Science, Engineering, & Technology

GENERAL RULES

Southern Plains Extension Unit County Fairs

ALL DEADLINES WILL BE ENFORCED.

      The shows and events of the Nuckolls & Thayer County Fairs will be under the direction of the designated Extension staff and superintendents. The Extension staff and superintendents will make all on-the-spot decisions necessary for the operation of the shows. In case of a complaint or a disagreement with the show, the exhibitor should discuss it with the Extension staff and the superintendent within one hour after the show.  If an agreement cannot be reached, then the exhibitor and/or the Extension staff and superintendent should request a grievance committee meeting. Grievance must be submitted in writing. The grievance committee will consist of two 4‑H Council members, two Fairboard members and one neutral superintendent. The decision reached by this committee is final. 

Rules: 

1. Eligibility Requirements- Competition in the county 4‑H Fair is open to youth who are enrolled in Nuckolls or Thayer County 4‑H projects in which he/she is exhibiting. The youth must be 8 years old on January 1 of the current calendar year and under the age of 19 years of age on January 1 of the current calendar year. CloverKid members are 5-7 years old on January 1 of the current calendar year.

2.  Pre-Entry- Pre-entries are required for ALL fair exhibits.

PRE-ENTRY DEADLINES:

Nuckolls – Paper Entries Only – July 11^th - 4:00 PM

Thayer – Online Entries Only- July 17^{th –} Midnight 

        Absolutely NO late entries accepted!

*Subject to the 4‑H Council policy committee.

3. Number of Entries Allowed.

    Nuckolls County ONLY- Unlimited entries per class numbermay be made per exhibitor with the exception of a limit of two entries per class in Horticulture. 

    Thayer County ONLY- Limit of two entries per class.

    See General Animal Rules for livestock entries.

4. Entry Tags- Exhibits other than livestock contest must have entry tags attached to the exhibit at the time of entry. Tags are printed through your local Extension office.

5. Exhibits Released-See fair schedule. All fair exhibits are expected to be at the fair during scheduled times. Premium and support/booster payments will be forfeited for early removal of show animals with the exception of animals released for the animal’s welfare by written approval from a veterinarian or for legitimate reason with written approval from the species’ superintendent and a representative of the 4‑H council livestock committee. In case of emergencies, contact the office staff. The Extension staff is not responsible for items left at the fairgrounds after scheduled times.

6. Exhibit Space- Space will be assigned by the department superintendent(s). All possible care will be used to prevent loss or injury to articles or animals exhibited, but fair management will in no way be responsible should loss or injury occur. 

7. Disclaimer of Responsibility- All persons participating in the Thayer or Nuckolls County Fairs, either as exhibitors or as spectators, agree to make no claim against said Thayer or Nuckolls County Fair Association/Board, its officers, employees, volunteers, or any other exhibitors for any loss or damage to persons or property in connection with the activities of the Thayer or Nuckolls County Fair and said participants agree to hold said Association and persons harmless from any such claims. Individuals will be held personally responsible for his or her actions and the Fair Association will not be accountable or responsible for any injury. Exhibitors are responsible for the health of their animals.

8. Ribbons & Premiums Awarded- All exhibits will be divided into groups according to merit. 

Purple…………… Excellent             Blue……………………...…Good

Red……………….Fair                     White………Needs Improvement          Rainbow……..Non-Competition

Equal exhibits will be given ribbons of the same color in each class. Only worthy exhibits will be awarded ribbons and/or premium money. Trophies/banners/medals will only be awarded to purple & blue-ribbon exhibits. NO red or white ribbon entries will earn trophies. Unused trophies will be recycled.  In case there are insufficient funds to pay premiums in full, they will be prorated and paid accordingly. 

9. State Fair Eligibility-An exhibitor must be a 4‑H member enrolled in the county which she/he represents and must be 8 years old by January 1, with the exception of program specific age requirements for Shooting Sports and First Lego League. 

10. State Fair Exhibits- The Extension staff deliver many exhibits to the State Fair as a courtesy to exhibitors. However, exhibitors may be asked to arrange transportation of some articles that are large or heavy.

11.  State Fair Rules will apply when County Fair Rules are not adequate.  In case the general rules conflict with department rules, the department rules govern.                      

12. Interview Judging- Clothing Judging- See interview information involving Clothing and Fashion included with the Clothing & Fashion show rules. Static Exhibit-Interview judging is encouraged but not required for all other static exhibits. 4‑Hers can interview once per project for a total of 5 interviews. Sign up for interview judging will occur at exhibit check in, in each of the project areas. Interviews will be scheduled according to the project and class. If the 4‑Her can’t make a certain time, we will try to work with them, but we cannot guarantee that they will get to interview with all the projects they want.   

13. Exhibits entered by 4‑H members with special needs will be marked for the judge’s information only. Families will provide this information.

14. Identification- In addition to entry tag, a label with the exhibitor’s name, item’s department, division, and class should be attached to each separate piece of the exhibit.

15. Scoresheets- Scoresheets used for classes in divisions are listed by the corresponding division or class. PLEASE NOTE: County Fair scoresheets are denoted with CF numbers whereas State Fair scoresheets are denoted with SF numbers. Many county classes will use state fair scoresheets. For example: Heritage scoresheets begin with letters SF therefore will be found on the scoresheet website listed above. If any entire division uses the same scoresheet, the scoresheet number will be listed under the division title.

16.* Classes- All classes with a star (*) after the class number are not eligible for state fair competition.

STEM (ENGINEERING)

Premium Code: STATIC ITEMS

This department gives 4-H members an opportunity to display their knowledge and skills gained relating to computers, drones, electricity, energy, geospatial, robots, rockets, drones, welding and woodworking. Through participation in this department, 4-H members will present their knowledge in these areas as they relate to STEM.

Rules:

1. The name and county of each 4-H should appear separately on the back of each board, poster or article and on the front cover of the notebooks so owner of the exhibit may be identified if the entry tag is separated from the exhibit.

2. Demonstration boards should include an overall title for the display, plus other necessary labeling.

3. Reports should be written using the scientific method whenever possible (Background, the Question or hypothesis, what you plan to do and what you did, Method used and observations, Results: what you learned.) All reports should be computer generated and enclosed in a clear plastic cover. The reports should be attached securely to the display.

4. Reports should be written using the scientific method whenever possible (Background, the Question or hypothesis, what you plan to do and what you did, Method used and observations. Results: What you learned. All reports should be computer generated and enclosed in a clear, plastic cover. The reports should be attached securely to the display.

5. Please refer to the General Rules for the policy regarding firearms, items with a blade, and other related items.

6. Please refer to the General Rules for the policy regarding use of copywritten images.

7. Premier 4-H Science Award is available in this area.

8. Team Entries: To qualify for entry at the Nebraska State Fair for any team exhibit, the exhibit and all supporting information must clearly be the work of a team instead of an individual, and must have at least 50% of all team members enrolled in 4-H. Additionally, all enrolled 4-H members on the team should complete and attach an entry tag to the materials. A supplemental page documenting the individual contributions to the project should be included. The entry will be judged as a team, with all team members receiving the same ribbon placing.

9. State Fair qualified videos, presentations and other electronic exhibits should be submitted to https://go.unl.edu/2025nesfstem by August 15th, 2026. Videos can be uploaded to a video streaming application and exhibitors MUST provide a hard copy QR code for viewing. 4-H members are encouraged to test their codes or links on several devices to check for appropriate permissions for public viewing

10. Posters in this department can be any size up to 28 inches x 22 inches when ready for display. Example: trifold poster boards are not 28 inches x 22 inches when fully open for display.

11. Several classes require a display board which should be a height of 24 inches and not to exceed 1/4-inch thickness. A height of 24 7/8 inches is acceptable to allow for the saw kerf (width) if two 24-inch boards are cut from one end of a 4 foot by 8-foot sheet of plywood. Nothing should be mounted within 3/4 inch of the top or bottom of the board. (Example: Woodworking & Electricity.)

      a. Fabricated boards such as plywood, composition board, or particle-type lumber may be used for demonstration displays.

b. Demonstration boards should be sanded and finished to improve their appearance. The finish on a demonstration board will be judged as a woodworking exhibit.

c. Demonstration boards should include an overall title for the display, plus other necessary labeling.

d. Reports should be written using the scientific method whenever possible (background, the question or hypothesis, what you plan to do and what you did, method used and observations, results: what you learned. All reports should be computer generated and enclosed in a clear plastic cover. The reports should be attached securely to the display.

12. If the project (i.e. picnic tables, wishing wells, swings, chairs, bridges, doghouses, etc.) is designed to be used outside, it will be displayed outside.

13. All outside projects MUST have entry tag and supporting information placed in a protective bag to prevent damage from weather events such as rain and be ATTACHED to projects with string, zip ties, etc.

ROCKETS/DRONES

  This division gives 4-H’ers a chance to display the rockets and drones they have created. Through participation in this division 4-H’ers will show judges what they learned about and how they adapted their exhibit throughout the project. Involvement in Rockets gives participants first-hand experience in modern technology. 

  Learn about how to: Fly kites and launch rockets; Explore space; Experience disorientation; Learn to fly an airplane; Make a shuttle on a string; Control flight directions; Create an altitude tracker; Evaluate navigation systems; Explore pilot certification requirements. 

Rules:

1. The name and county of each exhibitor should appear separately on the back of each board, poster or article and on the front cover of the notebooks so owner of the exhibit may be identified if the entry tag is separated from the exhibit. 

2. Rockets must be supported substantially in order to protect the rocket from breakage. Rockets are to be mounted on a base that has dimensions equal to or less than 12" x 12" and the base should be 3/4" thick. No metal bases. If the rocket fins extend beyond the edges of the required base (12” x 12”), then construct a base that is large enough to protect the fins. The base size is dictated by the size of the rocket fins.

 3. The rockets must be mounted vertically. Please do not attach sideboards or backdrops to the displays. In addition, a used engine or length of dowel pin is to be glued and/or screwed into the board and extended up into the rocket's engine mount to give added stability. 

4. Rockets must be equipped as prepared for launching, with wadding and parachute or other recovery system. Rockets entered with live engines, wrong base size or sideboards will be disqualified. 

5. A report, protected in a clear plastic cover, must include: 1) rocket specification (include original or photo of manufacture packaging stating rocket skill level), 2) a flight record for each launching (weather, distance, flight height), 3) number of launchings, 4) flight pictures 5) Safety (how did you choose your launch site? Document safe launch, preparations, and precautions) 6) objectives learned and 7) conclusions. 

6. The flight record should describe the engine used, what the rocket did in flight and recovery success. Points will not be deducted for launching, flight or recovery failures described. This includes any damage that may be shown on the rocket. Complete factory assembled rockets will not be accepted at the State Fair. 

7. Judging is based upon display appearance, rocket appearance, workmanship, design or capabilities for flight, number of times launched and report. Three launches are required to earn the maximum launch points given on the score sheets. For scoring at the State Fair, only actual launches count, misfires will not count towards one of the required three launches. 

• For self-designed rockets only, please include a digital recorded copy of one flight. In the documentation, please include a description of stability testing before the rocket was flown. 

• The skill level of a project is not determined by the number of years in project. Skill level is determined by the level listed on the manufacturing packaging. 

• 4-H Rocket project levels are not intended to correspond to National Association of Rocketry model rocket difficulty ratings or levels. 

8. High power rockets (HPR) are similar to model rocketry with differences that include the propulsion power and weight increase of the model. They use motors in ranges over “G” power and/or weigh more than laws and regulations allow for unrestricted model rockets. These rockets are NOT appropriate for 4-H projects and will be disqualified. 

9. 3D Printed Rockets are deemed unsafe in fabrication and design for launch. These rockets are NOT appropriate for 4-H Rocket projects and will be disqualified if entered in Rocket Classes. 3D Printed Rockets are ACCETPABLE if entered in 3D Printing Classes.

Aerospace/Rockets/Drones

Dept H Division 850

Classes

1     Rocket- Scoresheet SF92- Any Skill Level Rocket with wooden fins and cardboard body tubes painted by hand or air brush.

2    Aerospace Display- Scoresheet SF277- Poster or display board that displays or exemplifies one of the principles learned in the Lift Off project. Examples include display of rocket parts and purpose, explaining the parts of a NASA rocket or shuttle, interview of someone in the aerospace field, or kite terminology. Include notebook containing terminology (definition), and what was learned. Display can be any size up to 22” x 28.”

3    Rocket Painted Commercially- Scoresheet SF92- Any Skill Level Rocket with wooden fins and cardboard body tubes painted using commercial application, for example commercial spray paint.

4    Rocket Scoresheet SF92- Any self-designed rocket with wooden fins and cardboard body tubes.

5   Drone Poster- Scoresheet SF277- Exhibit must be designed to educate yourself and others on one or more of the following topics: drone technologies, uses of drones, the different types of drones, types of training needed to operate drones, and the laws and regulations users must follow.  Poster can be any size up to 22” by 28”.

6   Drone Video- Scoresheet SF277- Exhibit must demonstrate how the drone interacts with the outside world. Examples include field scouting, surveying damage from natural disasters, drones used in commercial applications and settings, drones used for structural engineering, or any example of your choosing. The video should not exceed five minutes. 

COMPUTER SCIENCE

Booting Up-Unit 1

Dept H  Division 860

Classes

20* Poster- Scoresheet CF022- Create a poster on a lesson learned in Unit 1. Examples might include hardware, software programs, how to take care of a computer and operating systems.

24*Computer Designed Announcement/Greeting Card- Scoresheet CF023- Card should be created using a commercially available graphics program. Include which software program was used. Prefabricated cards from commercially available card programs will NOT be accepted. No theme required. Put cards in some type of protective cover.

27* 4-H Promotional Flier- Scoresheet CF024- Exhibit should be created on an 8 1/2" x 11" page using a commercially available graphics software package. Fliers can be color or black and white. Fliers can be a whole page or a folded flier. Display on appropriate size paper or poster board, not to exceed 24" x 24".

28* Cybercard- Scoresheet CF025- (For ages 8-12)- Exhibit will consist of two cyberspace greeting cards sent to the office e-mail address. The exhibit will be a printout of each card and a one-page text telling the steps taken to complete and send the cybercards and how you may be able to use cybercards. Due in Extension office by 4:00 p.m. on entry deadline date. Office email address: nuckolls-county@unl.edu or thayer-county@unl.edu

29* Utilizing the Internet- Scoresheets CF026- Exhibit will be a notebook of web sites used to plan a real or fictitious vacation. Notebook will consist of at least four different web sites illustrating the following: 1) airfare and/or directions to drive to destination, 2) hotels/motels in the area, 3) things to do (i.e., baseball game, Disney World, amusement park) and 4) a maximum of one- page text telling the steps taken to plan the vacation. List web sites for each site and tell how you may be able to use the web to plan or research other things in the future.

Computer Mysteries-Unit 2

Dept H  Division 860

Classes

1    Computer Application Notebook- Scoresheet SF277- 4-H exhibitor should use computer application to create a graphic notebook utilizing computer technology. This exhibit consists of a notebook (8.5x11 inches) which should include two parts: 

(1) A detailed report describing: 

a. the task to be completed, 

b. the computer application software required to complete the task, 

c. specific features of the computer application software necessary for completing the task 

(2) Print out of your project. Project may be in color or black and white. 4-H member may create any of the following:

a. Greeting Card (Five different cards such as a birthday, wedding, anniversary, sympathy, get well or other)

b. Business Card (three cards for three different individuals and businesses)

c.  Menu (minimum of two pages including short description of foods and pricing; book layout (l-book)

d.  Promotional flyer (three flyers promoting three different events)

e.  Newsletter (minimum two pages)

f.  Other: examples such as precision farming or family business logo, etc.

2    Produce a Computer Slideshow Presentation- Scoresheet SF276- Using presentation software a 4-H Member designs a multimedia computer presentation on one topic related to youth. presentation software a 4-H Exhibitor designs a multimedia computer presentation on one topic related to youth. A 8.5-inch x 11 inch three ring notebook with a printout of all the slides should be submitted. Slideshow should include a minimum of 10 slides and not more than 25. Incorporate appropriate slide layouts, graphics, animations, and audio (music or voice and transition sounds do not count). Each slide should include notes for a presentation. Videos should be designed for web viewing or may be uploaded to a video streaming application and exhibitors MUST provide a hard copy QR code for public viewing. 4-H members should test their codes or links on several devices to check for appropriate permissions for public viewing.

Computer Mysteries-Unit 3

Dept H  Division 860

Classes

3    Produce an Audio/Video Computer Presentation- Scoresheet SF276- Using presentation software a 4-H exhibitor designs a multimedia computer presentation on one topic related to youth, including audio and/or video elements. A notebook with a printout of all the slides should be submitted. The presentation should be at least two minutes in length and no more than five minutes in length, appropriate graphics, sound and either a video clip, animation, or voice over and/or original video clip. Videos should be designed for web viewing or may be uploaded to a video streaming application and exhibitors MUST provide a hard copy QR code for public viewing. 4-H members should test their codes or links on several devices to check for appropriate permissions for public viewing. 

4    How To STEM (Science, Technology, Engineering, and Math) Presentation- Scoresheet SF276- 4-H member designs a fully automated two to five minute 4-H “how to” video. Submissions should incorporate a picture or video of the 4-H member, as well as their name (first name only), age (as of January 1 of the current year), years in 4-H, and their personal interests or hobbies. Videos should be designed for web viewing or may be uploaded to a video streaming application and exhibitors MUST provide a hard copy QR code for public viewing. 4-H members should test their codes or links on several devices to check for appropriate permissions for public viewing. 

5    Virtual Platform Presentation- Scoresheet SF276- 4-H member design a fully automated educational presentation using any multimedia platform such as Tik Tok, YouTube, Canva, Canvas, etc. Submissions may include a notebook, poster, etc., explaining the process, experience, and/or presentation.  Exhibitors MUST provide a hard copy QR code for public viewing. 4-H members should test their codes or links on several devices to check for appropriate permissions for public viewing. 

 6   Create a Website/Blog or App- Scoresheet SF275- Design a simple website/blog or app for providing Information about a topic related to youth. Include an explanation of why the entry was created. Any current website, blog, or app development platform is accepted such as Google Sites, iBuildApp, Wix, etc. Exhibitors MUST provide a hard copy QR code for public viewing. 4-H members should test their codes or links on several devices to check for appropriate permissions for public viewing. 

7    3D Printing- Scoresheet SF1050- 3D printing uses plastic or other materials to build a three-dimensional (3D) object from a digital design (including 3D Pen Creation). Youth may use original designs or someone else’s they have redesigned in a unique way. Exhibits will be judged based on the motivation and/or problem identified. For example, 3D objects printed as part of the design process for robot or other engineering projects. Must include design notebook that addresses the following questions:

1. What was the motivation for your design or the problem you were solving with your design? i.e. Is your item a functional or decorative piece?
2. Please include a picture of original design, citation of designer/website OR if design is completely original (you created it using CAD software), then state that it’s original. If item was not completely original, indicate what you did to the original design to modify it to better meet the design problem stated in #1 above. Its design was modified multiple times, please indicate what change was made with each modification, and what prompted the need for the change. i.e. I printed it, and the design was too fragile, so I resliced the print to make thicker external walls, or to have a denser infill.
3. Define your process for designing/printing. What software and/or hardware was used (indicate type of 3D printer or if item was created with 3D pen)?
4. What materials were selected for your project?
5. If your final design has any moving parts, define how you determined an appropriate allowance in your design.
6. Identify any changes that you would make to improve your design.

8    Maker Space/Digital Fabrication- Scoresheet SF1050-This project is a computer-generated project created using a laser cutter, vinyl cutter, heat press or CNC router, Vector or 3D based software such as Corel Draw or Fusion 360 would be an example of an appropriate software used to create your finished project. Project should include a notebook with the following: 

1. What motivated you to create this project. 

2. Software and equipment used. 

3. Directions on how to create the project. 

4. Prototype of plans 

5. Cost of creating project

6. Alterations or modifications made to original plans.

7. Changes you would make if you remade the project.   

State Fair Team Entry Option: To qualify for entry at the Nebraska State Fair team materials entered in Class 8– Maker Space/Digital Fabrication must clearly be the work of a team instead of an individual and must have at least 50% of all team members enrolled in 4-H. Additionally, all enrolled 4-H members on the team should complete and attach an entry tag to the materials. A supplemental page documenting the individual contributions to the project should be included. The entry will be judged as a team, with all team members receiving the same ribbon placing.

ELECTRICITY

Rules:

1. The name and county of each 4-H member should appear separately on the back of each board, poster or article and on the front cover of the notebooks so owner of the exhibit may be identified if the entry tag is separated from the exhibit.
2. Several classes require a display board which should be a height of 24 inches and not to exceed ¼” thickness. A height of 23 7/8” is acceptable to allow for the saw kerf (width) if two 24” are cut from one end of a 4’ x 8’ sheet of plywood. Nothing should be mounted within ¾” of the top or bottom of the board. (Example: Woodworking & Electricity.)
3. Fabricated boards such as plywood, composition board, or particle-type lumber may be used for demonstration displays.
4. Demonstration boards should be sanded and finished to improve their appearance. The finish on a demonstration board will be judged as a woodworking exhibit.
5. Demonstration boards should include an overall title for the display, plus other necessary labeling.
6. Reports should be written using the scientific method whenever possible (Background, the Question or hypothesis, what you plan to do and what you did, Method used and observations). Results: what you learned. All reports should be computer generated and enclosed in a clear plastic cover.
7. The reports should be attached securely to the display.

Magic of Electricity-Unit 1

Dept H  Division 870

Classes

9*   Bright Lights- Scoresheet SF226- Create your own flashlight using items found around your house. Flashlights should be made from items that could be recycled or reused. No kits please. Magic of Electricity Unit 1(BU-06848): Make a switch. Use the following items: D cell battery, battery holder, insulated wire, 2- or 2.5-volt light bulb, bulb holder, paper clip, cardboard, and two brass paper fasteners to create a circuit that you can open and close.

11* Conducting Things- Scoresheet SF226-Make a circuit with a switch and a light bulb that can be used to test different household items for their ability to act as an insulator or conductor. You must find five items that are conductors and five items that are insulators. Create a table that illustrates your results. 

12* Is There a Fork in the Road?- Scoresheet SF226- Use the following items to construct one parallel and one series circuit. Items: D cell battery, battery holder, insulated wire, bulb holder and a 2- or 2.5-volt light bulb.

                       Investigating Electricity-Unit 2

Dept H  Division 870

Classes

21* Case Of Switching Circuit Essay- Scoresheet SF226- Use the following items: two D cell batteries, two battery holders, light bulb, bulb holder, a 3" x 6" piece of cardboard, six brass paper fasteners and approx. 2’ of 24 gauge insulated wire to build a three-way switch. Write a short essay or create a poster that illustrates how three-way switches function.

22* Rocket Launcher Poster- Scoresheet SF226- Construct a rocket launcher out of the following materials: a plastic pencil box that is at least 4” x 8”, single pole switch, single throw switch, normally-open push button switch, 40’ of 18 or 22 gauge stranded wire, 4 alligator clips, 2- by 6- board 6” long, 1/8” diameter metal rod, rosin core solder, soldering iron or gun, wire stripper, small crescent wrench, pliers, small phillips and straight blade screwdrivers, drill, 1/8” and 1/4” drill bits, rocket engine igniters, additional drill bits matched to holes for two switches. You must successfully build a rocket launcher and light two rocket igniters with your launcher. You DO NOT have to actually fire a rocket off of the launcher.  Create a poster using photographs to show the “step by step process” you used to build your launcher.

23* Stop the Crime Poster- Scoresheet SF226- Build an ALARM using the following materials: On-off push button switch, mercury switch, buzzer-vibrating or piezoelectric, 9-volt battery, 9-volt battery holder, 4” x 4” by 1/8”   Plexiglas board to mount circuit on; rosin core solder, soldering gun/iron, 2’ of 22 gauge wire, wire strippers, hot glue sticks, hot glue gun and a plastic box with a lid to mount your alarm circuit on. Create a poster using photographs to show the “step by step process” you used to build your alarm.

Dept H  Division 870

Classes

1    Electrical Tool/Supply Kit- Scoresheet SF226- Create an electrical supply kit to be used for basic electrical repair around the house. Include a brief description of each item and its use. Containers should be appropriate to hold items.

2    Lighting Comparison- Scoresheet SF226- Display studying the efficiency of various lighting (incandescent, fluorescent, halogen, Light Emitting Diodes, etc.). The exhibit could be a poster display, or an actual item.

3    Electrical Display/Item- Scoresheet SF226- Show an application of one of the concepts learned in the Wired for Power project. Examples include re-wiring or building a lamp, re-wiring or making a heavy-duty extension cord or developing an electrical diagram of a house. The exhibit could be a poster display, or an actual item.

4    Poster- Scoresheet SF227- Should exemplify one of the lessons learned in the Wired for Power Project. Posters can be any size up to 28” x 22”.

Electronics-Unit 4 

Dept H  Division 870

Classes

5    Electrical/Electronic Part Identification- Scoresheet SF226- Display different parts used for electrical/electronic work. The exhibit should show the part (either picture or actual item) and give a brief description, including a symbol of each part and its function. Display should include a minimum of 10 different parts.

6    Electronic Display- Scoresheet SF229- Show an application of one of the concepts learned in the Entering Electronics manual. Examples include components of an electronic device (refer to page 35 of the Entering Electronics manual). 

7    Electronic Project- Scoresheet SF229- Exhibit an electronic item designed by the 4-H member or from a manufactured kit that shows the electronic expertise of the 4-H member. Examples include: a radio, a computer, or a voltmeter. 

8    Poster- Scoresheet SF277- Should exemplify one of the lessons learned in the Entering Electronics Project. Posters can be any size up to 28” x 22”.

ROBOTICS

     Involvements in STEM Robotics give participants first-hand experience in modern technology. 

     This division involves many different aspects of Robotics. Participants will learn more about how robots are designed and developed as well as the mechanical and electronic elements of robots. Discover the design and functions of robotic arms; Build a robotic arm that moves; explore robot movement, power transfer, and locomotion; Design and build machines the roll, slide, draw or move underwater; Make the connection between the mechanical and electronic elements of robots; Explore sensors, write programs, build circuits, and design sensors, loops and conditional statements.

       Youth enrolled in Virtual Robotics, Junk Drawer Robotics (Level 1, 2, or 3, or Robotics Platforms may exhibit in any class within this division.

      Team Entries: To qualify for entry materials entered in robotics classes must clearly be the work of a team instead of an individual; must have at least 50% of all team members enrolled in 4-H. Additionally, all enrolled 4-H members on the team should complete and attach an entry tag to the materials. A supplemental page documenting the individual contributions to the project should be included. The entry will be judged as a team, with all team members receiving the same ribbon placing.

      Creating a video of your robot in action would be helpful for the judges but is not mandatory. Videos should be uploaded to a video streaming application and exhibitors should provide a hard copy QR code for viewing. Entries must be submitted to your local extension office one week prior to static judging day but exhibitors MUST provide a hard copy QR code for viewing. Exhibitors are encouraged to test their codes or links on several devices to check for appropriate permission for public viewing.

Rules:

1. The name and county of each exhibitor should appear separately on the back of each board, poster or article and on the front cover of the notebooks so the owner of the exhibit may be identified if the entry tag is separated from the exhibit.

2. Reports should be written using the scientific method whenever possible (Background, the Question or hypothesis, what you plan to do and what you did, Method used and observations, Results: what you learned.  All reports should be computer generated and enclosed in a clear plastic cover. The reports should be attached securely to the display.

3. Posters can be any size up to 28” by 22” when ready for display. Example: tri fold poster boards are not 28” by 22” when fully open for display.

Dept H  Division 861

Classes

1    Robotics Poster- Scoresheet SF277- Create a poster (28” X 22”) communicating a robotics theme such as “Robot or Not”, “Pseudocode”, “Real World Robots”, “Careers in Robots”, “Autonomous Robotics”, “Precision Agriculture”, or a robotic topic of interest to the 4-H member. 

2    Robotics Notebook- Scoresheet SF237- Explore a robotics topic in-depth and present your findings in a notebook. Documentation should include any designs, research, notes, pseudocode, data tables, or other evidence of the 4-H’ers learning experience. The notebook should contain at least three pages. Topics could include a programming challenge, programming skill, calibration, sensor exploration, or any topic suggested in Class 1. 

4    Robotics Career Interview- Scoresheet SF239-Interview someone who is working in the field of robotics, and research the career in robotics. Interviews can either be written or in a multimedia format such as a short video uploaded to a cloud sharing service.  Include a QR code with your project to allow for judging access. Entries must be submitted to your local extension office one week prior to static judging day but exhibitors MUST provide a hard copy QR code for viewing. Exhibitors are encouraged to test their codes or links on several devices to check for appropriate permission for public viewing.  Written interviews should be in a notebook. Written reports should be 3 to 5 pages, double spaced, 12-point font, and 1” margins. Multimedia reports should be between 3 to 5 minutes in length.

5    Robotics Sensor Notebook- Scoresheet SF239-Write scratch code which includes at least 2 sensor activities. Include the code written and explain the code function. Codes can be submitted as a multimedia format uploaded to a cloud sharing service.  Include a QR code with your project to allow for judging access. Multimedia presentations should be 3 to 5 minutes in length. Entries must be submitted to your local extension office one week prior to static judging day but exhibitors MUST provide a hard copy QR code for viewing. Exhibitors are encouraged to test their codes or links on several devices to check for appropriate permission for public viewing.

6*   Build a robot- (may use kit)- Scoresheet SF243- Include a robot and notebook including the pseudocodes for at least one program you have written for the robot, the robot’s purpose, and any challenges or changes you would make in the robot design or programming. If robot is 15” wide and 20” tall they may not be displayed at state fair. It is recommended the exhibit be submitted under class H861003 Robotics Video. Junk Drawer Robotics do not qualify.

7    Kit Labeled Robot (cannot be FREE programmed) and Notebook- Scoresheet SF243- This class is intended for explorations of robotic components such as arms or vehicles OR educational kits marketed as robots that do not have the ability to be programmed to “sense, plan and act.” The exhibit should include a notebook with the robot the youth has constructed. Included in the notebook should be (1) A description of what the robot does, (2) pictures of programs the robot can perform, (3) why they chose to build this particular form, and (4) how they problem solved any issues they might have had during building and programming. A picture story of assembly is recommended. If the robot is more than 15” inches wide and 20” inches tall they may not be displayed in locked cases at the State Fair. If the robot is too large, it is recommended you create a video of how your robot works. It is recommended to enter the project under Class H8613- Robotics Video in the Robotics Showcase. 

8    3D Printed Robotics Parts- Scoresheet SF1050- This class is intended for 4-H members to create parts through 3D printing, that help create their robot or aid the robot in completing a coded function. Project should include a notebook describing the process used to create the project, describing the success of your designed piece (did it work), intended use of the product and the modifications made to the item.

9*   Lego League Project– This class is intended to provide 4-H members participating in Lego League during the past project year a place to be judged and to be displayed to the public. 

GEOSPATIAL

            Geospatial is a diverse category that includes a variety of exhibits 4-H members can get involved in. Through participation in this division 4-Hers will gain more knowledge about Nebraska’s rich history and diverse geography. Take close note of the rules to ensure your exhibit qualifies. 

Rules:

1. The name and county of each exhibitor should appear separately on the back of each board, poster, or article and on the front cover of the notebooks so owner of the exhibit may be identified if the entry tag is separated from the exhibit.
2. Reports should be written using the scientific method whenever possible (Background, the Question or hypothesis, what you plan to do and what you did, Method used and observations). Results: What you learned. All reports should be computer generated and enclosed in a clear, plastic cover. The reports should be attached securely to the display.
3. No copywritten images allowed.

Dept H  Division 880

Classes

1    Poster- Scoresheet SF277-Create a poster (not to exceed 14” x 22”) communicating a GPS theme such as how GPS or GIS works, Careers that use GPS or GIS, how to use GPS.  What is GIS, GPS or GIS in Agriculture, Precision Agriculture, or a geospatial topic of interest.

2    4-H Favorite Places or Historical Site Poster- Scoresheet SF277- 4-H member identifies a favorite place or historical site (including grave sites) in Nebraska. The exhibit should include latitude and longitude, digital pictures, and a local area map. Poster size should not exceed 14” x 22”.

3    GPS Notebook- Scoresheet SF300- Keep a log of at least five places visited using a GPS enabled device. At least one site should be from a community other than where you live. For each site, record the latitude, longitude, and elevation.  Also include a description of the site, a paragraph explaining what was interesting about the site or finding it. Photos of each site and/or cache are optional but encouraged.

4    Geocache- Scoresheet SF301- Assemble a themed geocache (physical geocache is REQUIRED with exhibit). Each geocache should be a water-tight container. It should include a logbook and pencil for finders to log their visits and may include a small trinket, geo-coins, etc. for the finders to trade. Documentation should include a title, teaser description and the geographic coordinates of intended placement. The entry may include a photograph of the cache in its intended hiding place. Register the site at geocashing.com

5    Agriculture Precision Mapping- Scoresheet SF302- 4-H members will assemble a notebook that will include a minimum of two digital copies of various data layers that can be used in precision agriculture to identify spatial patterns and/or correlation (printed copies of websites where application can be purchased is acceptable). A report on how the analysis of the various data will be used to make a management decision.

6    4-H History Map/ Preserve 4-H History- Scoresheet SF302- Nominate a Point of Interest for the 4-H History Map Project. Include copy of submitted form in folder or notebook. To nominate a site for the 4-H history map go to http://arcg.is/1bvGogV For more information about 4-H history go to  https:/4-hhistorypreservation.com/history_map// for step by step video on nominating a point, please go to this link: http://tinyurl.com/nominate4h  Write a brief description of historical significance of 4-H place or person.(A minimum of one paragraph.) 

7    GIS Thematic Map- Scoresheet SF302- Using any GIS software, create a thematic map. Thematic maps can utilize any subject of interest to the 4-H member. Example maps would be Amelia Earhart’s or Sir Francis Drake’s voyage, population density maps, water usage maps or 4-H project in Nebraska. Create GIS Map using data from books and/or internet. Use reliable data, (U.S. Center or U.S. Census Bureau, etc.) Map any size from 8 ½” x 11” up to 36” x 24”, should include Title, Base Map, Neat Line, North Arrow, and Legend. Identify the source of your information on the back of the map.

8    Virtual Geocache- Scoresheet SF301- Keep a log of at least 5 places visited using a virtual geocache platform. At least one site should be from a community other than where you live. For each site, record the latitude, longitude, and elevation. Also, include a description of the site, a paragraph explaining what was interesting about the site or finding it. Photos of each site and/or cache are optional but highly encouraged. 

STEM ENERGY

This division provides 4-H members a way to present their idea about renewable energy resources. Through participation in this division, 4-H’ers will learn more about physics, friction, energy, and elasticity. In addition, participants will make a display to go along with their findings. 

Rules:

1. The name and county of each exhibitor should appear separately on the back of each board, poster, or article and on the front cover of the notebooks so owner of the exhibit may be identified if the entry tag is separated

2. Reports should be written using the scientific method whenever possible (Background, the Question or hypothesis, what you plan to do and what you did, Method used and observations, Results: what you learned. All reports should be computer generated and enclosed in a clear plastic cover. The reports should be attached securely to the display.

3. Posters can be any size up to 28” by 22” when ready for display. Example: tri fold poster boards are not 28” by 22” when fully open for display.

Dept H Division 900

Classes

1    Create and Compare Energy Resources Poster- Scoresheet SF277- Poster should explore two alternative/renewable energy resources.  Compare and contrast the two resources including two of the following information: amount of energy created, costs of production, usability of the energy, pros/cons of environmental impacts, etc. Poster can be any size up to 28” x 22”. 

2    Experiment Notebook- Scoresheet SF277- Notebook will explore the scientific method involving alternative/renewable energy sources. Information required. 1) Hypothesis, 2) Research, 3) Experiment, 4) Measure, 5) Report or Redefined Hypothesis.

3    Solar as Energy Display/Poster- Scoresheet SF277- Item should be the original design of the 4-H member. Include the item, or a picture if item is in excess of 6’ tall or 2’ x 2’. Include a notebook of why the item was designed and how it harnesses the power of the sun. Examples include solar ovens, solar panels, etc.

4    Water as Energy Display/Poster- Scoresheet SF277- Item should be the original design of the 4-Her. Include the item, or a picture if item is more than 6’ tall or 2’ x 2’. Include a notebook of why the item was designed and how it harnesses the power of water. 

5    Wind as Energy Display/Poster- Scoresheet SF277- Item should be the original design of the 4-H member. Include the item, or a picture if item is in excess of 6’ tall or 2’ X 2’. Include a notebook of why the item was designed and how it harnesses the power of wind.

6    Other Nebraska Alternative Energy- Scoresheet SF277- Notebook should explore Nebraska alternative energy source besides wind, water, and solar power. Include information on type of power chosen, infrastructure for distribution, what resources are needed to create this alternative resource, cost of production, and potential used of bio-products.  Examples include geothermal, biomass, ethanol, biodiesel, methane reactors, etc.

WOODWORKING

In this division 4-H members have the opportunity to create exhibits about varying levels of woodworking. In addition, participants can also create informational exhibits about their woodworking projects. Through involvement in this division 4-H members will be better educated about the topic and better their woodworking skills. 

Rules:

1. The name and county of each exhibitor should appear separately on the back of each board, poster, or article and on the front cover of the notebooks so owner of the exhibit may be identified if the entry tag is separated from the exhibit.

2. Requirements: All articles exhibited must include a plan (with drawings or sketches or blueprints) stating dimensions and other critical instructions a builder would need to know how to build the project and 4-H member’s name & county. Plans may include narrative instructions in addition to the dimension drawings and include any alterations to the original plan. Part of the score depends on how well the project matches the plans. If the plans are modified, the changes from the original need to be noted on the plans. All plans used for making the article must be securely attached and protected by a clear plastic cover.

3. 4-H’ers must be in Unit 3 or Unit 4 for the exhibit to be considered for the State Fair. All projects must have an appropriate finish.

4. If the project (i.e. picnic tables, wishing wells, swings, chairs, bridges, doghouses, etc.) is designed to be used outside, it will be displayed outside.

5. All outside projects MUST have entry tag and supporting information placed in a protective bag to prevent damage from weather events such as rain and be ATTACHED to projects with string, zip ties, etc.

Unit 1 is designed to develop skills such as measuring, squaring, cutting a board, driving nails, and using clamps and screws; build a picture frame, a letter holder, a box, or an airplane.

Unit 2 is designed to learn how to measure, cut, sand, drill, and use advanced hand and power tools; apply paint and use bolts and staples. Build a sawhorse, birdhouse, toolbox, or a stool.

 Unit 3 is to practice measuring angles, cutting dado and rabbet joints, using a circular saw, a table saw, and a radial arm saw; and how to sand and stain wood.

Dept H  Division 911

Classes- Units 1 & 2

11* Article as Shown in Woodworking 1 Manual- Scoresheet SF91-Item made using skills learned in the Measuring Up manual- 4-H 6875. Examples include recipe holder, stilts, or other skill level appropriate item. Items should be entered with construction plans. Or comparable items using hand tools.

12* Article as Shown in Woodworking 2 Manual-Scoresheet SF91- Item made using skills learned in the Making the Cut manual- 4-H 6876. Examples include birdhouse, foot stool, napkin, or letter holder.  Items should be entered with construction plans. Or comparable items using power hand electric jig saw, power drill, and/or oscillating sander.

Dept H  Division 911

Classes- Units 3 & 4

1    Woodworking Article- Scoresheet SF91- Item should be made using either joints, hinges, dowels, or a dado joining made using skills learned in the Nailing it Together manual. The item is required to be appropriately finished. Examples include bookcase, coffee table or end table.

3    Recycled Woodworking Display- Scoresheet SF91- Article made from recycled, reclaimed, or composite wood. Article must be appropriately finished and/or sealed and utilize one or more woodworking techniques from page 2 of the Unit 3 manual. The exhibit must include the woodworking plan, and a minimum one-page report of how the engineering design process was used to develop the woodworking plan. 

Engineering Design Process 

1) State the problem (Why did you need this item?) 

2) Generate possible solutions (How have others solved the problem? What other alternatives or designs were considered?)

3) Select a solution (How does your solution compare based on cost, availability, and functionality?) 

4) Build the item (What was your woodworking plan, and what processes did you use to build your item?) 

5) Reason for article finish (What type of finish, how did you finish or why you choose this finish?)

6) Evaluate (How does your item solve the original need?) 

7) Present results (How would you do this better next time?)

4      Composite Wood Project- Scoresheet SF91- 60% of the project must be wood and 40% made from other materials such as metal, rubber, resin, etc. All plans and plan alterations must be attached to the article. Protect plans with a cover. If a project is designed to be outside, it is required to have an appropriate outdoor finish.

5    Outdoor Wood Project made with Treated Wood- Scoresheet SF91- Treated wood projects DO NOT have to have a finished coating. All plans and plan alterations must be attached to the article. Protect plans with a cover if project is designed to be outside. Examples include picnic tables, planters, outdoor furniture, etc. 

6     Woodworking Article- (SF91)- Item made using skills learned in the Finishing It Up Project. Examples include dovetailing, making a pen using lathe, overlays, using a router, etc. The item is required to be appropriately finished.

7    Wood Project Created on a Turning Lathe- Scoresheet SF98- Article is the object created from spinning wood on a turning lathe. Article must be appropriately finished and/or sealed. The exhibit must include plans detailing design and the process of completion, any changes made to the design, details of finishing techniques, and other relevant information about the article. Must include a description of

8    Recycled Woodworking Display- Scoresheet SF91- Article made from recycled, reclaimed, or composite wood. Article must be appropriately finished and/or sealed and utilize one or more woodworking techniques from page 2 of the Unit 4 manual. Exhibit must include the woodworking plan and a minimum one-page report of how the design and engineering process was used to develop the woodworking plan. 

1) State the problem (Why did you need this item?) 

2) Generate possible solutions (How have others solved the problem? What other alternatives or designs were considered?)

3) Select a solution (How does your solution compare based on cost, availability, and functionality?) 

4) Reason for the article finish. (What type of finish, how did you finish or why did you choose this finish?)

5) Build the item (What was your woodworking plan, and what processes did you use to build your item?) 

6) Evaluate (How does your item solve the original need?) 

7) Present results (How would you do this better next time?) 

WELDING

All metal welding processes are accepted. This division helps learn the basics of welding. In addition, 4-H’ers get the opportunity to present their knowledge on the topic and display what they have made. Involvement in Welding gives first-hand experience in a skill that can be used for a lifetime.   

Rules:

1. The name and county of each exhibitor should appear separately on the back of each board, poster, or article and on the front cover of the notebooks so owner of the exhibit may be identified if the entry tag is separated from the exhibit.

2. All welds exhibited in class 1 or 2 must be mounted on a 12" high x 15" long display board of thickness not to exceed 3/8". Attach each weld on a wire loop hinge or equivalent, so the judge can look at the bottom side of the weld when necessary. Each weld should be labeled with information stated, 1) type of welding process (stick, MIG, TIG, Oxy-Acetylene, etc.), 2) kind of weld, 3) welder setting, 4) electrode/wire/rod size, and 5) electrode/wire/rod ID numbers. Attach a wire to the display board so it can be hung like a picture frame. No picture frame hangers are accepted.

3. Fabricated board such as plywood, composition board, or particle-type lumber may be used for demonstration displays.

4. Demonstration boards should be sanded and finished to improve their appearance. The finish on a demonstration board will be judged as a woodworking exhibit.

5. Reports should be written using the scientific method whenever possible (Background, the Question or hypothesis, what you plan to do and what you did, Method used and observations, Results: what you learned. All reports should be computer generated and enclosed in a clear plastic cover. The reports should be attached securely to the display. 

6. If no plans are included with welding art, welding article, welding furniture or composite weld, project item will be disqualified.

7. All outside projects MUST have an entry tag and supporting information placed in a protective bag to prevent damage from weather events such as rain and be ATTACHED to projects with string, zip ties, etc.

ARCS AND SPARKS

Learn to cut metal with an arc solder; weld high carbon, spring steel and alloy steels; weld horizontal, vertical, and overhead positions,

with welding article or welding furniture, item will be disqualified.

Dept. H Division 920

Classes

1 Welding Joints (SF281)-a display of one butt, one lap and one fillet weld. 

1. All welds should be made with the same electrode/wire/rod size and number.

 2. Welds should be made only on one side of metal so penetration can be judged. 

3. Welds should be cleaned with a chipping hammer and wire brush. Apply a coat of light oil (penetrating oil) to the metal to prevent rusting. Wipe off excess oil. 

4. It is suggested that all welds be of the same size and thickness as metal. These pieces, referred to as coupons, should be 1 ½ to 2 inches wide and 3 ½ to 4 inches long. A good way to get this size is to buy a new cold rolled strap iron and cut it to length. The extra width is needed to provide enough metal to absorb the heat from the welding process and prevent the coupons from becoming too hot before the bead is completed. Narrower coupons will become very hot, making an average welder setting too cold at the bead start, just about right in the middle, and too hot at the end. The correct way to weld narrow strips is to make short beads and allow time to cool, however this project requires a full-length bead. 

5. Stick welding: Suggested coupon thickness - ¼ inch if using 1/8 inch rod. Suggested rod-AC and DC straight or reverse polarity- first E-7014, second E-6013 

6. MIG welding: Suggested coupon thickness - ¼ inch if using .035 wire and 1/8 inch if using .023 wire 

7. Oxy-Acetylene: Suggested coupon thickness – 1/8 inch. Suggested rod– 1/8 inch mild steel rod

2 Position Welds (SF281)-a display showing three beads welded in the vertical down, horizontal and overhead positions.

1. It is suggested that all welds be of the same size and thickness of metal. These pieces are referred to as coupons. The welds can be on one coupon that is about 4 inches x 4 inches or on individual coupons that are about 2 inches x 4 inches and ¼ inch thick. Suggested rods for this class of position welds for AC and DC straight or reverse polarity is, first E-6013, second E-7014 and E-6010 for DC reverse polarity only. 

2. Welds should be cleaned with a chipping hammer and wire brush. Apply a coat of light oil (penetrating oil) to the metal to prevent rusting. Wipe off excess oil. 

3. 4-H Welding Project Tips and Suggestions: Class 3 & 4 1. All welds should be cleaned and protected from rust with paint or light oil. Plans are to be complete enough that if they were given to a welding shop, the item could be made without further instructions. Bill of materials should include a cost for all items used including steel, electrodes, paint, wheels, etc.

3 Welding Art– (SF283)– any art created using tack welds to hold the metal pieces together (examples include horseshoe projects). Type of welder, welder settings, all plans, plan alterations, and a bill for material must be attached to the article. Protect plans with a cover. If a project is designed to be outside, it is required to have an appropriate outdoor finish.

4  Welding Article- (SF282)- any shop article where welding is used construction. 60% of the item must be completed by 4-H member and notes regarding laser welding or machine welding must be included. Type of welder, welder settings, all plans, plan alterations, and a bill for material must be attached to the article. Protect plans with a cover. If a project is designed to be outside, it is required to have an appropriate outdoor finish because project may be displayed outside.

5 Welding Furniture (SF282)– any furniture with 75% welding is used in the construction. 60% of the item must be completed by 4-H member and notes regarding laser welding or machine welding must be included. Type of welder, welder settings, all plans, plan alternations, and a bill for material must be attached to the article. Protect plans with a cover. If a project is designed to be outside, it is required to have an appropriate outdoor finish because project may be displayed outside.

6 Plasma Cutter/Welder Design-(SF279)–Plasma cutters/welders allowed for detailed design(s) to butt cut into metal. 4H member will create a notebook describing the design process to create the “artwork” to butt cut into the metal. This exhibit is not eligible for entry at the State Fair.

In the notebook include:

1. A photo (front and back) of the finished project. 
2. Instructions on how the design was created; this allows for replication of the project.
3. Lessons learned or improvements to the project. 
4. Steps to finish the project. 

7 Composite Weld Project- Scoresheet SF282- 60% of the project must be welded and 40% made from other materials such as wood, rubber, etc. Type of welder, welder settings, all plans, plan alternations, and a bill for material must be attached to the article. All plans, plan alternations, and a bill for materials must be attached to the article. Protect plans with a cover. If a project is designed to be used outside, it is required to have an appropriate outdoor finish because the project may be displayed outside. 

8 Medium Welded Article (SF282)- any shop article or piece of furniture where welding is used in the construction (carts, welding table, stools, panels, troughs, etc.) 60% of the item must be completed by 4-H member and notes regarding laser welding or machine welding must be included. Type of welder, welder settings, all plans, plan alternations, and a bill for material must be attached to the article. All plans, plan alternations, and a bill for materials must be attached to the article. Protect plans with a cover. If a project is designed to be outside, it is required to have an appropriate outdoor finish because project may be displayed outside.

9 Large Welded Article (SF282)- any shop article or piece of furniture where welding is used in the construction (wagon, trailer, presses, chute, bale carrier, feeder, etc.) 60% of the item must be completed by 4-H member and notes regarding laser welding or machine welding must be included. Type of welder, welder settings, all plans, plan alternations, and a bill for material must be attached to the article. All plans, plan alternations, and a bill for materials must be attached to the article. Protect plans with a cover. If the project is designed to be outside, it is required to have an appropriate outdoor finish because the project may be displayed outside.