In this category 4-H members have the opportunity to create information exhibits about the different aspects of electricity. Through involvement in this category 4-H members will be better educated about electricity and be able to present their knowledge to others.
- 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.
- Several classes require a display board which should be a height of 24 inches and not to exceed ¼-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 ¾ inch of the top or bottom of the board. (Example: Woodworking & Electricity).
- Fabricated board such as plywood, composition board, or particle-type lumber may be used for demonstration displays.
- Demonstration boards should include an overall title for the display, plus other necessary labeling.
- 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 over. The reports should be attached securely to the display.
Division 870 – Electricity
Magic of Electricity Unit 1 (No State Fair)
H870011 Demonstration Board – Exhibit is to be prepared on a board that is 1/4" thick and 24" high x 32" wide. Exhibit may include a simple switch, simple fuse, and/or conductors/non-conductors. Be sure to include the appropriate labeling.
H870012 A Poster – that describes and explains any one of these concepts related to electricity: electrical materials, appreciation of electricity, open and closed switches, and conductivity of materials. (change to: should exemplify one of the lessons learned in the Magic of Electricity project. Poster can be any size up to 28” x 22”)
H870013 Design a Project – that demonstrates the capacity for conductivity of materials.
Investigating Electricity Unit 2 (No State Fair)
H870014 Build a Circuit Board – Exhibit should be a series or parallel circuit.
H870015 Build a Burglar Alarm
H870016 Build a Rocket Launcher
H870017 Telegraph Station – exhibit must include one telegraph key and one telegraph sounder. The telegraph must be attached to a wooden base and wired to a battery to demonstrate its operation. Label the display and the major components.
H870018 Electric Toy Motors – working model of an electric motor. The motor is to be of the 4-H'ers designed should have the major parts labeled. A short, written description of how the motor works is to be included in a clear protective cover. No pre-manufactured electric motors will be accepted.
H870019 Toy Electric Motor Converted to DC or AC Generator – exhibit is to consist of a toy electric motor shown in Unit II, converted to use as a DC or AC generator. Generator should be exhibited on base including a battery and a light bulb or Galvanism to demonstrate its operation. Title the exhibit and label the major parts.
H870020 A Poster – describe and explain the purpose of the National Electrical Code.
H870021 A Poster – illustrate how an electrical usage meter or a main service panel for a building works.
sfH870001 Electrical Tool/Supply Kit – (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. Container should be appropriate to hold items.
sfH870002 Lighting Comparison – (SF226) - Display studying the efficiency of various lighting (incandescent, fluorescent, halogen, Light Emitting Diodes, etc.). Exhibit could be a poster, display or an actual item.
sfH870003 Electrical Display/Item – (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. Exhibit could be a poster display, or an actual item.
sfH870004 Poster – (SF277) - should exemplify one of the lessons learned in the Wired for Power Project. Posters can be any size up to 28 inches by 22 inches.
sfH870005 Electrical/Electronic Part Identification – (SF226) - Display different parts used for electrical/ electronic work. Exhibit should show the part (either picture or actual item) and give a brief description, including symbol of each part and its function. Display should include a minimum of 10 different parts.
sfH870006 Electronic Display – (SF229) - Show an application of one of the concepts learned in the Electronics project. Examples: components of an electronic device (refer to p. 35 of the Electronic manual).
sfH870007 Electronic Project – (SF229) - Exhibit an electronic item designed by the 4-H'er or from a manufactured kit that shows the electronic expertise of the 4-H member. Examples include: a radio, a computer or a volt meter.
sfH870008 Poster – (SF277) - should exemplify one of the lessons learned in Entering Electronics Project. Posters can be any size up to 28 inches by 22 inches.