Content
Awards
Purple - $3.00 Blue -$2.50
Red - $2.00 White - $1.50
ELECTRIC POSTERS - 4-H electricity related posters (Classes 01 and 02) are to be entered in the engineering area for exhibiting and judging. Refer to Department 152, Section 152 - Posters for general requirements.
UNIT 1 - MAGIC OF ELECTRICITY
CLASSES
H870020L Bright Lights - 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.
H870021L Control the Flow - 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.
H870022L Conducting Things - 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.
H870023L Is There a Fork in the Road - 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.
UNIT 2 - INVESTIGATING ELECTRICITY
CLASSES
H870024L Case of the Switching Circuit - Use the following items: two D cell batteries, two battery holders, light bulb, bulb holder, a 30" x 60" piece of cardboard, six brass paper fasteners and approximately two feet 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.
H870025L Rocket Launcher - 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 feet of 18 or 22 gauge stranded wire, 4 alligator clips, 2 x 6 board 60" 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.
H870026L Stop the Crime - 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, two feet 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.
UNIT 3 - WIRED FOR POWER
CLASSES
H870001 Electrical Tool/Supply Kit - 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.
H870002 Lighting Comparison - Display studying the efficiency of various lighting (incandescent, fluorescent, halogen, Light Emitting Diodes, etc.). Exhibit could be a poster display, or an actual item.
H870003 Electrical Display/Item - 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.
H870004 Poster - Should exemplify one of the lessons learned in the Wired for Power Project. Posters can be any size up to 28" x 22".
UNIT 4- ELECTRONICS
CLASSES
H870005 Electrical/Electronic Part Identification - 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.
H870006 Electronic Display - Show an application of one of the concepts learned in the Electronics project. Examples include components of an electronic device (refer to p.35 of Electronic manual)
H870007 Electronic Project - Exhibit an electronic item designed by the 4-H’er or from a manufactured kit that shows the electronic expertise of the 4-H’er. Examples include: a radio, a computer, or a voltmeter.
H870008 Poster - Should exemplify one of the lessons learned in the Entering Electronics Project. Posters can be any size up to 28" x 22".