SEE GENERAL STEM RULES
ELECTRICITY
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MAGIC OF ELECTRICITY – UNIT 1
* Designates County Project Only – not eligible for State Fair Competition.
*H870901 Bright Lights - Create your own flashlight using items found around your house. Flashlights should be made of items that could be recycled or reused. No kits please.
*H870902 Control the Flow – Make the 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.
*H870903 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.
*H870904 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. For classes 115- 117 please refer to 4-H manual Electric 2 Investigating Electricity.
*H870905 Quiz Board or Stead Hand Tester - game will be judged for usefulness, craftsmanship and wiring skill. Include battery or power supply to operate exhibit. Questions on the quiz board can deal with any topic. For instructions, contact the extension office.
*H870906 Poster - should exemplify one of the lessons learned in the Magic of Electricity project. Posters can be any size up to 28” x 22”.
*H870907 CASE OF THE SWITCHING CIRCUIT 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. 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.
*H870908 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-by 6-board 6 inches long, 1/8 inch 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 ¼” drill bits, rocket engine igniter, additional drill bits matched to holes for two switches. You must successfully build a rocket launcher and light two rocket igniter 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.
*H870909 STOP THE CRIME – BUILD AN ALARM using the following materials: On-off push button switch, mercury switch, buzzer-vibrating or piezoelectric, 9-volt battery holder, 4 inch by 4 inch by 1/8 inch 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 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.
*H870910 POSTER - should exemplify one of the lessons learned in the Magic of Electricity project. Posters can be any size up to 28” x 22”.
H870001 Electrical Tool/Supply Kit (SF224) – 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 (SF225) – 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 (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
H870004 Poster (SF227) – Poster should exemplify one of the lessons learned in the Wired for Power Project.
H870005 - Electrical/Electronic Part Identification - (SF228) - 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.
H870006 - Electronic Display - (SF229) - Show an application of one of the concepts learned in the Entering Electronics project. Examples include: components of an electronic device (refer to p. 35 of the Entering Electronics manual).
H870007 - Electronic Project - (SF230) - 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 (SF231) - Poster should exemplify one of the lessons learned in the Entering Electronics Project. Posters can be any size up to 28 inches by 22 inches.