Simple electric circuit 2

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1. HOW TO CONSTRUCT A SIMPLE ELECTRIC CIRCUIT

2. Materials Needed wooden base Light Bulbs lamp holder Battery holders Simple Switch Connecting wires

3. Steps to Construction Step One - Use screws to mount switch, battery holder and lamp to wooden base. Step Two - Using the wire make the circuit connections as shown . Please be careful loosing screws and stripping the end of the wires! Step Three – Place a D battery in holder, lower the switch and watch your light shine

4. Conductors and Insulators Identify conductors and insulators around you. It is important to know what materials are conductive and what materials are not. The test is simple. Open the switch and place the object between the poles of the switch. If the light comes on, then the object is conductive. You may try this with metals (coins, paper clips, nails, etc.) and non-metals (glass, plastic, stone, wood, etc.)

5. Simple test Materials Directions Simple electric circuit Comb Fabric Metal Spoon Rock Electrical Tape Copper wire Turn off switch Remove wire from switch going to lamp. Replace with additional wire Attach object to the two wires between lamp and switch Turn on Switch – be sure not to touch object

6. Results Fill out chart: Object Light on Light off Conductor or Insulator Comb Fabric Metal spoon Penny Rock

7. Results Fill out chart: Object Light on Light off Conductor or Insulator comb insulator fabric insulator metal spoon conductor penny conductor rock insulator

8. Final Thoughts How does a flashlight work?