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# Circuits

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simple circuits

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### Circuits

1. 1. Circuits Just what is a circuit?
2. 2. <ul><li>It’s like a circle </li></ul>
3. 3. <ul><li>It’s like a race track that we run around </li></ul>
4. 4. <ul><li>It’s like a board inside a computer </li></ul>
5. 5. <ul><li>It’s to do with turning lights on and off </li></ul>
6. 6. What IS a circuit? <ul><li>When we turn a light on we close a circuit to let electricity flow to the bulb and light it up. </li></ul>
7. 7. Light Circuit <ul><li>A light circuit is usually made up of battery, wires and a bulb. </li></ul>
8. 9. <ul><li>The circuit must be connected in order for it to work. </li></ul>
9. 10. Problem!! <ul><li>If the circuit is on all the time then eventually the bulb will burn out! </li></ul>
10. 11. Solution <ul><li>We put a switch into the circuit so that we can turn it on and off. </li></ul>
11. 13. So there we have it … <ul><li>A light circuit is used to bring electricity (power) to the light bulb to turn it on. </li></ul><ul><li>We need to have a switch in the circuit so that the bulb doesn’t burn out. </li></ul>
12. 14. Your task … <ul><li>Using the Brainbox equipment make a simple circuit with a bulb, a battery holder (and batteries) and a switch. </li></ul>
13. 15. All done? <ul><li>Show your circuit to a buddy </li></ul><ul><li>Get your buddy to take a photo of you and the circuit. </li></ul><ul><li>Tell your teacher that you have completed the task. </li></ul><ul><li>Well done! </li></ul>