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# Chapter 4 lesson_3

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### Chapter 4 lesson_3

1. 1. Chapter 4 Lesson 3
2. 2. Essential Question <ul><li>What are conductors and insulators? </li></ul><ul><li>Hypothesis: </li></ul><ul><li>A: </li></ul>
3. 3. Testing Conductors and Insulators <ul><li>Read all procedures before starting!! (1-5) </li></ul><ul><li>What is the purpose of our lab? </li></ul><ul><li>Make a hypothesis: </li></ul><ul><ul><li>What types of objects will be conductors? </li></ul></ul><ul><ul><ul><li>What makes them conductors? </li></ul></ul></ul><ul><ul><li>What types of objects will be insulators? </li></ul></ul><ul><ul><ul><li>What makes them insulators? </li></ul></ul></ul>
4. 4. Testing Conductors and Insulators Paperclip Cardboard Graphite Nail Wire Bends without breaking Lights the bulb Appearance Test Object
5. 5. Lab Conclusions <ul><li>1.)Why is copper a good choice for connecting parts of an electrical device? </li></ul><ul><li>2.)What types of material were able to conduct electricity? </li></ul><ul><li>3.) In what other way could you have graphically represented the data you collected? </li></ul>
6. 6. Conductors <ul><li>Charges move easier in some matter than other….why? </li></ul><ul><li>Conductors are materials through which NEGATIVE charges can move easily. </li></ul><ul><ul><li>EX: Metals </li></ul></ul><ul><ul><li>Negative charges are pushed through. –simulate with students </li></ul></ul><ul><ul><li>Copper is the most common conductor </li></ul></ul>
7. 7. Insulators <ul><li>Material that resists the flow of electricity </li></ul><ul><ul><li>Ex: nonmetals </li></ul></ul><ul><ul><li>Allows us to handle and contain electricity </li></ul></ul>
8. 8. Essential Question <ul><li>What are conductors and insulators? </li></ul><ul><li>A: </li></ul>
9. 9. Vocabulary <ul><li>Conductor : a material through which heat and electricity flow easily. </li></ul><ul><li>Insulator : a material that slows the flow of heat and electricity. </li></ul>