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Hair Length Experiment - Magnets vs Electricity

In this interactive classroom activity, students determine who has longer hair to represent magnets and electricity. They list their knowledge about electricity and magnetism and create a model of junk yard machines. They also explore electromagnets and test variables to create a stronger electromagnet.

robertpowell
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Hair Length Experiment - Magnets vs Electricity

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  1. With the person you’re sitting next to, decide who has longer hair! • Longer hair person = Magnets, Short hair person = Electricity • One student writes electricity and the other writes magnetism. • On my signal list one thing you know about the topic. • Switch and write another thing about the topic. Magnetism Electricity

  2. Create a class list of what we know about electricity and magnetism. Class List

  3. Title pg. 61 L- Junk Yard Machine https://www.youtube.com/watch?v=FqT2uOa1-d0&t=20s (top half) https://www.youtube.com/watch?v=XBWy9gzGGd4 (bottom half)

  4. Title pg. 61 R- Junk Yard Machine Model Create an initial model of how the junk yard machines work (top half) Models should include a Sketch Labels Explanation

  5. Create an electromagnet Using the following materials: Nail Wire Battery

  6. 62L Is the electromagnet a magnet? What is your evidence?

  7. 62 L How could you create a stronger electromagnet? Test one variable at a time

  8. 62 L/R How could you create a stronger electromagnet? Test one variable at a time...Example:

  9. Title pg. - Junk Yard Machine Model Create a final model of how the junk yard machines work (bottom half) Models should include a Sketch Labels Explanation

  10. What is an electromagnet? Notes 62L/R temporary magnet made by wrapping a current-carrying wire around an iron core

  11. 62L/RHow do the number of coils affect the number of pins attracted to the electromagnet?

  12. 62L/RHow does the size of the current affect the number of pins attracted to the electromagnet?

  13. What are two ways to make a stronger 62L/R electromagnet? - increase the number of coils -increase the amount of current

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