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Magnets

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bayle
18 diapositives · 1.1K Views · May 21, 2012

Magnets. Magnets are everywhere. . If you have ever used a computer, microwave oven, or stereo speakers, you have used magnets!. In fact you live on the biggest magnet around … . Earth!. Magnet Facts. 1. Magnets are made from a rock called magnetite or lodestone. .

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Magnets
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  1. Magnets

  2. Magnets are everywhere. If you have ever used a computer, microwave oven, or stereo speakers, you have used magnets! In fact you live on the biggest magnet around…. Earth!

  3. Magnet Facts 1. Magnets are made from a rock called magnetite or lodestone. 2. Magnetite attracts iron and steel.

  4. 3. Magnets have two poles - the North Pole and the South Pole. 4. On a bar magnet the poles are on the ends.

  5. 5. Magnets are strongest at the poles.

  6. 6. Attract means to pull something to you. Magnets pull things made of iron and steel.

  7. 7. Opposites Attract The North Pole is attracted to the South Pole. The South Pole is attracted to the North Pole.

  8. 8. Repel means to push away. A North Pole repels another North Pole.

  9. 9. A force is a push or a pull. 10. A magnetic force is the pulling force of a magnet.

  10. Find items that are attracted to magnets.

  11. 10. A compass uses a magnet to tell direction. A compass has a magnet inside that moves the arrow. The arrow on a compass always points north.

  12. 12. Magnets can have different sizes and shapes.

  13. 11. A magnet’s force can pull through other objects. Try this: 1. Fill a clear cup with water. 2. Put a paper clip inside the cup of water. 3. Use a magnet on the outside of the cup. Can you move the paper clip?

  14. Magnet Review What did you learn? 1. Magnets are made from ______________. a. magnetite - lodestone b. vitamins with iron c. a compass 2. Magnets attract things made from ___________. a. rocks b. iron c. fish

  15. 3. Attract means ______________. a. a push or a pull b. to push something away from you c. to pull something to you 4. A magnet’s force can pull through other objects. a. True b. False 5. Magnets have 3 poles. a. True b. False

  16. 6. On a bar magnet the poles are ____________. a. in the middle b. on the ends 7. Repel means ___________. a. to push something away from you b. to pull something to you c. A push or a pull 8. Opposites attract - North Pole is attracted to the South Pole. a. True b. False

  17. 9. A magnetic force is the ____________. a. pushing force of a magnet b. pulling force of a magnet 10. The North Pole is attracted to ___________. a. Santa Claus b. another North Pole c. the South Pole. 11. A compass uses a magnet to tell direction. a. True b. False

  18. 12. Name three things that a magnet is attracted to. Did you think about these items?