1) The document discusses how to make electromagnets and temporary magnets using materials like iron nails, batteries, and bar magnets. 2) It also explains different ways to demagnetize magnets such as hammering or dropping them, as well as which materials are and are not attracted to magnets. 3) The key materials that are attracted to magnets include iron, nickel, cobalt, and steel, while plastic, glass, and diamonds are not.

1. All about magnets Done By Jun Jie

2. How to make electromagnets and temporary magnets.Section overviewIn this section we will learn how to make electromagnets and temporary magnets.

3. How to make a electromagnet Materials needed : An iron nail , a battery , two circuit. How to do it :1)Connect the circuit to the battery. 2)Coil the circuit around the iron nail, and finally you have made your electromagnet.

4. How to make a temporary magnet using the stroking method Materials needed : An iron nail and a bar magnet. How to do it : 1)Stroke the iron nail 20 times in the same direction , and finally your temporary magnet is done.

5. Ways to make a magnet lose its magnetismSection overviewWe will learn how to make a magnet lose its magnetism.

6. First Way to make a magnet lose its magnetism Materials needed : 1)A hammer 2)A bar magnet How to do it :1)Hammer the bar magnet 2)Put it on top of a pile of paperclips and it will not attract any of the paperclips.

7. Second way to make a magnet lose its magnetism Material needed: A bar magnet How to do it: 1)Drop the bar magnet on the floor several times.2)Put it on top of a pile of paperclips and observe that none of the paperclips are attracted to the magnet.

8. Which materials are able to be attracted to magnetsSection overviewIn this section we will learn which materials are attracted to magnets.

9. Materials that can be attracted by the magnet Nickel Iron Cobalt Steel

10. Materials that are not attracted to magnets Plastic Glass Diamond

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