Magnets

1. Examples of Non-Magnetic materials:Aluminium,Copper

1.1. Non-Magnetic materials cannot be turned into a magnet.

2. Magnetism in a magnet weakens by some causes

2.1. Heated over a flame

2.1.1. Hammered

2.1.1.1. Dropped

3. We can make magnets using magnetic materials

3.1. To make a magnet we have to stroke a magnetic material using a bar magnet more than 20 times.

3.1.1. To make an electromagnet we have to coil a magnetic material and connect the coil to the batteries.

3.1.1.1. To strengthen the electromagnet we can add more batteries or coil it around a lot of times.

4. There is two types of materials in the lesson of magnets.

4.1. Magnetic materials

4.1.1. Non-Magnetic materials

5. Magnetic materials attract magnets

5.1. Examples of magnetic materials:Iron,Steel

6. Non-Magnetic materials do not attract to magnets.

7. There is only two poles in a magnet.

7.1. North

7.1.1. South

8. Magnets have a strength called as magnetism

8.1. Like poles repel

8.1.1. Unlike poles attract