Chapter summary

Chapter summary

Presentation: VPfjh

• Magnets have two poles - North and South.

• Some substances can be easily magnetised.

• Like poles repel each other and unlike poles attract each other.

• The Earth also has a magnetic field.

• A compass can be used to find the magnetic north pole and help us find our direction.

• The Earth's magnetic field protects us from being bombarded by high energy charged particles which are emitted by the Sun.

• The Aurorae are an effect of the Earth's magnetic field.