Magnetism is an invisible force It pulls metal

Magnetism is an invisible force. It pulls metal objects which are magnetic towards a magnet. There are lots of different types of magnets. These include…. . bar magnets and… horseshoe magnets, circular magnets.

All magnets have two poles – a South pole and a North pole. You can see them marked on these pictures. South pole North pole South pole

Poles that are different attract each other. This means the invisible magnetic force will pull the poles together like this.

Poles that are the same do not attract each other. These will repel. This means they will push each other apart and will not touch or attract each other at all. Attract and repel are opposites.

Some metals are magnetic. Objects made of these metals are attracted to a magnet. Just because an object is made from metal does not make it magnetic. This can is made from aluminium. Will it be attracted The nailtoisthe magnet if we attracted toput theit underneath? magnet because iron is a magnetic metal. This nail is made from iron. Will this be attracted The aluminium can to the magnet if is not attracted to we put it the magnet. underneath? Aluminium is a metal but it is not magnetic.

Let’s look at some other objects. Can you guess which ones will be magnetic? This knife is This ball is made of steel, made of which is rubber and is magnetic. not magnetic. The pencil is The screw is not made from It’s a Yes! magnetic iron, just like magnetic. material the nail. Now, let’s see what you can remember about magnetism. A screw A pencil AAknife A paper clip ball

Are all magnets the same shape? No. There are lots of different types. Here are some of them. bar magnets and… horseshoe magnets, circular magnets.

What are the names of the poles two that all magnets have? All magnets have a North pole and a South pole North pole

What do different poles do ? Different poles attract.

What do poles that are the same do ? Poles that are the same repel.

Are all metals magnetic ? No. Only some metals are magnetic Aluminium is not magnetic. Iron is magnetic.

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