Connor is learning numbers at school. Connor can move the numbers round. The numbers stick to a metal board. The numbers do not fall off. The numbers have _______ inside them.

Studying forces in science at school you will have used simple magnets. They are fun to use. You can pick up things made of iron and steel. At home, you may have fridge magnets - they use force to stick to the door of the fridge - as long as it contains some iron or steel. Magnets are very useful and simple to use.