Small but many

Your cells are so small that you need a microscope to see them. Your body is made of an extremely large number of these tiny cells. Because all cells are about the same size, the difference between a large and a small person is that the big person has more cells.

Too many to count

You have about 50 to 100 million million cells in your body.

All the same size

All animal cells are about the same size. An ant just has fewer cells than an elephant.

The microscopic world of cells

Scientists use different types of microscopes and many different highlighting and colouring techniques to look at cells.