Jessie Rees Foundation: Charities Started by Kids!

Jessie Rees Foundation: Charities Started by Kids! — page 1
some cells are better than others The human body is made up of more than 30 trillion cells Cancer is a disease that gets in the way of healthy cells It happens when abnormal cells grow and spread too quickly Bad cells can take over different parts of the body or grow into tumors Tumors happen when these cells group together in a lump or mass Healthy cells can grow and divide quickly as well but they know when to stop 4