Forces are at work all around you. They affect things as small as a toy car and as big as the earth! Forces make things move, but they also make things stop. Some forces are very strong, but other forces are so weak, you can't feel them at all. But what are forces, and how do they work? Read and find out!Bradley, Kimberly Brubaker is the author of 'Forces Make Things Move', published 2005 under ISBN 9780064452144 and ISBN 006445214X.