Dimensions
191 x 209 x 3mm
Simple Science.
Illustrated by Mike Gordon.
How can a pulley help you to lift a heavy weight? Why are two pulley wheels better than one? Where will you find a pulley in a tall building? Full of simple experiments, this lively and informative book helps you to find out the answers and the pictures give you lots of laughs along the way!
Each book in the 'Simple Science & Technology' series contains notes for parents and teachers.
