The Science Works series use cartoon style illustrations and lively narrative text to make key topics in science both accessible and engaging.Have you ever thought about what keeps your feet on the ground? Or why things always fall downwards? The answer is a mysterious force called GRAVITY. In this revised edition from Jacqui Bailey, we follow the story of an astronaut on his first trip into space. There he experiences what life is like without the pulling force of gravity. This book also contains an experiment, more great facts to know, useful websites and an index. Ideal for readers age 6+.