What does your esophagus do? How long is your small intestine? Which part of your body stores the goodness from food?
SALLY HEWITT worked as a primary school teacher for ten years before she became a full-time writer of non-fiction books for children. Sally has written over 250 books on a wide range of topics and frequently visits schools and libraries giving talks and co-ordinating workshops. She writes on a variety of subjects, including science, maths and music.