Learn all about the science of machines with Mo the Monster and his friends in this fun first science book for children aged 5+. Mo and his friends want to build a clubhouse but they have a lot to learn about forces and how machines work before it will be ready. The gang soon discover levers and wedges, pulleys, wheels, screws and much more. If a monster can understand science, anyone can! Join Mo the Monster as he discovers the basic principles of science. Along the way, Mo is kept focused (monsters are notoriously easily distracted) with the help of simple, clearly presented information, plenty of questions to answer and lots of science puzzles and activities. The funny, colourful illustrations offer lots of scope for humour and interest to keep children engaged while they learn. Aimed at readers aged 5+. Titles in the series : Energy/Forces and Magnets/Habitats/The Human Body/Life Cycles/Light and Shadows/Machines/Materials/States of Matter/Plants/The Seasons/Time Contents Mo's clubhouse Machines and forces Clubhouse plans Transporting materials Levering rocks Measuring and cutting Screwing together the frame Lily gets in gear! Planks and pulleys Different kinds of lever Rescuing Rory! Walls and windows Monster marshmallows Glossary Books to read and places to visit Answers.