Explore the science of wheels and cogs, which are key physical science concepts.Young children will enjoy the fun illustrations and learn from the simple diagrams.The book encourages the reader to see science in action in their everyday lives.It is perfect for budding scientists who are curious about machines and how they work, and allows readers to encounter this STEM topic in an approachable way.For children progressing through book bands, it is suitable for children at Book Band 7: Turquoise. The book is part of the Simple Technology series for children aged 5+, which is perfect for Science and Design and Technology learning.Titles in the series:LeversPulleysSlopesWheels