Have you ever wondered just what happens when you flush a toilet, or what goes on inside a light bulb? Do you want to know how a digger scoops up soil, why boats float and what keeps planes up in the air? Lift the flaps to see inside how things work--from everyday inventions to massive machines.
Series: See Inside Board Books
Packed with lively illustrations and fascinating flaps, these books are bursting to reveal amazing secrets.
