How Things Work

How Things Work

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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.

Packed with lively illustrations and fascinating flaps, these books are bursting to reveal amazing secrets.