In this book about rulers you can:
Find out about forces, levers, friction and air pressure
Discover how quickly you react
Make a catapult and much more!
The One-Stop Science series is bursting with ideas for real experiments using everyday objects and materials.
Find out about forces, levers, friction and air pressure
Discover how quickly you react
Make a catapult and much more!
The One-Stop Science series is bursting with ideas for real experiments using everyday objects and materials.
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