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Levers
     

Levers

by David Glover
 

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How are wheelbarrows, can openers, and bicycle brakes alike? Why is it easier to hold a bolt tight with a pair of pliers than with your bare hands? Why is it easier to eat a carrot with back teeth than with your front? Why is a seesaw considered a machine? This book shows you how different kinds of these simple machines are all around you to make your work and play

Overview

How are wheelbarrows, can openers, and bicycle brakes alike? Why is it easier to hold a bolt tight with a pair of pliers than with your bare hands? Why is it easier to eat a carrot with back teeth than with your front? Why is a seesaw considered a machine? This book shows you how different kinds of these simple machines are all around you to make your work and play easier.

Product Details

ISBN-13:
9781403485922
Publisher:
Heinemann
Publication date:
05/05/2006
Series:
Simple Machines Series
Pages:
24
Product dimensions:
7.50(w) x 10.10(h) x 0.20(d)
Lexile:
IG720L (what's this?)
Age Range:
7 - 9 Years

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