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  •  Technology / How Things Work-Are Made
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  •  Gail Saunders-Smith
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Zigzag Movement
 
Zigzag Movement
by Gail Saunders-Smith
No user ratings
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What Are Levers?
 
What Are Levers?
by Helen Frost
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$2 to $15
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at 4 Sellers
What Are Wedges?
 
What Are Wedges?
by Helen Frost
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$4 to $15
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at 4 Sellers
What Are Pulleys?
 
What Are Pulleys?
by Helen Frost
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$2 to $34
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at 6 Sellers
What Are Screws?
 
What Are Screws?
by Helen Frost
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$4 to $15
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at 3 Sellers
Vibrations
 
Vibrations
by Lola M. Schaefer, Gail Saunders-Smith
No user ratings
$15
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at 2 Sellers
How Things Move
 
How Things Move
by Gail Saunders-Smith, Don L. Curry
No user ratings
$13 to $14
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at 2 Sellers
What Are Wheels and Axles?
 
What Are Wheels and Axles?
by Helen Frost, Gail Saunders-Smith
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$7.60
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Back and Forth
 
Back and Forth
by Gail Saunders-Smith
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$51.26
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