Summary
Describes various kinds of simple machines, showing how they can be made out of easily obtainable objects and detailing experiments that show how they make tasks easier to perform. Full description
Summary: |
Describes various kinds of simple machines, showing how they can be made out of easily obtainable objects and detailing experiments that show how they make tasks easier to perform. |
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Physical Description: |
48 p.: ill. |
ISBN: |
0516226045 |
Author Notes: |
He has published numerous children's and young adult books in a number of series including: Holt Chemistry, True Books: Science Experiments, True Books: Elements, Great Minds of Science, Out of this World, and Scientific American Winning Science Fair Projects. (Bowker Author Biography) |