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3553e

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3553e

Invention Help!

I need to make a invention for science that uses a simple machine. I only have 2 class periods to make it, so it can't be too hard. I also have to solve a problem that would help us in everyday life....
03:53 Sun 26th Apr 20091 answer, last by Mortartube 15:34 Sun 26th Apr 2009

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