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Lemelson Center's Invention at Play: Invention Playhouse
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www.inventionatplay.org/playhouse_tinker.html
science
interactive
inventions
simplemachines
invention
physics
creativity
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Lisa Durff
on 20 Jun 10
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Lisa Durff
on 20 Jun 10
Reinforce science content with this site!
<div class="cArrow"> </div><div class="cContentInner">Reinforce science content with this site!</div>
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Lisa Durff on 20 Jun 10Reinforce science content with this site!
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