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Super Secret Test Tubes Marble Mania
$499
Unit price
/
Unavailable
New!!! Available summer 2011
Who knew science could be such Monstrous Fun???
Using the expanding polymers provided, your own Growing Brain in a bowl! The kit also includes our secret Growing Powder. Discover what it has in common with the growing brain and with baby diapers! Use it to make water disappear. How cool is that?
Ages 4 and up
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