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 Phys.
Science through Children's Lit...23.95 |
Investigating Solids, Liquids & Gases...23.95 |
Garbage and Our Environment..23.95 |
Science Fare: Chem. at the Table...13.95 |
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Dirt Alert: Chemistry
of Cleaning...13.95 |
Fat Chance: Chemistry
of Lipids...13.95 |
Chain Gang: Chem.
of Polymers...$17.95 |
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