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Perfect science fair project!! Enough material to grow 3 trees
Crystal Growing Tree
Instructions with 17 scientific questions and answers
For Ages 5+
Assemble your own DC motor and learn by doing!
This new model comes with a sturdy cast metal base, testing spring, metal scale, four 20-gram weight...
Contains 15 specimens, approximately 1 1/2″ x 1 1/2″, number-coded in a compartmented co...
These sets are designed to teach students the concepts of force and mechanical equilibrium as they r...