Make and erupt a model of the largest volcano in our solar system Olympus Mons on Mars. It is three times taller than Mt. Everest. Learn about Martian geology and volcanology. When you are finished you have a cool volcano model to put on display! 550004 more
Make five colorful rubbery balls resembling planets in minutes. Using a spherical mold and five colors of polymer granules cast up to five rubbery planet models. Learn why the balls form and how the elasticity of the polymer material causes them to... more
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