Thames & Kosmos

Geek & Co. Science - Hot Ice Crystals

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  • $ 20

These amazing crystals form instantly out of a sodium acetate solution. They look like ice but they release heat upon formation. Use the solution to mold a beautiful crystalline polar bear and seal. Create an elegant crystal castle with shimmering spires. Learn about the chemical reaction that makes this happen.

2016 ASTRA Best Toys for Kids (Science)

Ages 8+