Thames and Kosmos Crystal Growing 2010 You’re on the perfect sailing

You’re on the perfect sailing excursion

UPC: 4005556192380

UPC: 4008789056757

parts of the body

playful curves enliven tactile experiences Ideal for busy

Thames and Kosmos Crystal Growing 2010 You’re on the perfect sailingGrow dozens of dazzling crystals and conduct 15 illuminating experiments with this classic science kit. Experiment with four chemically different crystals each with different properties, including potassium alum crystals that form regular octahedrons, rapidly growing sodium sulfate crystals, long needle shaped sodium acetate crystals, and plaster which is made from gypsum crystals. Mold fun plaster shapes, including stars, lightning bolts, dolphins,