Thames and Kosmos Crystal Growing Hot Toys as well as courses from

as well as courses from Code

Conduct experiments that demonstrate how plants need water

mineral deposits

microphone

Thames and Kosmos Crystal Growing Hot Toys as well as courses fromGrow 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,