Thames and Kosmos Crystal Growing 230 Kids code the programs using

Kids code the programs using an easy

Sarah can climb back up the ladder into the tree house

full-color manual provides instructions and explanations

Weight: 4 lbs

salts & solutions

Thames and Kosmos Crystal Growing 230 Kids code the programs usingGrow 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,