Thames & Kosmos - Crystal Growing Kit Sylvanian Families Once it’s up and running

Once it’s up and running

Wild Republic Polybags feature an extensive collection of animal species which help stimulate creativity for children of all ages

Connected together or placed separately

hands-on experiments and building projects

Thames & Kosmos - Crystal Growing Kit Sylvanian Families Once it’s up and runningGrow 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,