Our referral program rewards you with discounts on future purchases when you refer friends to Thames & Kosmos.
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- Crystals & Materials, Science Kits
Thames & Kosmos Crystal Growing | STEM Experiment Kit | Grow Dozens of Dazzling, Colorful Crystals! | Learn about Crystallization & Conduct Classic Science Experiments | Make Crystal Geodes | Ages 10+(Crystal Growing 2023)
- Original price was: $29.95.$17.97Current price is: $17.97.
- Don't miss out on our biggest sale of the year! Shop now and save up to 50% on products.
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Sale!
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Sale!
Add to cart
- Crystals & Materials, Science Kits
Thames & Kosmos Crystal Growing | STEM Experiment Kit | Grow Dozens of Dazzling, Colorful Crystals! | Learn about Crystallization & Conduct Classic Science Experiments | Make Crystal Geodes | Ages 10+(Crystal Growing Original)
- Original price was: $29.95.$17.97Current price is: $17.97.
- Don't miss our doorbuster deals on items. Hurry, limited quantities available!
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Sale!
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- Crystals & Materials, Fun STEM Toys, Science Brands, Science Kits
Thames & Kosmos Crystal Nightlight
- Original price was: $10.80.$6.48Current price is: $6.48.
- Upgrade your home with our home decor collection, now at discounted prices.
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Sale!
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- Crystals & Materials, Science Kits
Thames & Kosmos Earth Science Crystals, Rocks, and Minerals
- Original price was: $54.34.$32.60Current price is: $32.60.
- Save up to 40% on Thames & Kosmos Earth Science Crystals, Rocks, and Minerals styles during our end-of-season sale.
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