Grow real green crystals at home with this chemistry experiment kit for kids aged 10+. Includes everything needed for a complete crystal-growing experiment.
Kosmos Green Crystals – Grow Your Own Crystal Experiment Kit
The Kosmos Green Crystals kit lets children grow their own sparkling green crystals at home. It combines a hands-on chemistry experiment with a fascinating result that kids can proudly display.
Grow real green crystals step by step with the included crystal-growing solution
Introduces core chemistry concepts like saturation, crystallisation, and molecular structure in a playful way
Complete experiment kit with all necessary components — no additional materials needed
Suitable for young scientists aged 10 and up who enjoy hands-on discovery
What makes the Kosmos Green Crystals kit special
Unlike a simple decoration, this kit guides children through a genuine scientific process. They learn how crystals form from a supersaturated solution and observe the growth stages over several days — turning patience into a rewarding, tangible result.
Ideal for curious young minds
Perfect for children who are curious about chemistry and love experimenting. The kit provides a safe, guided introduction to crystallography and solution chemistry that builds confidence in scientific thinking.
How to use the Kosmos Green Crystals kit
Prepare the crystal-growing solution as instructed
Place the seed crystal or starter piece into the solution
Wait and observe as green crystals grow over several days
Carefully remove and dry the finished crystal for display
Kosmos is a German brand specialising in educational experiment kits and science toys for children. The brand focuses on making STEM subjects accessible and engaging through hands-on learning products.
The kit contains a crystal-growing solution, a seed crystal or starter piece, and a detailed instruction manual with step-by-step experiment guidance.
The kit is recommended for children aged 10 years and up, as it involves handling chemical solutions under adult supervision.
Crystals typically begin forming within hours and reach a visible size over several days, depending on the solution concentration and room temperature.
Yes, the kit contains chemical substances that should be handled with adult supervision, especially during solution preparation.
Yes, once the crystals are fully grown and dried, they can be kept as a permanent display piece or decorative object.
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