Grow blue sparkling crystals overnight from a safe solution of potassium aluminum sulfate. Extract the largest crystal shard, redissolve the remaining crystals, and repeat the crystal formation process to grow a larger, more striking crystal. The kits includes all the materials and tools you need to grow a single crystal, as well as a small hexagonal storage box in which to keep your crystal safe.
Check out this high-quality gyroscope!
Use this laser pointer for any professional presentation!
This magic bird defies gravity before your very eyes!
Build a robot that's an artist too!
Ever wonder how to survive in the wilderness? These cards can help!
Build your own windmill generator kit by recycling a plastic bottle!
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