Grow green 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.
Start a great hobby in electronics with this state of the art electronics project lab!
Build over 100 exciting electronic projects with this easy to use kit!
This kit will get your paper plane ready for takeoff!
This SUPER Erector Construction set is one of the best you'll find anywhere!
The LCD Digital Microscope II is a professional biological microscope at an affordable price. Up to 1600X with digital zoom!
This great rock tumbling kit comes with everything you need to polish stones and gems!