Children love to grow crystals, and this is a great little starter kit for trying it at home. Kit comes with supplies to make crystals of hard to find materials, Contains Potassium Aluminum Sulphate. Contents: Instruction sheet Plastic rocks Stick Potassium Aluminum Sulphate Container and sticker Sand paper Discovery Tubes are compact science kits, designed to provide easy experiments and entertaining lessons using the items in the tube and common household goods. They're fantastic for school projects, day care providers and summer camps.

Spies and Criminals beware! Discover the secrets that Police detectives use to catch criminals. This kit contains all you need to lift, record, and identify fingerprints just like a real detective. A hands on introduction to the fascinating world of forensic science. Contents: Instruction sheet Feather Magnifier Finger sticker Finger print powder Container and sticker Discovery Tubes are compact science kits, designed to provide easy experiments and entertaining lessons using the items in the tube and common household goods. They're fantastic for school projects, day care providers and summer camps.