4M- CRYSTAL SCIENCE (US)Conduct chemical experiments to grow your own aquamarine crystal, glow in the dark moon crystal cluster, and a crystal snow tree, Learn how crystals are formed from solutions. Display them in a collection. SKU: 3917 Categories: 4M, Crystal Growing Description 8+Related products 4M – GLOW SOLAR SYSTEM MOBILE MAKING KITLet your imagination run wild to outer space, mllions of light years away. Hang your own solar system in your bedroom, it glows and revolves just like the real one does. 4M – METAL DETECTOR ROBOTBuild your own metal detector robot. Hunt for buried treasure by driving the robot back and forth with the remote control. When you hear it beep, you have found something metallic!. You can also detach the metal detector unit, and use it hand held for household metal detecting. 4M – DIG A MAMMOTHContains a mammoth skeleton about 21cm long when assembled.