The National Geographic Mega Science Series Glow-in-the-Dark Science Kit contains four awesome science activities that will illuminate children's imagination. This kit includes both purple and green glow-in-the-dark slime kits, allowing kids to make slime at home. Theres also incredible glow-in-the-dark putty, along with a UV light keychain that makes it possible to draw glowing images or words in the putty itself. Includes everything you need to grow glow-in the-dark crystal, along with a fluorescent wernerite specimen that glows when illuminated with a UV light. Instructions for each activity are included in the kit, as well as a complete learning guide that teaches all about crystals, slime, putty, and fluorescence. Contains four awesome science activities that will illuminate childrens imagination This kit includes two glow-in-the-dark slime kits, allowing you to make slime at home. The Glow-in-the-dark putty, comes with a UV light so kids can draw glowing images or words in