The Glow In The Dark Geode Kit contains enough material to make 2 glow in the dark Geode halves, about the size of a baseball. You will even have some material left over to grow some more crystals. The Glowing Geodes take a few days to form in the mold after the ingredients are mixed. Obviously, these are not naturally occurring rock geodes but they look similar and besides, these glow in the dark! This Geode kit is a good introduction to chemical mixing and science procedures. Hands-on fun for everyone. Ages 9+. |