The Horrible Science Kit is perfect for little Dr. Frankensteins who like a littleeeew!to their favourite subject!Containing 50 g of ammonium dihydrogen orthophosphate (the cool way to say the crystal-growing stuff!), tree-growing solution, tree card, petri-dish, colour tablet, seed crystal, round bottle, funnel, limestone rock and instructions, start growing your own creepy crystal tree. Read all about them in the disgustingly-interesting Horrible Science information leaflet!From ghoulish science to freakish facts, create and understand some foul crystal facts, their importance and other revolting facts!Includes ammonium dihydrogen orthophosphate (50 g), tree-growing solution, tree card, petri-dish, colour tablet, seed crystal, round bottle, funnel, limestone rock and instructionsFor children aged eight years and overOveralls requires to protect clothingensure workspace is coveredHorrible Science Creepy Crystals Kit