Grow a creepy crystal tree Create your own diamonds and make crystals that rock Discover how crystals form and foul facts about crucial crystals Contains ammonium dihydrogen orthophosphate, tree growing solution, tree card, Petri-dish, colour tablet, seed crystal, round bottle, funnel, limestone rock and Horrible Info leaflet Suitable from age 8 years and up Product Description Grow a creepy crystal tree, create your own diamonds and make crystals that rock. Discover how crystals form and foul facts about crucial crystals. Based on the bestselling books written by Nick Arnold and illustrated by Tony De Saulles. Set Contains: Ammonium dihydrogen orthophosphate 50g; tree growing solution; tree card; petri-dish, colour tablet; seed crystal; round bottle; funnel; limestone rock and leaflet