KOSMOS Crystal-growing experiment kit 645601

This KOSMOS crystal growing kit is a science experiment set designed for children aged 10 to 14. It lets you grow impressive crystals at home using potassium aluminium sulphate (alum) and plaster of Paris, creating a range of different crystal shapes.

The kit includes several portions of alum and gypsum, red, blue and green coloured paper, tweezers, a pipette, a spatula, a large lidded measuring cup, three small lidded cups in red, blue and yellow, a crystal geode mould, a crystal figure mould, a treasure chest and an illustrated instruction booklet. Distilled water is needed for the experiments and is not included.

The set is intended for indoor use and should be used under adult supervision. Keep it away from young children and animals.