Grow your own crystals by adding vinegar and colouring to the stones provided.
36 in stock
Children love to grow their own crystals and can do so by following the instructions. Within a few days they will have grown their very own crystal garden while learning some simple chemistry in a fun and educational way (acid+base = salt+water).
Each pack contains limestone pieces which, when placed in distilled white vinegar (available from all supermarkets) and the instructions followed, produce real crystals similar to those shown below. Different colour crystals can be grown by adding a few drops of food colouring to each bowl of vinegar and limestone.
Completely safe for children when instructions are followed.