Grow your own 4M colourful crystal. A fun sparkling chemistry experiment. Includes: a large bag with crystal base compound, small bag of colour seeding mixture, clear container with cover, spoon and detailed instructions. Age 10+ years
Grow your own 4M colourful crystal. A fun sparkling chemistry experiment. Includes: a large bag with crystal base compound, small bag of colour seeding mixture, clear container with cover, spoon and detailed instructions. Age 10+ years