Crystal Growing 8 years No need for glue or

No need for glue or special tools

Includes USB power cord or use with 4 AAA batteries (not included)

For fast-stacking

Game Board

" becomes an adventure

Crystal Growing 8 years No need for glue orGrow dozens of dazzling crystals and conduct 15 illuminating experiments with this classic science kit. Experiment with four chemically different crystals each with different properties, including potassium alum crystals that form regular octahedrons, rapidly growing sodium sulfate crystals, long needle shaped sodium acetate crystals, and plaster which is made from gypsum crystals. Mold fun plaster shapes, including stars, lightning bolts, dolphins,