We will be relocating to a bigger warehouse on 27th September! As a result our despatch area will be closed from that date and your orders will again be processed on the 29th September. We apologise for any inconvenience and thank you for your patience and support.
Thames & Kosmos Crystal Growing
Mold fun plaster shapes, including stars, lightning bolts, dolphins, and pyramids, and grow layers of crystals on them. Use dyes to form colored crystals, and mix the dyes to grow a rainbow of custom colored crystals. Display your crystal creations in a clear treasure chest with a locking lid.
Mold your own geode a hollow rock with crystals growing inside and create a beautiful crystal cavern inside. Experiment with growing crystals rapidly and slowly, and observe how that affects the crystal structures.
Measure how the crystallization of solids out of a solution, and the dissolution of crystals back into solution, affect the temperature of the solution. Learn about the energy of crystallization. Investigate solutions, crystallization, and the chemistry of crystal growing.
Age: 10 +
- Geode Mold and Basin
- Mould for Plaster Shapes
- Plaster (calcium sulfate)
- Potassium aluminium sulfate (50 g packet)
- Potassium aluminium sulfate (4 x 20 g packet)
- Sodium Acetate
- Sodium Sulfate
- Lid Remover
- Wooden Spatulas (3)
- Dye Tablets
- Measuring cup, 200 mL (2)
- Measuring cups, 30 mL (3)
- Measuring cup lids (4)
- Treasure Chest
- Illustrated user's manual.
- Chemistry of crystal formation
- Rocks and minerals
- Physical and chemical changes
|Age Group||9-10 Years, 11-12 Years, 12+ Years|