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Thames & Kosmos Crystal Growing

$39.95 $34.90
Ages 10+
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Grow dazzling crystal & conduct 15 experiments with this Thames and Kosmos Crystal Growing Kit. Investigate rapid & slow crystal growth, make your own crystal geode, display your creations in a treasure chest & more! Read More

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Grow dazzling crystal creations and conduct 15 crystal chemistry experiments with this Thames and Kosmos Crystal Growing Kit! With this experiment kit, kids can discover the different properties of four types of crystals: potassium alum crystals that are formed from regular octahedrons, sodium sulfate crystals that grow rapidly, long needle-shaped sodium acetate crystals, and plaster which is made from gypsum crystals.

With this Thames and Kosmos Crystal Growing Kit, you can:

  • investigate rapid and slow crystal growth and observe the effect on crystal structures;
  • create fun plaster shapes, such as lightning bolts, and grow layers of crystals on them
  • try to grow many small crystals and one giant crystal;
  • amaze your friends and family with your very own DIY "geode" made from plaster (a crystal geode is a hollow rock with crystals growing inside)
  • display your creations in the included clear treasure chest with a locking lid;
  • learn about the energy of crystallization;
  • and more!

Use this engaging, 26-piece classic science kit to experiment with and investigate solutions, dissolution, crystallization of solids, and the chemistry of crystal growing. Kids will love creating dozens of colorful crystals and studying the unique structures and geometries of different crystal shapes.

The included 32-page experiment manual guides curious learners through 15 crystal-growing science experiments. Along with the experiment manual, this kit includes chemicals, molds, dye, measuring cups, safety goggles, and more! All you need to supply is distilled water and a few common household items. An excellent kit for ages 12 and up!




The Thames & Kosmos Crystal Growing Kit Includes:

  • Geode mold and basin
  • Mold for shapes and figures
  • Calcium sulfate (plaster)
  • Potassium aluminum sulfate (alum)
  • Sodium acetate
  • Sodium sulfate
  • Lid remover
  • Pipette
  • Wooden spatula
  • Safety glasses
  • Dye tablets
  • Various measuring cups with lids
  • Treasure chest
  • 32-page full-color experiment manual


Warning: HAZARDOUS CHEMICAL - This kit contains hazardous chemicals. Not for children under the age of 15. For use under adult supervision. Read warning labels carefully.
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