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Thames and Kosmos Crystal Growing

Thames and Kosmos Crystal Growing - image 1 of 4
$35.99

about this item

Grow 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, 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. See if you can grow one giant crystal, and many small crystals on the surface of a rock. 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. Learn about the structures and geometries of different crystal shapes. This kit is thoroughly tested and safe: Over one million units of this kit have sold worldwide. A full-color, 32-page experiment manual guides your experiments in crystal chemistry and Earth science.
Contains: Does not contain any of the 8 major allergens
Material: Plastic
Includes: Activity guide, instruction guide, experiment guide
Features: Multiple levels of play
Assembly Details: Assembly required
Suggested Age: 10 Years and Up
Awards: 2013 Preferred Choice Award, Creative Child Magazine
Grade Level: 8th Grade, 7th Grade, 6th Grade, 5th Grade, 4th Grade, 3rd Grade
Care and Cleaning: Spot or wipe clean
Number of Players: 1 Player
Number of Activities: 15
Educational Focus: Teaching Aid, Science
Power Source: Non-powered
Warranty: 1 year limited warranty. To obtain a copy of the manufacturer's warranty for this item, please call Target Guest Services at 1-800-591-3869.
Warranty Information:To obtain a copy of the manufacturer's warranty for this item, please call Target Guest Services at 1-800-591-3869.
TCIN: 15055521
UPC: 814743010444
Item Number (DPCI): 087-02-0290

guest reviews

1
overall: 2 out of 5 stars, see all reviews

most recent reviews

Disappointing

(would not recommend)
2 out of 5 stars
SteveW 1 year ago
Disappointing in execution. Following the instructions often failed to yield nice crystals, which is hard to understand (and I am a Ph. D. chemist). I suppose the makers are very worried about liability but there are a number of rather safe salts that could have been added. Not at all what I woul...see moreof the reviewer's review
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