Thames & Kosmos Toy Science Spark Crystal Growing by Thames Kosmos
Thames & Kosmos Toy Science Spark Crystal Growing by Thames Kosmos

Spark Crystal Growing by Thames Kosmos


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Use chemistry to grow colorful crystal overnight.  This kid uses a safe solution of potassium aluminum sulfate.

Includes 4 packets of crystal growing salt and 2 different dyes, red and blue.  You can grow a variety of sizes and colors.

7.4" x 8.8" x 2.3"

Ages 8 and up

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