Cultivate a color-customizable crystal you can grow in the comfort of your own home! The kit includes everything you need to get started and to view your crystal's progress as it slowly shapes and forms to its own unique size and pattern. Includes multiple color packets, meaning that mixing different amounts of each color packet produces differently colored crystals! Get a few kits and create a rainbow crystal garden! Also includes a viewing jar in which to let the crystal grow. The finished crystal should measure about 5cm (2in) x 4cm (1.5in), though the size, shape, and color will vary according to experimental conditions.
Great reference card for chemistry and physics students.
This simple but amusing magnetic toy will keep you busy for hours!
This glass Erlenmeyer mug makes an excellent gift!
Cool new Pi tee featuring ultra soft and light blue 100% cotton shirt.
NEW 2016 DESIGN! This hip red tee features Pi to 1000 decimal places on an ultra soft 100% cotton shirt.
The Hoberman Sphere expands and contracts with a magical motion so fluid and simple that kids can't help but play with it for hours.
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