Get the science behind this here: http://www.stevespanglerscience.com/lab/experiments/rainbow-test-tube
Grow and color jelly-like crystals, then layer them in a plastic tube so you can see the colors blend and change. Our baby soda bottle “test tube” makes it easy to see the scientific results, and it’s small enough to carry your “rainbow” wherever you go! Included is a science activity guide to teach you all about crystals and color!
Want more experiments like this? Check out http://www.stevespanglerscience.com/product/naked-eggs-and-flying-potatoes
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? 2013 Steve Spangler Science all rights reserved
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