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Color Changing Goldenrod Paper
This paper turns bright red in bases and returns to bright yellow in acids.
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Eco-celli Barometer - allow additional shipping time
No More Mercury!! The Eco-celli Barometer is a must in every science classroom! It is safe, accurate, and easy to use!
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Electronic Thermometer
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Infra-Red Thermometer
These amazing thermometers measure the temperature of an object without ever touching it.
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My Little Weatherbuddy
Made with special thermochromic ink, the weather buddy clings to the outside of your window and lets you know how to dress for the day.
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Red Cabbage Extract
A safe and easy Universal Acid/Base Indicator, without that awful cabbage smell.
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