A set of 10 pH Buffer Powder packets. Includes 5 pH 4.00 packets and 5 pH 6.86 packets. These are used to calibrate pH meters, and can also be used to monitor pH levels in aquariums or swimming pools.
This adapter-powered butterfly uses Flexinor wires to create a realistic visual effect!
Exciting magnet exploration for ages 8 and up!
The Star-Ball Magnetic Puzzle is the perfect creativity tool for innovators, artists, writers, students, and you!
A beautiful desk or bookshelf accessory for the reading fanatic in your family!
Get one of the craziest and coolest kaleidoscopes around!
Provides the power to execute all the basic electrostatic demonstrations on an energetic and dramatic scale with up to 350,000 volts!
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