Ferrofluid Test Tube
Ferrofluid Test Tube
Ferrofluid Test Tube

Ferrofluid Test Tube

Make your very own ferromagnetic fluid and experiment with magnets with this easy-to-use test tube kit.

Each test tube contains a bag of special magnetic powder and a strong magnet, so when you suspend the powder in a liquid, you can place the magnet near the tube and watch amazing 

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