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By combining any two visually distinct liquids, such as water and a drop of food coloring. Brownian motion is the constant motion of molecules, so if you fill a clear glass with water and then place one drop of food coloring into the water, you can watch as the food coloring diffuses throughout the water by Brownian motion.

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13y ago
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15y ago

No need of chemicals. You can see the Brownian motion also in water.

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Q: How do you perform and observe brownian motion in the lab?
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