This experiment demonstrates how water at different temperatures has different densities, creating beautiful layering effects. You'll see how warm and cold water interact and learn about density ...
For most people, a thermos is a simple object used to keep tea hot or water cold. Yet its origins lie not in kitchens, ...
Nancy Bullard on MSN
Why red and blue water stay separate instead of mixing
In this video I walk you through a simple density experiment using hot and cold water dyed red and blue. I show why the ...
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