Saturday, February 27, 2010

Home learning homework

Question:
Why does the egg float in salt water?
Answer:
Density is equal to mass over volume. The egg is denser than freshwater and floats but when salt was added to the freshwater, the freshwater increased in mass by quite much but not in volume. This results in the density of the now salt water to be greater and the egg. When it is denser, the egg floats.

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