Wednesday, 20 July 2011

How do we determine if an egg is fresh?

Steps:

(1) Drop the egg in a glass of water and observe if it floats or sinks.

(2) A fresh egg will sink in water while an egg that is less fresh will float.

What Teacher Serena Says...
As the egg gets less fresh, the air space in the egg increases. Hence the egg becomes buoyant and floats.

~ Serena's Greenhouse

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