Spinning an Egg

This is a simple experiment that teaches children about the effect of a liquid interior on a rotating object versus that of a solid core object. Use two eggs for this experiment. Boil one egg to make a hard-boiled egg. Allow the egg to cool. Spin the two eggs and time them with a stopwatch. Have the child determine which egg has spun the longest. Have the child explain why she thought the one egg spun longer than the other.

Super Science Fair Projects for Third Grade Students

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