Forces and Motion

Spinning Eggs

At home for 11-14 14-16

M&M - Spinning Eggs

What you need

  • A raw egg
  • A hard-boiled egg


  1. First spin the hard-boiled egg
  2. Stop it and let go immediately
  3. Watch what happens
  4. Now spin the raw egg
  5. Stop it and let it go immediately

Results and Explanation

Unlike the cooked egg, the raw egg starts spinning again. This is because the yolk and the white aren't attached to the shell in a raw egg, and so carry on moving when you stop the outside. Get a friend to mix up the eggs and use the trick to tell them apart.

These experiments have not been specifically safety tested for home use but we believe them to be safe if the instructions are followed. Adult supervision or direction is recommended as appropriate. All experiments are carried out at your own risk.

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