Forces and Motion


Enrichment Activity for 5-11 11-14

What you need

  • Raw egg
  • Large pop bottle
  • Scissors
  • Sticky tape
  • Water
  • Salt


  1. Cut the top off the bottle and put the egg inside
  2. Fill the bottle with enough water so that the egg is well covered. Add salt to the water, stirring, until the egg floats
  3. Tape the top of the bottle back on. Drop the bottle to the floor from waist height

Results and Explanation

The egg doesn’t break because the salt water spreads the impact across the whole egg. Try dropping the egg in the bottle without the salt water.

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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