Penny Droplets

This Penny Droplets activity & project also includes:

Compare the number of drops of pure water and soapy water that will sit atop a penny before spilling over. This is an engaging exercise that will demonstrate the amazing property of cohesion in water molecules that results in a surface tension holding them all together. Add this to other activities that demonstrate properties of water for a wonderful water lab!

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Pros

  • Demonstration done with everyday materials
  • Fun for elementary and middle schoolers
  • Exemplifies commonly taught concepts in physical science
Cons

  • None