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Do It
photo of a butter, knives, and a water glass grab
  • two slices of cold butter
  • a metal knife
  • a plastic knife
  • a glass of warm water
  1. Poke each knife into a piece of butter.
  2. Put the handles of the knives into the glass of warm water with the butter slices sticking up in the air, and wait. Watch to see which butter slice melts off first.
what happened?
Try the experiment, tell us what happens and watch DFTV for your results! From which knife did the butter melt off first?

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