Scientific Tuesdays - Make invisible ink from milk?!

Scientific Tuesdays - Make invisible ink from milk?!
  HouseholdHacker
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In this episode of Scientific Tuesdays we show how to create a secret message on paper using milk and a simple iron! It doesn't get any easier than this!Scientific Tuesdays will be on hiatus for a few weeks while we stat on Season 2 for you! But relax

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