Invisible Ink Science Project
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Invisible Ink Science Project

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Easy to apply science project that awarded my elementary school kids a first place.

Easy to apply science project that awarded my elementary school kids a first place.

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Invisible Ink Science Project Invisible Ink Science Project Presentation Transcript

  • Invisible Ink
    EscuelaPrimaria México
    Students:
    • García Perez Rene Alejandro
    • Garza Tenorio Arturo Vicente
    • Mireles Benavides Paola Elizabeth
    • Santos Garza Luis Hervey
    Teacher Tomás E. Ruiz Rivera
  • Materials:
    • Lemon
    • Water
    • Spoon
    • Bowl
    • Q-tip
    • White Paper
    • Candle or heat source
  • Procedure:
    Squeeze all the juice from the lemon into the bowl and add some drops of water.
    Mix the water and lemon juice with a spoon.
  • Dip the cotton swab into the mixture and write a message onto the white paper.
    Wait for the juice to dry so it becomes completely invisible.
  • When you are ready to read your secret message or show it to someone else, heat the paper by holding it close to the candle or heat source.
  • You will see how you message magically reveals!!!
    Science is
    Cool!!!
  • Scientific explanation:
    Lemon juice is an organic substance that oxidizes and turns brown when heated.
    Diluting the lemon juice in water makes it very hard to notice when you apply it the paper, no one will be aware of its presence until it is heated and the secret message is revealed.
    Other substances which work in the same way include orange juice, honey, milk, onion juice, vinegar and wine.
  • Thankyou