Magic experiment for kids – A recipe for invisible ink using yoghurt

Magic experiment

In this small and simple magic experiment for kids, you will see how to write a secret message with invisible ink made from yoghurt. You will also see the trick to make it visible again. What does this experiment have to do with science? All this is possible thanks to carbon.

Magic experiment for kids equipment:

  • A candle
  • A pot of natural yoghurt
  • Matches
  • A white sheet of paper

Magic experiment for kids Instructions:

  1. Take a match and dip it in the yoghurt. Use it to write your message on a white sheet of paper. Keep dipping the match in the yoghurt!
  2. Allow the paper to dry for 5 to 10 minutes.
  3. To make the message visible, light the candle and place it under the sheet of paper. The side with the message should face down towards the flame. Allow to heat without burning the paper. The message will gradually begin to appear!

Magic experiment for kids Explanation:

Yogurt is composed of various nutrients (proteins, carbohydrates, lipids) that all come from organic matter. You should know that living matter consists of carbon. A feature of carbon is that it turns brown and black during combustion. Therefore, the message becomes visible.

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