How to make invisible ink? Form 3

This is a science experiment, very funny!

You need: half a lemon, some water, a spoon, a bowl, a cotton bud, white paper, a lamp.

Instructions: 1 Put some lemon juice and water in the bowl.

2 Mix the lemon juice and water with the spoon.

3 Put one end of the cotton bud in the lemon juice.

4 Write a message on the paper with the cotton bud.

5 Wait for the message to dry.

6 Hold the paper near the lamp to heat. Now you can read the message! Would you like to try?


Form 3 - Inglés

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