Some people in the world write very strangely. From blood to lemon juice, people use different things to write.

Today I am going to show you how to write with “Invisible Ink”. It is not really invisible, it just can’t be seen through the naked eye. You will need  normal lemon juice and a regular toothpick.

This method of writing is popular during wars as it can send secret messages without being detected.

          1. Pour lemon juice into a bowl.

          2. Stick one end of the toothpick into the juice

          3. Write using the toothpick

          4. Put the paper over a fire and you can see what you just wrote!

Handle fire and toothpick carefully.

This happens because lemon juice is a type of acid.

Hint: Try to write something else with NORMAL ink so it will not seem so people will not suspect something.

Have fun!