Here is an easy and cool way to pass on a secret note!

All you need is:
A lemon
Cotton swab
One sheet of white copy paper
Knife ****Ask an adult!!!!****
Lamp
Small bowl

Instructions:

• Have an adult cut the lemon in half
• Squeeze lemon juice into the bowl
• Stick the cotton swab in the lemon juice
• Write a note on the paper gently with the damp swab
• Let dry
• Hold under a lamp and there you have it, a secret message only visible under light!