Abstract: I wanted to know if I could to see the messange on the paper if I should hold it close to a light ? this experiment needed half a lemon, water, spoon, bowl, cotton bud, white pap and Lamp or other light bulb. Frist I squeezed some lemon juice into the bowl and added a few drops of water
Second I mixed the water and lemon juice with the spoon third I dipped the cotton bud into the mixture and wrote a message onto the white paper fourth I waited for the juice to dry so it became completely invisible and when you are ready to read your secret message or showed it to someone else, heat the paper by holding it close to a light bulb. The results showed that if we writea message by lemon we can read.