give an Fantastic experiment for science exhibition
Answers
Answered by
1
MAGICAL INK
take a toothpick or an empty pen refill. fill it with lemon juice. write with this invisible ink on a white paper. after it dries no one would be able to read it. then, hold the paper near a flame of candle, the letters will start appearing in brown colour. lemon ink changes its colour when subjected to heat.
you can write secret messages
take a toothpick or an empty pen refill. fill it with lemon juice. write with this invisible ink on a white paper. after it dries no one would be able to read it. then, hold the paper near a flame of candle, the letters will start appearing in brown colour. lemon ink changes its colour when subjected to heat.
you can write secret messages
Similar questions