Question

PREPARE A SOLUTION OF BAKING SODA IN WATER WRITE YOUR SECRET MESSAGE ON A WHITE PAPERWITH COTTONSWAB DIPPED IN BAKING SODA SOLUTION LET THE MESSAGE ON PAPER DRY UP RUB A SLICE OF FRESH BEETROOT OVER IT . WRITE YOUR OBSERVATIONS . HAVE YOU READ MESSAGE NOW?

Answer 1

The message does not appear on writing, after it has dried and is rubbed with beetroot, it appears on the paper.