Your scavenger hunts are about to go to the next level! Grab some lemon juice, a cotton swab, and a magnifying glass. Write your hidden messages in lemon juice, let them dry, then reveal the clues with heat or sunlight. It’s part simple science, part scavenger hunt, and all kinds of fun! #learningresources #kidstoys #educationaltoys #kidsactivities #summer #scavengerhunt