🍋 Invisible Ink Messages
⏱ about 20 min
⚡ medium
Science & Magic
Write a secret message with lemon juice, let it dry, then ask a grown-up to gently warm the paper to reveal your words.
🧺 What you'll need
- Lemon juice
- Cotton swab
- Paper
👣 Steps
- Dip a cotton swab in lemon juice and write a message on paper.
- Let the paper dry completely so the writing disappears.
- Ask a grown-up to gently warm the paper (with a hairdryer or warm iron).
- Watch your secret message appear.
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