Activities for Lesson 11

If you were a spy during the American Revolution, where would you hide a message? Try this recipe for invisible ink:

4 drops of onion juice
4 drips of lemon juice
pinch of sugar

Stir together the onion juice, lemon juice, and sugar in a shallow bowl. Use a toothpick to write your message. As the "ink" dries you message will disappear. Hold the message over a bright bulb and your message will magically reappear.

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Videos Appropriate for this Lesson

Stories from Long Ago:  Nathan Hale

Stories from Long Ago:  Molly Pitcher