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Spy Writing

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What if we could pass along information that can’t be stolen or intercepted? We can do it with a little coding, and some chemistry! Soon we will be writing in code, passing secret information along, and making sure it’s safe by making it invisible! Students will create two solutions to make disappearing ink, and a reappearing agent! Students will then encode words, make them invisible, pass them to a friend, make them visible again, then decode them! It's a lot of work, but also a lot of fun!

Lesson Grade Level

3rd Grade 4th Grade 5th Grade

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Grades: 4th Grade, 5th Grade, 6th Grade
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In this exciting lesson, students will use the engineering design process to devise an alternative method for retrieving the shield of Ares from Hephaestus' trap, as depicted in Chapter 15 of "Percy