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Lesson 1:
What Are Some Examples of Waves?
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Lesson 2:
What Are Some Properties of Waves?
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Lesson 3:
How Do Waves Affect Objects?
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Lesson 4:
Which Waves Travel Through Earth?
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Lesson 5:
How Can Sound Waves Be Used to Send Messages?
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Lesson 6:
How Can Patterns Be Used to Send Messages?
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