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	Grade 4: Waves, Energy, and Information, Chapter 2, Lesson 1 (Part 1 of 2) (Brad Shigenaka) View
	Grade 4: Waves, Energy, and Information, Chapter 1, Lesson 2 (Brad Shigenaka) View
	Wave behavior \| MightyOwl Science \| 4th Grade (MightyOwl) View
	Grade 4: Waves, Energy, and Information, Chapter 1, Lesson 1 (Brad Shigenaka) View
	Grade 4: Waves, Energy, and Information, Chapter 1, Lesson 1.4 (Part 1 of 2) (Brad Shigenaka) View
	Grade 4: Waves, Energy, and Information, Chapter 2, Lesson 1.2 (Part 2 of 2) (Brad Shigenaka) View
	Grade 4: Waves, Energy, and Information,, Chapter 2, Lesson 2.4 (Part 1 of 2) (Brad Shigenaka) View
	Grade 4: Waves, Energy, and Information, Chapter 3, Lesson 3.5 (Part 1 of 2) (Brad Shigenaka) View
	Grade 4: Waves, Energy, and Information, Chapter 2, Lesson 2.2 (Part 1 of 2) (Brad Shigenaka) View
	Grade 4: Waves, Energy, and Information, Chapter 2, Lesson 2.3 (Part 1 of 2) (Brad Shigenaka) View