Return to Unit List Grade 5   Unit F: Motion and Energy     Chapter 12: Newton's Laws of Motion   Lesson 1: Newton's First Law   Summary   Quiz   Lesson 2: Newton's 2nd and 3rd Laws   National Geographic: Planet Hunting   Summary   Quiz   Lesson 3: Newton's Law of Gravitation   National Geographic: "Vomit Comet"   Summary   Quiz   Research Report: Gravity   Chapter 12: Links Chapter 13: Sound Energy   Lesson 4: Sound Waves   Summary   Quiz   Lesson 5: Pitch and Loudness   National Geographic: Hit That Note!   Summary   Quiz   Lesson 6: Reflection and Absorption   National Geographic: The Sounds of Earthquakes   Summary   Quiz   Research Report: Sound Waves   Chapter 13: Links Chapter 14: Light Energy   Lesson 7: Light and Mirrors   National Geographic: Bulbs: The Bright Idea!   Summary   Quiz   Lesson 8: Light and Lenses   National Geographic: Cameras - Say "Cheese"!   Summary   Quiz   Lesson 9: Light and Color   Summary   Quiz   Lesson 10: Invisible Light   Summary   Quiz   Research Report: Invisible Light   Chapter 14: Links   People in Science/Careers