Unit 8: Waves, Sound, and Light
Chapter 20 -- The Energy of Waves (the nature of waves / properties of waves / wave interactions) (my notes)
Chapter 21 -- The Nature of Sound (what is sound / properties of sound / interactions of sound waves / sound quality) (notes)
Chapter 22 -- The Nature of Light (what is light / electromagnetic spectrum / interactions of light waves / light and color) (my notes)
Chapter 23 -- Light and Our World (mirrors and lenses / light and sight / light and technology) (my notes)

Notes & reminders:  
-Andrew Leary can do a demo lesson on sound during this unit.

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