Course Content Unit: Light and Sound 19 Activities Expand Lesson Content Lesson 19 – Safety with Light and Sound Lesson 15 – Experiment: Pitch Lesson 14 – Experiment: Loudness Lesson 12 – Experiments: Travelling Sound (Experiment 2) Lesson 11 – Experiments: Travelling Sound (Experiment 1) Lesson 10 – Experiment: What Is Sound? Lesson 07 – Experiment: Light Passing Through Materials Lesson 06 – Experiment: Refracted Light Lesson 04 – Experiment: How Does Light Travel? Lesson 03 – Experiment: Make Your Own Rainbow Lesson 01 – Sources of Light Lesson 05 – Reflected Light Lesson 13 – Changing How Sound Travels Lesson 18 – Musical Instruments Lesson 17 – The History of Hearing Aids Lesson 16 – Hearing Sounds Lesson 09 – Light Technology Lesson 08 – What Can You See Through? Lesson 02 – Light and Energy
