Use this project to explore how you hear, how your ear actually works and discuss radio waves and sound waves. Talk through the Doppler Effect. Give a brief presentation on the basics and conduct some experiments to demonstrate the facts. Ask the class to investigate who invented the first radio and first telephone. How did they discover that sound could travel in that way? See if students can recreate facsimiles of the first radio or first telephone.
Organize a project on music. Discuss why music can make us sad, happy, melancholy and excited. Ask the class to investigate what it is about music that can change our moods and why certain types of music appeal to different people. Suggest that they go right back to drumbeats, which were used in armies and prior to that by native Americans, and what they meant and how they were created.
Propose a project on other sounds that affect us, such as crying, laughing, screaming and yelling. A baby's constant crying can be very irritating, a child crying can be upsetting, a scream could mean danger, yelling generally means anger. Ask the class to investigate how these sounds affect their brainwaves and what it does to their heart rates and emotions. Use a blood pressure monitor to see what happens if someone suddenly screams or sobs. Discuss why these sounds physically affect us.
Discuss how deaf people deal with no sound. Look at the Beijing dancing troupe; they learned dancing through vibrations and vision. Ask students to wear earmuffs for a couple of hours and see how it affects the way they understand sound. Teach them some basic sign language. Let them see how difficult life can be for a deaf person in a very noisy world.