Duration: 90 minutes
Notes / Activity
Using DIY materials:
1. Design and build a harmonica
What difference can you hear in the pitch of the bottles?
“Why does the bottle with more water produce the highest pitch?”
You have been challenged to create a harmonica to produce high pitch and low pitch sounds using the materials provided. How are you going to do that?
What sound do you hear?
Do you feel anything in your hands as you blow through your instrument?
Can you change the tone of the sound by moving the straw?