Oak Park, Illinois
by Eric J.
Materials: Bottles, paint, glue, glitter, and water
Procedure: I painted the bottles red and added glue and glitter. I put different amounts of water in each bottle.
My instrument makes sound by blowing in it. The kind of sound depends on how much water is in the bottle and how long the air column is. You have to put a certain amount of water in each bottle. If you put a lot of water in one bottle it makes a higher pitched sound.