Blow or tap a series of bottles with different amounts of water to see how the size of a vibrating object compares to the pitch it makes. Kids are fascinated to see that the same bottle produces different pitches when it's blown versus tapped. Kids gain first-hand knowledge of this concept: that more massive objects make lower pitches.
 
What's Included:
✅ Instructions written directly to the student
✅ Student Sheet for capturing observations
✅ Answer Key to Student Sheet
✅ Teacher Notes with prep, set up, and explanations.
 
This Resource Is Great For:
❑ Whole class activity
❑ Group work
❑ Station work
 
Questions Answered:
☀ How does the amount of water in a bottle affect the pitch it makes when it is struck?
☀ How does the amount of water in a bottle affect the pitch it makes when it is blown?
 
Topics & Concepts Addressed:
✦ The more water in a bottle, the lower the pitch it will make when struck.
✦ The less water in a bottle, the higher the pitch it will make when struck.
✦ The more water in a bottle, the higher the pitch it will make when blown.
 
Materials Needed
Glass bottles, water, pencil (for striking)
 
Preparation Needed
gather materials