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.
✅ 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
☀ 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.
Glass bottles, water, pencil (for striking)
Answer Keys and Teacher Notes address most questions and issues that might arise in this study—you shouldn’t have to do any outside research unless you want to.
Connect with me: If you have questions or problems, please let me know and I’ll get back to you as soon as I can.
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