Tonoscope

Tonoscope

Introduction

A balloon and cardboard tube device that makes sound waves visible, showing how vibration and frequency relate to pitch.

Introduction

A balloon and cardboard tube device that makes sound waves visible, showing how vibration and frequency relate to pitch.

STEMsters

STEMsters

STEMsters

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Bring our program to your school.

By submitting, you agree to our Terms and Privacy Policy.

© 2026 STEMsters®

Let's Talk

Tell us about your classroom—we’ll help you find the right program.

Quick response.

If you're ready to bring hands-on STEM to your school or community, we'd love to hear from you.

Clear next steps.

After you reach out, we'll connect you with a chapter lead or volunteer coordinator within a few days.

STEMsters

Bring our program to your school.

By submitting, you agree to our Terms and Privacy Policy.

Let's Talk

Tell us about your classroom—we’ll help you find the right program.

Quick response.

If you're ready to bring hands-on STEM to your school or community, we'd love to hear from you.

Clear next steps.

After you reach out, we'll connect you with a chapter lead or volunteer coordinator within a few days.