I Heard a Sound

Learn the science of sound with easy experiments and examples from everyday life.

Crickets, clarinets, and vocal chords. All vibrate. All make sound.

Here is science learning at its best: kid-friendly text, fun illustrations, and easy hands-on experiments.

Readers can:

• See how sound can pass through a string

• Use four straws to hear high and low sounds

• Attach a balloon to a cardboard tube to show how vocal chords work

• Use wax paper to see sound vibrate

• Learn how SOUND WAVES work

And much more!

A glossary is included in the back of the book.