I Heard a Sound - David J. Ward

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 it's best: a kid-friendly, accessible text, with bold, retro-styled illustrations, and hands-on experiments you can try at home!Using everyday items like straws, balloons, rulers, and wax paper, readers can:See how sound can pass through a stringUse four straws to hear high and low soundsShow how vocal chords workUse wax paper... Zobrazit více