First graders know that when we talk, our vocal chords vibrate. The vibrations cause air to vibrate and eventually reach our ears and they receive the sound. Sound can vary in volume, meaning it can be loud or soft or somewhere in between. It can also vary in pitch, ranging in between high and low.
First graders are being challenged to use limited materials to communicate with someone across a distance. They have a secret to share and don't want everyone to hear it, so they must contain the sound but still allow it to travel. Check out their initial ideas and designs!
First graders are being challenged to use limited materials to communicate with someone across a distance. They have a secret to share and don't want everyone to hear it, so they must contain the sound but still allow it to travel. Check out their initial ideas and designs!