Sound (Physical Science)
Key Vocabulary sound Sound is the energy that you can hear. vibrate Vibrate means to move back and forth quickly. vocal chords. jack hammer. pitch Pitch is how high or low a sound is. high/low pitched sound. yell Yell means to shout. Don’t yell/shout. yell at each other. volume Volume is how loud or soft a sound is. increase/descrese sound. turn the volume up/down. speak up. whisper Whisper means to speek quietly or softly. volume. ...