7 TH S CIENCE Topic Blitz! DO NOW!. W HAT FORCES OF NATURE SCULPTED THESE LANDSCAPES ? H OW CAN YOU TELL ? Wind? Tidal Surge? Water? Volcanic Eruption?
Chapter 20 Sound. 1. ORIGIN OF SOUND The frequency of a sound wave is the same as the frequency of the source of the sound wave. Demo - Oscillator and.
Chapter 12.1-SOUND
Chapter 20 Sound
