15 thoughts on “Physics 4-9-13 Sound

  1. So, on that picture of the jet breaking the sound barrier, why is there another circle of moisture after to cockpit?

    • Claire – ExploreZone! You have to bring everything to school to let me see it work. Then you can probably take it home, depends on what it is.

  2. Ms. Skinner, I won’t be at school Wednesday through Friday for the band trip. Should I take my test next Monday or Tuesday?

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