Identify an instrument. pretend that you are that musical instrument and write details how the sound moves through the instrument to produce music.

A cello. As the bow, made of horsehair and wood (typically), runs across the metal strings of the cello, it create vibrations. Depending on the thinness or thicknees of the string, as well as the length, it creates a differen pitch. If you place a finger on top of one of the strings, it shortens the string and creates a higher pitch. The vibrations caused by the bow on the strings reverberate throughout the wooden instrument, which is hollow and echoes the sound through the holes carved into it.

imagine a line passing through the center of earth that goes through both the north pole and the south pole. this imaginary line is called an axis. earth spins around its axis, just as a top spins around its spindle. this spinning movement is called earth's rotation. at the same time that the earth spins on its axis, it also orbits, or revolves around the sun. this movement is called revolution.