The Earthlings and Digit have been separated into two different rooms, and they need to set the elevator shaft to the correct height in each room in order to move through Hacker's statue. Both groups decide on a standard unit of measurement, a quarter, and use their length measurement skills to set each elevator shaft to the correct height.
Using an oscilloscope, electronic keyboard, and piano, Bill Nye shows what the waves look like for sounds of varying pitches. He also explains how notes and rhythm play a role in forming what we define as music.
Dominique and Ben race against the clock to match several brick bits of a castle to pieces of wallpaper containing the measurements. Later, a kitten asks a dragon if it can fit a drawer in its room, and the dragon measures the drawer to illustrate how to know for certain whether or not it will fit.
This video simply discusses what properties of matter are and explains a few properties, such as length, width, height, and weight, commonly seen in science. The video is simple, but depth and complexity can then be added to your lesson based on grade level.