Bill Nye showcases the different types of soil in his lab. He explains and illustrates the soil profile (what soil would look like if you can dig into it and view it from the side) of each type. He also explains how soil and dust are created: from rocks and living creatures.
Following the Dust Bowl catastrophe, greater amounts of land became dedicated to wheat production and local inhabitants believed the Dust Bowl was behind them. However, in the 1950s, symptoms of a relapse were looming. Luckily, many farmers used Howard Finnell's conservation practices; therefore, the catastrophe was averted.
Hoggish Greedly is clear cutting a forest, which loosens the soil as there are no roots to hold the soil in place. The Planeteers take advantage of this and show Hoggish Greedly the effects of water erosion on loose dirt.
The colonists arrive to the New World and start digging on Native American soil in search of gold. Governor Ratcliffe sings about his love for gold and the opportunities that collecting it will afford him.