Students research measurements of the moon and Earth as well as the distance between the two in order to create scale models of the Earth-moon system. With a marble to be used as the moon, they must determine how large to make Earth...

Students consider the comparative sizes of the planets in the solar system. For this scale lesson, students select balls of different sizes to represent the planets in the solar system.

Students study and classify soil. In this soil science lesson, students classify soil by texture and size and study soil horizons. Students label the soil types with their specific soil horizon and learn about permafrost. Students...