Curated OER
Soil Porosity, Moisture Content, pH, and Density
This lab activity does not have to be done with AP environmental scientists. It can also be done with middle to high school earth scientists. The procedures aren't complex. Learners determine the density of dry and wet sand in order to...
Curated OER
Soil Analysis Lesson Plan
Students practice calculating density and examine examples of the physical characteristics of soil. They solve a "crime" based on the evidence and laboratory investigations.
PBS
Pbs Teachers: Newspaper Tower
Investigate the basic forces acting on a tower and the importance of foundations.