How Does Soil Vary from Place to Place?
ES1206  Quantifying Observations

Now, you'll analyze the six soils you just examined. A soil scientist has marked the boundary between the topsoil and the subsoil on each of the profiles.

  !   Use the measuring tool to measure the topsoil depth of each state profile. Measure from the ground surface down to the red line.

5. Measure and record the topsoil depth in your table.


Images from the USDA-NRCS


  !   Click "Continue" to move to another state's soil profile. After you have completed all six profiles, go to the next page.


 Step:   1   2   3   4   5   6   7