Soil Profiles and Surveys
Soil develops over time and forms soil horizons. Soil horizons are different layers of soil with depth. The most weathering occurs in the top layer. This layer is most exposed to weather! It is where fresh water comes into contact with the soil. Each layer lower is weathered just a little bit less than the layer above. As water moves down through the layers, it is able to do less work to change the soil. This is because the chemical reactions have already occurred. If you dig a deep hole in the ground, you may see each of the different layers of soil. All together, the layers are a soil profile.
Level 7 - Guiding Question: California has 2,000 different soils, how does that happen?
click on the button below to view the online chapter on Soil Profiles
After reading the chapter above please finish the review below. Achievements 20
Level 7 - Investigations: Field study on Horizons
If you need to print out a copy of the lab please click the button below (use only the computers to print.) To prepare for the lab your group is responsible to assemble all the necessary tools and equipment before we leave for the soil site. You will need soil sieves, soil color charts, trowels, and Gempler soil kits which are located in the Water Street office. Check out all equipment with Amanda or Mr. Delsol.
Level 7 - Videos: Soil Survey tools, using SoilWeb online to understand soil horizons and land usage.
Part 1: How to set up and navigate in SoilWeb.
Part 2: Using the tools and understanding how to analysis sites.
Level 7 - Elaborate: Using Soil Web to determine Land Usage. After watching the video read the scenario and determine if the project is feasible, please give sound reasons bases on the data you receive from SoilWeb.
Level 7 - Review: Prepare for the upcoming unit test by studying the practice tests below.
Practice Quiz Press "Start" to begin
Dogs have masters. Cats have staff.
- ANONYMOUS