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- Subject:
- Science and Technology
- Institution Name:
- The GLOBE Program, University Corporation for Atmospheric Research (UCAR) and Colorado State University
- Collection:
-
Globe Program
- Grade Level:
- Secondary
- Abstract:
The purpose of this resource is to measure the amounts of nitrogen, phosphorous and potassium in each horizon in a soil profile. Using a NPK test kit, students mix a dry, sieved soil sample into a solution and chemically extract the N, P, and K as nitrate, phosphate, and potassium. The N, P, and K amounts in the sample are determined by comparing the solution to a color chart. Students describe the N, P, K amounts as high, medium, low, or none. These measurements are conducted three times for each horizon.
- Course Type:
- Learning Module
- Languages:
- English
- Material Type:
- Activities and Labs, Homework and Assignments, Lesson Plans, Teaching and Learning Strategies
- Media Format:
- Downloadable docs
- Conditions of Use:
-
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