Page 14 - Demo

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EARTH SYSTEMS: SOIL & SOIL DYNAMICS, continued
Soil Test Kit—Rapitest®
Quickly assess soil pH and the relative amount of three key elements—nitrogen, phosphorus and potassium (potash). Tests are as simple as dropping capsule contents into a sample and comparing the resulting color to a standard. The instructions detail how to conduct the tests, when to conduct the tests, preferred pH ranges for hundreds of plants and how to select and apply the proper fertilizers.
FB0426 I Test Kit I $19.30 FB0427 I Refill Kit I $10.10
Biology and Chemistry of Soil—
Garden Soil Analysis Kit
Measure concentration levels of nitrogen, phosphorus and potassium (15 tests each) with this simple-to-use soil test kit. A pH indi- cator and color chart are used to determine soil pH levels (30 tests for each). Step-by- step instructions allow your students to easily conduct and understand the test procedures performed. A garden guide manual and soil handbook are included.
AB1142 I $62.00
Soil Analysis Kit
Students experiment with easy-to-use
soil test procedures to determine soil
pH, nitrogen, phosphorus and potassium concentrations. Chemicals and materials are provided so each test can be performed
50 times. Each test is separately packaged so several teams of students can work simultaneously.
AB1143 I Classroom Kit I $468.45 FB0646 I Refill Kit I $270.35
Using ordinary soil samples and easy-to-fol- low techniques, students are able to conduct a thorough evaluation of the soil in your area. Students will identify the types of microor- ganisms in their soil and perform pH, nitrate and phosphates tests. Conclusions will then be made concerning the soil’s ability to support growth. Complete for 30 students working in pairs.
FB1095 I $122.55
Topsoil Tour
The seven units of the Topsoil Tour enable students to examine, discover and compare the physical and chemical properties of soil. Each student conducts tests for pH, nitro- gen, phosphorus, potassium and soil texture using safe, simple reagent tablets. Each
unit includes lecture materials, reproducible handouts, test procedures, record sheets and summary games and puzzles.
FB0592 I Classroom Kit I $86.70
FB0609 I Refill Kit I $72.25
Lead in Soil—
Student Laboratory Kit
Student Laboratory Kit
Get the attention of this eco-minded gener- ation as they discover that “healthy-looking” soil can contain traces of a toxic metal remaining decades after initial contamina- tion. Students run an aqueous extraction
on a dark, rich soil only to find that it may contain detectable levels of lead. Being able to analyze lead and other elements is key to solving environmental issues.
FB1923 I $21.25
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FLINN SCIENTIFIC I EARTH SYSTEMS