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Sieve Set with Lid & Catchpan
These economical stainless steel mesh sieves can be stacked together to help separate soil or sediment particle sizes. Available either separately or as a set of six. The set contains a lid and a catch pan.
Sizes:
4000 micron, 2000 micron, 500 micron, 250 micron, 125 micron and 63 micron.
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Shaker Sieve
This is great for soil and general particle sifting. 24 x 16 x 3? with 2mm aperture (2000 micron) to correspond to US Sieve Size 10. Wood frame, steel mesh, great quality and price.
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Sampling Square, Fold-Up
Quantify the results of your field study with our folding sampling square. This plastic device cleanly and quickly marks off either a quarter meter square (0.25 meter squared) or a full meter square (1.0 meter squared) on land or in water. It snaps open with a durable shock cord inside the PVC legs. Connections are made with T-connectors which allow the frame to sink in water. Collapsible for transport and storage. Comes with instructions.
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Distance Measuring Trundle Wheel
Measure great distances with our top quality trundle wheel. This distance counter features a 30cm rubberized wheel. The unit will fold down to be carried in its included soft bag. The five digit counter will light up with a flip of a switch on the handle to illuminate the numbers in low lighting.
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Plastic Sieve Set
This sieve set lets students separate and grade soil and rock samples in order to determine the makeup of the soil strata. Each set stacks together and includes bottom pan and lid with Teacher's Guide. 6-3/4" x 3" with wire mesh bottom.
Set of four includes: #5, #10, #60, #230
Set of six includes: #5, #10, #35, #60, #120, #230
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Sifter Screen
Sift out sticks and leaves in your sample. Can be used on the top of our wash bucket (623-3210) or your 5-gallon container.
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Soil Sampling Tube
This 12" stainless steel sampler takes a sample 7" long, and 1/2" in core diameter. Use the cut-away side to check your core sample before removing it for testing.
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Brass Testing Sieve
This will take care of most sizing, testing and grading requirements in the all-important 500 micron range. Mesh counts and openings are accurate and will not trap particles. Die-case brass frame and stainless steel mesh. 2 x 8" diameter.
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Student Soil Thermometer
Rugged thermometer features readings of -15? to 65?C with easy-to-read numbers. 12.5" (32 cm) long. Includes a push ball for insertion into soil.
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Soil Thermometer, Dial
Features a 2" diameter dial, 6" stainless steel stem and temperature range of 30 to 90?F.
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Compost Thermometer, Dial
Monitor temperature of compost accurately.
Features a 2" diameter dial, 24" stainless steel stem and temperature range of +10 to 90?C (+50 to 190?F).
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Npk Soil Test Kit
Specifically designed to meet the needs of the GLOBE program, this kit contains enough materials for 50 tests. Includes non-hazardous TesTabs? tablets, instructions and laminated color chart.
Test for nitrogen, phosphorus and potassium.
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Soil pH Test Kit
This popular pH soil kit highlights the need for accurate pH testing to determine lime requirements and to ensure soil fertility. Includes: chemical indicator, color comparator chart, plastic spot plate, instructions, and soil test handbook.
Enough materials for 100 pH tests. Test for nitrogen, phosphorus and potassium.
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Soil Test Kit
Grades 4 - 6; 40 tests.
Soil testing can't get much easier than this. Mix soil with water, let it settle, add a tablet, and compare the liquid to the color film chart. Includes: instructions and materials for 10 tests each of pH, nitrogen, phosphorus and potash.
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Biology and Chemistry of Soil Kit
For 50 students.
Conduct a thorough evaluation of soil with ordinary soil samples your students can dig up anywhere. We introduce simple, easy-to-follow techniques and staining procedures early on so your students can get the most out of these activities. Soon they're able to identify the type and variety of microorganisms, calculate soil fertility by a cation exchange capacity elimination, test and determine soil pH, and correlate the soil's pH to soil lime requirements.
Kit includes:
12 chem-plates; 12 calibrated tubes; 4 drop-controlled bottles Phenolic Rose Bengal; 3 drop-controlled bottles Barium Chloride solution; 2 drop-controlled bottles of pH Soil Indicator solution; 1 drop-controlled bottle of Potassium Dichromate solution; 50 plastic slides; 50 plastic cups; 50 worksheets and guides; instruction manual with MSDS
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