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Soil Permeability Kit
To leak or not to leak - that is the questions. Take the quesswork our of determining soil porosity! Show the relationship between particle size, shape and uniformity. Place two different soil samples in the sidy-by-side high-quality graduated tubes ...
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 activi...
What's In The Soil? Part I
Kit contains enough materials for 30 students working in pairs. Test for the presence of 10 nutrients and minerals in ordinary soil samples and learn why they are essential for plant growth. Compare soil samples. This kit highlights water content, or...
What's In The Soil? Part II
Kit contains enough materials for 30 students working in pairs. Have your students culture their own soil microbes to get the real scoop on life beneath the earth's surface. Your group will collect and extract different soil samples, then record the ...
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