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Coliform Test Kit (Deluxe 25 Test Tube Kit)
Coliform Test Kit (Deluxe 25 Test Tube Kit)
15180

Specifically designed to dramatically and vividly show the classroom a pollutant in water, this kit is designed to permit students the opportunity of determining the presence of animal waste by seeing a dramatic color change that occurs in a lactose broth, students can determine if E coli are present. Grades 7-12.

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$29.85 Each $99.50 Each
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Air Pollution Test Kit
Air Pollution Test Kit
15177

Learn concepts of air pollution and its harmful effects using one form of a common air pollutant, sulfur dioxide on experiments with plant life. This kit provides instruction, apparatus and materials to experiment with plant seedlings exposed to a sulfur dioxide atmosphere at a known concentration which produces an effect on plant life that can easily be observed within several days.

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$29.70 Each $99.00 Each
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Exploring Groundwater Contamination (Kit)
Exploring Groundwater Contamination (Kit)
14906

Visualize the potential contamination of groundwater. Construct mini-groundwater simulation models showing the movement of a simulated, colored pollutant. Determine under what conditions contamination occurs from a variety of sources such as spill, farms, and buried tanks and how polluted groundwater eventually reaches the drinking water supply. In the process, students learn about the water cycle, water quality, ppm and ppb pollutant contamination, porosity of soils, and other related concepts. Grades 6-10.

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$40.49 Each $134.95 Each