FPO
SOIL
Groundwater Exploration Activity Model
This durable acrylic model teaches students about groundwater sources, storage and flow beneath the Earth’s
surface and more. Using dyes as simulated contaminants, the model reveals how pollution and its contamination
directly affect the environment. 20" L x 5" W x 12½" H.
AP5205—$681.30
Soil Is a Natural Filter—
Demonstration Kit
Demonstrate how soil binds and stores essential
nutrients and exchanges them with plants by filtering
positively and negatively charged inorganic dye
solutions through soil and sand with differing results.
AP7181—$29.60
Soil Test Kit—Rapitest®
This self-contained kit lets students quickly assess soil
pH and the relative amount of nitrogen, phosphorus and
potassium (potash). Simply drop the capsule contents in
a sample and assess the resulting color.
FB0426—$19.90
Groundwater is found
underground in soil,
sand and rocks. It is a
natural source—one of
the most important—
of water for irrigation.
Groundwater
contamination occurs
when gasoline, oil and
chemicals get into the
groundwater, making
it unsafe to use.
8 FLINN SCIENTIFIC I 1-800-452-1261
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