Groundwater Aquifers (Science Experiments)
Confined or unconfined?
Our most precious resource?
Aquifers: How do they become polluted?
Design Your Own Experiment
The term sounds as if it refers to an underground lake or river, but relatively little groundwater is found in this form. Groundwater lies below the surface of the land; in fact, it is almost everywhere underground. Mostly it is found in the tiny poresAn opening or space., or spaces, between rocks and particles of soil and in the cracks of larger rocks.
Where does groundwater come from? When rain falls, some of it flows along the surface of the ground into streams and lakes as . Some of the rain evaporates into the atmosphere, some is taken up by plant roots, and some seeps into the ground to become groundwater.
Underground areas called collect much of this groundwater. An aquifer is composed of permeableHaving pores that permit a liquid or a gas to pass through. rock, loose material that holds water. Permeable means...
(The entire section is 2785 words.)
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