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30 Cards in this Set
- Front
- Back
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polarity |
when one end of a molecule has a positive charge and the opposite end has a negative charge |
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cohesion |
the sticking together of particles of the same substance. |
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adhesion |
the action or process of sticking to a surface or object |
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surface tension |
the tension of the surface film of a liquid caused by the attraction of the particles |
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dissolved oxygen |
the amount of oxygen that is present in the water |
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pollution |
the introduction of contaminants into the natural environment that cause adverse change. |
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buoyancy |
the ability or tendency to float in water or air or some other fluid. |
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density |
how tightly packed the molecules of a substance are |
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specific heat |
the amount of heat per unit mass required to raise the temperature by one degree Celsius |
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potability |
consumable water |
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pH |
measure of how acidic/basic a fluid is |
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phosphates |
a salt or compound that has phosphorus in it especially in fertilizers |
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nitrates |
a salt or compound that has nitrate in it especially in fertilizers |
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hydrosphere |
all the waters on the earth's surface, |
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River basin |
the land that water flows across or under on its way to a river |
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watershed |
an area or ridge of land that separates waters flowing to different rivers, basins, or seas |
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estuary |
that part of the mouth or lower course of a river in which the river's current meets the sea's tide |
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upwelling |
displaced surface waters are replaced by cold, nutrient-rich water that “wells up” from below |
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stewardship |
an ethic that embodies the responsible planning and management of resources |
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sustainability |
property of biological systems to remain diverse and productive indefinitely |
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Ocean basin |
areas found under the sea |
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Marine |
of, found in, or produced by the sea |
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bioindicator |
a living organism that gives us an idea of the health of an ecosystem |
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point source pollution |
any single identifiable source of pollution from which pollutants are discharged, such as a pipe, ditch, ship or factory smokestack |
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non-point source pollution |
both water and air pollution from diffuse sources |
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runoff |
the draining away of water (or substances carried in it) from the surface of an area of land, a building or structure |
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groundwater |
water present beneath Earth's surface in soil pore spaces and in the fractures of rock formations |
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aquifer |
a body of permeable rock that can contain or transmit groundwater. |
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salinity |
the measure of all the salts dissolved in water |
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turbidity |
the cloudiness or haziness of a fluid
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