33 terms

Freshwater including water cycle with images

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Terms in this set (...)

divide
a ridge of land that separates one watershed from another
drainage basin/river basin/watershed
An area into which all of the water on one side of a divide flows.
eutrophication
An increase of nutrients, usually nitrates and phosphates in a water body that can lead to an increase in algae and other microorganisms, that can lead to oxygen depletion and fish kills.
ground water
Water in the ground
aquifer
A permeable underground layer of rock or sediment that filters and stores water.
permeable
Water can pass through.
impermeable
Resistant to the passage of water.
water table
The top of the region underground that is saturated, or completely filled with water.
well
A hole drilled into the ground that reaches down to the zone of saturation. (hopefully)
artesian well
A well in which water flows to the surface naturally because it is under pressure. A well that does not need to be pumped.
spring
A flow of water from the ground at a place where the surface of the land dips below the water table.
evaporation
Process by which water changes from a liquid into an atmospheric gas
The change of a substance from a liquid to a gas
condensation
The change in state from a gas to a liquid
precipitation
Any form of water that falls from clouds and reaches Earth's surface as rain, snow, sleet, or hail.
runoff
Part of the water cycle where an excess of water runs downhill, does not sink into the soil, and eventually makes it to rivers, lakes, and oceans.
infiltration
The movement of surface water into rock or soil through cracks and pore spaces
transpiration
The process by which plants release water vapor through their leaves.
tributary
Any smaller stream or river that flows into a larger stream or river.
mouth of a river
place where a river empties into a larger body of water
headwaters
The place where a river begins.
First and smallest streams formed from runoff of precipitation.
freshwater
Relatively pure water holding very few dissolved salts (minerals). Includes ice, groundwater, clouds, lakes, rivers, and streams. Less than 1% is easily available.
saltwater
water that contains dissolved salts (found in oceans)
salinity
The total amount of dissolved salts in a water sample.
desalination
A process of removing salt from ocean water
hot spring
a pool formed by groundwater that has risen to the surface after being heated by a nearby body of magma
geyser
a natural hot spring that shoots a column of water and steam into the air
pointsource pollution
.pollution that enters water form a known source.
nonpoint source pollution
Pollution that comes from many places or a source that is not easily identified.
lake turnover
Seasonal change in a lake. The rising and sinking of warm and cold water and nutrients and oxygen in a lake in a lake.
surface water
Water above the surface of the land, including lakes, rivers, streams, ponds, floodwater, runoff, and frozen glaciers and icecaps.
conservation
Protecting and preserving natural resources and the environment
glacier
A large mass of ice that exists year-round and moves over land.
saline water
Water that contains salt.
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