Water Cycle and the Hydrosphere
Hydrosphere Dynamics: Water Movement and Distribution
The Hydrosphere: From Surface Water to Groundwater
Understanding the Hydrosphere: Earth's Water System
Exploring the Hydrosphere
100

A body of rock or sediment that stores groundwater and allows the flow of groundwater.

Aquifer

100

The area subject to flooding during a given number of years according to historical trends.


Floodplain


100

water pollution that does not have a specific point of origin; "You cannot easily point to it.


non-point source pollution


100


A chemical intended to kill insects and other organisms that damage crops.


Pesticide

100

The upper level of the saturated zone of groundwater


water table

200

micture of salt and fresh water

Brackish Water

200

Does not contain any salt and can be rivers, lakes, streams,ponds, and wetlands


Freshwater

200

pollution that enters a body of water from a specific source; "You can easily point to it"


point source pollution


200

The area of land drained by a river and its branches.


River basin

200

an area of land that drains all the streams and rainfall to a common outlet


watershed

300

the amount of water in a stream that passes a given point in a period of time


Discharge

300

the large circular surface current pattern found in each ocean


Gyre

300

Ability of rock or soil to allow water to flow through it


permability

300

water that flows over the ground surface rather than soaking into the ground


Runoff

300

zone where all open spaces in sediment and rock are completely filled with water


zone of saturation


400

excessive richness of nutrients in a lake or other body of water, frequently due to runoff from the land, which causes a dense growth of plant life and death of animal life from lack of oxygen.


Eutrophication


400

the process by which surface water enters the soil


Infiltration

400

the volume of open spaces in rock or soil


porosity

400

The amount of energy required to raise the temperature of 1 gram of a substance by 1 degree celcius


specific heat

400

Attraction between molecules of the same substance


cohesion


500

The gradual sinking of land. The condition may result from the removal of groundwater or oil, which is frequently instrumental in supporting the overlying rock and soil.


land Subsidence


500

The gradual sinking of land. The condition may result from the removal of groundwater or oil, which is frequently instrumental in supporting the overlying rock and soil.


land Subsidence


500

A chemical intended to kill insects and other organisms that damage crops.


pesticide

500

Evaporation of water from the leaves of a plant


transpiration

500

An attraction between molecules of different substances


adhesion