Hamilton MS Science Gr 7 Groundwater and Catastrophic Events Vocab

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Groundwater and Catastrophic Events

groundwater

water that fills the cracks and spaces in underground soil and rock layers

watershed

the land area that supplies water to a river system

surface water

All of the bodies of fresh water, salt water, ice, and snow that are found above the ground.

aquifer

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

run off

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

accumulation

the process in which water pools in large bodies (like oceans, seas and lakes)

weathering

The breaking down of rocks and other materials on the Earth's surface.

erosion

condition in which the earth's surface is worn away by the action of water and wind

deposition

process in which sediment is laid down in new locations

recycle

to use something again

landslide

the sudden movement of rock and soil down a slope

disposal

The act of getting rid of waste

conservation

the preservation and careful management of the environment and of natural resources

land subsidence

as water is withdrawn from an aquifer land and gravel layers collapse

contaminate

to pollute

depletion

The loss of water from surface water reservoirs or groundwater aquifers at a rate greater than that of recharge.

Texas Ecoregions

areas of general similarity in ecosystems and in the type, quality, and quantity of environmental resources. There are 12 ecoregions in Texas.

impact

an effect or result

water cycle

The continuous movement of water from the ocean to the atmosphere to the land and back to the ocean

recharge zone

An area in which water travels downward to become part of an aquifer.

permeable

penetrable; porous; allowing liquids to pass through

impermeable

characteristic of materials through which water does not easily pass, such as clay and granite

catastrophic event

any natural event that occurs on earth and causes significant changes or damage to the earth's surface. May include storms, earthquakes, and volcanic eruptions.

pollution

a change to the environment that is harmful to living things;has a negative efect

well

a deep hole or shaft dug or drilled into the earth to obtain water or oil or gas.

porosity

the percentage of the total volume of a rock or soil that consists of open spaces

water table

underground surface below which the ground is saturated with water

appropriate

suitable or right for the purpose

inappropriate

unsuitable or improper for a specific purpose or use

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