Earth Science 5th grade

15 terms by SylviaKern

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fault

a crack in the Earth's crust

earthquake

shaking of Earth's crust

volcano

mountain made from the lava, rocks, and ash that spewed from an active volcano

lava/magma

magma-hot, melted rock beneath Earth's surface lava-magma that flowed onto the surface of the Earth

erosion

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

weathering

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

deposition

the natural process of sediment (dirt) moving down a river and being deposited (dropped) to make new soil

dam

something built to stop flow of water

levee

a bank built beside a river or stream to prevent overflow.

storm drain

an opening built to collect runoff (rain), which then flows into an underground system.

beach reclamation

sand pumped to a beach area to restore the beach as it once was prior to beach (sand) erosion caused storms, winds, tides

constructive force

a force that builds up features of the Earth's surface

destructive force

a force that wears away mountains and other features on the surface of the Earth

sediment

small, solid pieces of material that come from rocks or living things- dirt

jetty

a type of wall built out into water to protect a coastline or restrain currents

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