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15 terms

Earth Science 5th grade

STUDY
PLAY
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