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Science Topic 5: Natural Hazards
Natural Hazards
13
Science
4th Grade
12/16/2021

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Term
fault
Definition
a crack in the crust where to two sides slide past each other
Term
crust
Definition
top layer of the Earth
Term
earthquake
Definition
a shift that releases pressure on Earth's crust and causes the crust to shake
Term
tsunami
Definition
a massive wave caused by earthquakes that rupture the ocean floor
Term
volcano
Definition
an opening in Earth's crust that allows superheated rock and other materials below the crust to reach the surface
Term
eruption
Definition
release of volcanic material
Term
hazard
Definition
a danger to humans caused by an event
Term
tectonic plates
Definition
pieces of land that connect together on Earth's outer shell
Term
flood
Definition
the flow of water over land that is not normally covered with water
Term
drought
Definition
a long period of very dry weather
Term
avalanche
Definition
the sudden sliding of snow, ice, and rock down a slope
Term
landslide
Definition
the sliding of rock and soil down a slope
Term
outcome
Definition
result
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