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1. Catastrophic Event Are sudden, natural or man-made situations where change and destruction may occur without prior knowledge or preparation. Ex: Supervolcano
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Impact of Catastrophic Events on the Earth Vocabulary of
Instruction:
7th Grade Unit 8: Natural Events that Change the Environment Lesson
1: Impact of Catastrophic Events on the Earth Vocabulary of
Instruction: 1. Catastrophic Event Are sudden, natural or man-made
situations where change and destruction may occur without prior
knowledge or preparation. Ex: Supervolcano 2. Drought Long periods
of usually low precipitation (rainfall). San Andreas Fault,
California
3. Earthquake The shaking and trembling that result from the sudden
movement of the earths crust (Rock beneath Earths surface). San
Andreas Fault, California 4. Equilibrium A state at which opposing
forces in a system are equally balanced or stable. 5. Flood Is when
a body of water suddenly increases in volume, sending water over
its banks into nearby land that is normally dry. 6. Hurricane A
powerful tropical storm with heavy rains and winds with speeds of
119 kilometers per hour (74 miles) or higher. The winds rotate
around an area of calm known as the eye. 7. Natural Disaster Any
sudden event that results from Earth processes and that can cause
damage or endanger human life. 8. Tornado A rapidly whirling,
funnel-shaped cloud that sometimes develops during a violent
thunderstorm and reaches down from a storm cloud to touch the
Earths surface. 9. Tsunami Is a very large sea wave, or series of
waves, produced by underwater earth quake or volcanic eruption. 10.
Volcano An opening in the earth's crust through which molten lava,
ash, and hot gases are ejected during the eruption. 11. Wildfires A
raging, rapidly spreading fire.