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Chapter 2 Vocab reveiw
Vocabulary words
35
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7th Grade
09/30/2009

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Term
Drianage basin
Definition
The area drained by a major river
Term
Ground river
Definition
Water found beneath the Earth's surface
Term
Hydrologic cycle
Definition
the cirulation of water between the Earth ,the oceans, and the atmosphere
Term
Landform
Definition
A feature on th eEarth' ssurfacw formed by physical force
Term
Plateau
Definition
A board, flat area of land higher than the the surrounding land
Term
Relief
Definition
the difference in the elevation of a landform from lowset point to it's highest point
Term
Continental shelf
Definition
The sudmerges land at the edge of a continent
Term
Atmosphere
Definition
The layer of gases that surround the Earth
Term
Solstice
Definition
The time during the year when the sun reaches the farthest northren or southren point in the sky
Term
equinox
Definition
one hof the two times a year when the suns rays are over the equator and days and night around the world are equal in length
Term
Weather
Definition
The conition of the Earth;s atmosphere at a given time and place
Term
Climate
Definition
The typical weather conditions of a region over a lond period of time
Term
Precipitation
Definition
Falling water droplets in the form of rain,snow sleet, or hail
Term
Vegetation region
Definition
an area that has similar plants
Term
Savanna
Definition
A vegetation region with a mix of glassland and scattered trees
Term
Desert
Definition
a region wtih plant specially adapted to dry conditions
Term
Gobal warming
Definition
an increase in the average temperature of the Earth's atmosphere
Term
Greenhouse effect
Definition
The trapping of the suns heat by gases in the Earth's atmosphere
Term
Greenhouse gas
Definition
any gas in the atmosphere that contributes to the greenhouse effect
Term
Fossil fuels
Definition
fuels such as coal, oil, and natural gas
Term
desertification
Definition
the process in which farmland becomes less productive because the land is degraded
Term
Sustainable
Definition
Using natural resources in a way that they exist for future generations
Term
Crabon Dioxide
Definition
a gaas composed of carbon and oxygen
Term
emissions
Definition
substances dischanged into the air
Term
Degraded
Definition
of lower quality
Term
magma
Definition
molten rock
Term
continent
Definition
one of seven large landmasses on the Earth's surface
Term
tectonic plate
Definition
large rigid section of the Earth's crust that is in constant movement
Term
Earthquake
Definition
a sudden movement of the Earth's crust followed by a series of shock
Term
Ring of fire
Definition
a zone of volcanoes around the Pacific Ocean
Term
Valcanoes
Definition
An opening in the Earth's crust fron which molten rock,asj,and hot gases flow or are thrown out
Term
Weathering
Definition
The gradual physical and chemical breakdown of rocks onn the Eaths surface
Term
Erosion
Definition
The wearing away and movement of weathered materials by water , wind, or ice
Term
sediment
Definition
pieces of rock in the from of sand,stone,or silt deposited by wind,water , or ice
Term
Glacier
Definition
A large, slow-moving mass of ice
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