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Earth Science- Abby

Flashcards for Miss DiVito's 7th grade end of year review

TermDefinition
Fluid Is anything that flows and fills its container such as a liquid or gas.
Front The boundary separating 2 or more different types of air masses.
High Pressure Area/ System An area where the atmospheric pressure is greater than the rest of the atmosphere.
Hurricane Is another name for a tropical cyclone that typically forms in the Atlantic Ocean.
Lightning Is an electrostatic discharge or the sudden and momentary flow of electric charge through the atmosphere between the clouds and the ground.
Low Pressure Area/ System Is an area where the atmospheric pressure is lowest compared to the surrounding area. Storms like tropical cyclones are called low-pressure cells.
Occluded Front Is formed when a cold front overtakes a warm front and in the process "cuts off" the warm front from contact with the ground.
Stationary Front Is a boundary between two different air masses, neither of which is strong enough to replace the other.
Storm Is any disturbance in the atmosphere, especially affecting its surface, and strongly implying severe weather marked by strong wind, thunder, lightning, and heavy precipitation.
Storm Surge Is an offshore rise of the water caused primarily by high winds pushing on the ocean's surface which force the water to pile up higher than the ordinary sea level.
Thunder Is a sonic shock wave (sonic boom) created from the the rapid expansion & explosion of the air molecules surrounding and within a bolt of lightning, due to increases in pressure and temperature.
Thunderstorm Is a weather phenomena that results from the rapid upward movement of warm, moist air inside air masses or at fronts and are characterized by the presence of cumulonimbus clouds, lightning, thunder, and different types of precipitation.
Tornado Is a violent dangerous, rotating column of air that is in contact with both the surface of the earth and a cumulonimbus cloud or in rare cases, the base of a cumulus cloud.
Tropical Cyclone Is a storm system that develops over large bodies of warm water at specific temperatures and is characterized by a large low-pressure center surrounded by numerous rotating thunderstorms that produce strong winds and heavy rain.
Typhoon Is the name given to a tropical cyclone that typically forms in the western Pacific & Indian Oceans.
Warm Front Is defined as the leading edge of a warm air mass overtaking a cooler, slower air mass.
Runoff Liquid precipitation that is not absorbed into the ground. Water that flows across the surface of the Earth
Water Cycle The repeating processes that move water in different forms between Earth's surface and the atmosphere.
Water Vapor Water in the atmosphere that is in the form of a gas.
Weather The condition of Earth's atmosphere at a particular time and place.
Air Mass Is a huge body of air that forms over a region characterizing it with a similar temperature, humidity and pressure at any given height.
Cold Front Is defined as the leading edge of a cooler air mass, replacing or overtaking a warmer air mass.
Precipitation Any type of liquid or solid water that falls to Earth's surface.
Sublimation The process of water changing from a solid directly into a gas.
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