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Weather Vocab
Weather Unit Vocabulary
36
Science
5th Grade
11/01/2011

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Term
Desalination
Definition
Getting fresh water from sea water
Term
Water Cycle
Definition
The continuous movement of water between Earth’s surface and the air, changing from liquid to gas to liquid
Term
Evaporation
Definition
the slow changing of a liquid into a gas
Term
Water Vapor
Definition
water in the form of a gas
Term
Condensation
Definition
the changing of a gas into a liquid
Term
Precipitation
Definition
any form of water particles that fall from the atmosphere and reaches the ground
Term
Groundwater
Definition
precipitation that seeps into the ground and is stored in tiny holes, or pores in soil and rocks.
Term
Aquifer
Definition
an underground layer of rock or soil filled with water
Term
Water Table
Definition
the top of the water-filled spaces in the ground
Term
Spring
Definition
a place where groundwater seeps out of the ground
Term
Reservoir
Definition
a storage area for fresh water supplies
Term
Well
Definition
a hole dug below the water table that water seeps into
Term
Atmosphere
Definition
the blanket of gases that surrounds Earth
Term
Troposphere
Definition
the layer of the atmosphere closest to the Earth
Term
Insolation
Definition
Incoming SOLar RadiaTION; the amount of the Sun’s energy that reaches Earth at a given time and place
Term
Air Pressure
Definition
The force put on a given area by the weight of the air above it.
Term
Barometer
Definition
a device for measuring air pressure
Term
Isobar
Definition
a line on a weather map connecting places with equal air pressure
Term
Wind
Definition
air that moves horizontally
Term
Sea Breeze
Definition
wind that blows from the sea to land
Term
Land Breeze
Definition
wind that blows from the land to sea
Term
Coriolis Effect
Definition
the curving of the path of a moving object caused by Earth’s rotation
Term
Convection
Definition
– the flow of heat through a liquid or a gas, causing the hot parts to and cooler parts to
Term
Convection Cell
Definition
a circular pattern of air rising, air sinking, and wind.
Term
Air Mass
Definition
– a large region of the atmosphere where the air has similar properties throughout
Term
Front
Definition
a boundary between air masses with different temperatures
Term
Cold Front
Definition
a front where cold air moves in under a warm air mass
Term
Warm Front
Definition
a front where warm air moves in over a cold air mass
Term
Thunderstorm
Definition
the most common severe storm, formed in cumulonimbus clouds
Term
Tornado
Definition
a violent, whirling wind that moves across the ground in a narrow path
Term
Hurricane
Definition
a very large, swirling storm with very low pressure at the center
Term
Storm Surge
Definition
a great rise of the sea along a shore caused by low air pressure.
Term
Weather
Definition
what the lower atmosphere is like at any given place and time
Term
Climate
Definition
the average weather pattern of a region
Term
Humidity
Definition
the amount of water vapor in the air
Term
Relative Humidity
Definition
a comparison between how much water vapor is in the air and how much the air could hold at a given temperature if it were full
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