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Weather

Weather Vocabulary

TermDefinition
Water Cycle - movement of water between the atmosphere, land, oceans, and even living things.
Evaporation - Water turning into water vapor.
Transpiration - Plants release water into the environment through their leaves.
Sublimation - When solid water turns directly into vapor.
Condensation - The change of water from a gas to a liquid.
Precipitation - Any form of water that falls to Earth.
Weather - the condition of Earth’s atmosphere at a certain time and place.
Humidity - Amount of water vapor in the air.
Relative Humidity - Amount of water vapor in the air compared to the amount of water vapor needed to reach saturation.
Air Pressure - The force of air molecules pushing on an area.
Wind - movement of air caused by differences in air pressure.
Air mass - a large volume of air in which temperature and moisture content are nearly the same throughout.
Front - A boundary of air that forms between 2 air masses.
Jet Stream - long distance winds that travel above global winds for thousands of kilometers.
Thunderstorm - an intense local storm that forms strong winds and heavy rain along with lightning, thunder, and hail.
Lightning - an electric discharge charged that happens between a positively charged area and a negatively charged area.
Thunder - the sound created by the rapid expansion of air along a lightning strike.
Hurricane - a tropical low pressure system with winds blowing at speed of 74 mi/h or more.
Storm Surge - When a hurricane moves into a coastal area, it pushes huge amounts of the ocean onto land.
Tornado - a destructive, rotating column of air that has very high wind speeds and that is sometimes visible as a funnel-shaped cloud.
Sink Holes - holes in the ground that form when a cove collapses.
Wildfires - Uncontrolled fires burning in natural areas.
Muck fires - when dry grass and trees are ignited easily by a lightning strike.
Climate - describes the weather conditions in an area over a long period of time.
Global Winds - Wind systems that occur at or near Earth’s surface.
Westerlies - Westerlies are winds that blow 30 degrees and 60 degrees latitudes in both hemispheres. Wind blows from the west to the east.
Trade Winds - Winds that blow between 30 degrees latitude and the equator in both hemispheres. Winds blow from the East to the West.
Local winds - the movement of air over short distances.
Sea Breeze - a local wind that blows from the sea to the land during the day.
Land Breeze - a local wind that blows from the land to the sea during the night.
Created by: 33071426