The process in which plants give off water vapor from their leaves. The pores of the leaves are called stomata.
A place where GROUNDWATER bubbles or FLOWS OUT OF CRACKS in the rocks.
Underground layer of porous rock material containing ground water for wells and springs.
The gas created when water evaporates.
A rapidly whirling, funnel-shaped cloud that stretches down from a storm cloud to touch the ground. It can cause a lot of destruction.
A spacecraft that helps meteorologists see weather systems on Earth.
Radar that is able to detect clouds and precipitation.
Imaginary lines around the Earth parallel to the equator; measured in degrees.
The temperature that air must reach before condensation can occur. The air is saturated with water vapor at this point.
Precipitation that is a mixture of rain and snow.
The attentive watching of something and possible recording of data.
Making a forecast of what will happen in the future based on past experience or evidence.
When air becomes saturated and forms drops of water.
The process in which water soaks into the ground.
The process by which a liquid changes into gas (water vapor).
A low, dark gray layer of cloud that usually produces rain or snow.
A physical property that tells you how hot or cold something is.
A violent storm that forms over tropical (warm) ocean water with wind speed of more than 74 mph. The center of the storm is called the "eye".
A scientist who studies the Earth's weather and climate.
Sunlight that hits Earth at a 90 degree angle.
Sunlight that hits earth at any angle other than 90 degrees.
Height above sea level or the Earth's surface. (The temperature decreases the higher up in the air you go. Air is less dense and cannot hold the heat).
The height of an area above sea level.
An air mass of higher than normal pressure usually associated with clear skies and beautiful ("Happy") weather. Represented by an "H" on a weather map. The winds spiral outward.
A weather pattern created by the warming of the waters off the west coast of South America, which pushes warm waters and heavy rains toward the Americas and produces drought conditions in Australia and Asia.
The process by which the Earth's atmosphere absorbs heat.
The hypothesized rise in Earth's average temperature from excess carbon dioxide.
Rain bearing clouds that are dark and ragged at the edges.
Water that has soaked into the ground that supplies wells and springs.
The Earth spinning around once every 24 hours, resulting in day and night; one complete turn.
The Earth moving in a path(orbit) around the sun, resulting in one Earth year (365 days).
Forms when a cold air mass moves under a warm mass & pushes the warm air upward. It creates thunderstorms but cooler air follows.
The movement of air caused by cool air over the ocean moving toward the land.
The movement of air created by cool air over land moving toward the ocean.
The layer of air in the Earth's atmosphere where weather takes place; just above the Earth's surface (ground).
The layer of air in the Earth's atmosphere just above the troposphere where the ozone layer is located.
The global winds that blow constantly from west to east. They are located in the "temperate" zones on Earth.
The boundary between two air masses (where two air masses come together).
A snowstorm with high winds and enough snowfall that you can only see up to 1/4 of a mile.
A great rise of the ocean water along a shore caused by very strong winds.
Any storm with a low pressure center that causes a circular pattern of winds to form and rotate counter-clockwise(left).
An ocean movement; a large stream of water that flows in the ocean.
A continuous circulation of water in the environment through evaporation, condensation, precipitation and runoff.
A type of cumulus cloud that is tall and gray and associated with thunderstorms.
The climate of a very small area or habitat.
A storm with thunder, lightening, heavy rain, and sometimes hail formed from cumulonimbus clouds.
Forms when warm air slides up and over a cold air mass; it brings gentle rain or light snow followed by warmer weather.
The study of the Earth's atmosphere including the weather and climate.
The prediction of the weather conditions for a given area and time.
The force or weight that air puts on objects.
A large swirling mass of rising warm air that usually brings wet, stormy weather. The winds spiral inward.
Wind that forms in a small area due to temperature change.
Global winds that blow constantly from the same direction.
A gauge (instrument) used for measuring wind speed and direction.
Precipitation that has fallen as sleet and was shot back up into the clouds and layered over and over again with ice before finally falling to the ground.
Drops of fresh water that fall as precipitation from clouds.
Precipitation falling from clouds in the form of ice crystals.
Fluffy, white clouds that look like cotton. They are found in the middle layers of the atmosphere and are also called "fair weather" clouds.
Dark, gray clouds that form a low layer like a blanket and sometimes bring light rain or snow showers.
When a cold and warm front meet and do not move.
The overflowing of a body of water, like a river, onto the surrounding land.
A temperature scale that defines the freezing point of water as 0 degrees and the boiling point of water as 100 degrees
A set of events or actions that repeats.
A temperature scale that defines the freezing point of water as 32 degrees and the boiling point of water as 212 degrees.
The temperature at which a liquid turns into a solid (32 degrees).
The state of a substance with no definite shape but definite volume.
When a mass of air gets carried up above the boundary between a cool and cold air mass.
Helps forecasters see the movement of thunderstorms and tornadoes.
Instrument used to measure rainfall.
A weather instrument used for measuring air (atmospheric) pressure
A cloud on the ground, A stratus cloud that forms when air is cooled to its dew point near the ground.
Absorbs harmful ultraviolet radiation from the sun in the stratosphere
Taking something in, such as, water into the ground.
the process in which water pools in large bodies (like oceans, seas and lakes)
The part of the water cycle when water vapor turns to water droplets and forms clouds. This process changes a gas into a liquid.
Any form of water that falls to the Earth's surface from clouds; Snow, Sleet, Rain, Hail.
The mixture of gases surrounding the Earth. This mass of gases is divided into several layers and is composed mainly of nitrogen and oxygen.
Water that cannot soak into the ground and instead flows across the land and accumulates in waterways.
What the atmosphere is like at a given time and location (temperature, wind, clouds, precipitation).
The amount of water vapor in the air.
wind (weather) vane
A tool used to determine wind direction.
A tool used to gather weather information high in the atmosphere.
An instrument fused or measuring the amount of moisture(humidity) in the air.
A tool used to measure temperature.
A large body of air with nearly the same temperature and level of humidity throughout
A map that uses symbols to show weather data.
The average of all weather conditions through all seasons over a long period of time.
An area that has similar average temperatures and precipitation throughout
The imaginary line that divides Earth into its northern and southern hemispheres
Wispy, feathery clouds made of ice crystals that form at high altitudes (levels)
The low-rainfall region that exists on the leeward (downwind) side of a mountain range. This is the result of the mountain range's causing precipitation on the windward (upward) side.
Facing the direction TOWARD which the wind is blowing;
Facing the direction FROM WHICH the wind is blowing. The side of the mountain range facing the wind.
Lines running north to south between the poles, used to measure distance in degrees east and west of the Prime Meridian
Clouds at mid-level that form a light sheet that lets the sun or moon show as a bright spot.
High level, very light layers of cloud.
in the same direction as the rotating hands of a clock
in the direction opposite to the rotation of the hands of a clock
one half of the sphere that makes up earth's surface
a high-speed wind current moving from west to east around the earth
the swift, warm Atlantic current that flows from the Gulf of Mexico, around Florida, and up the east coast of North America