Weather and climate unit vocabulary
Terms in this set (30)
The force of air molecules pushing on an area
The outer layer of gases of a large body in space such as a planet or star
An instrument that measures air pressure in the atmosphere
The atmosphere is made up of layers of gases. These layers of gases push down on Earth. This push is called barometric pressure.
All living organisms on earth in the air, on the land, and in the waters
Celsius is a scale on which temperature is measured. On the Celsius scale, water is frozen at 0 degree and boils at 100 degrees.
You can predict the weather by looking at the clouds in the sky. Some clouds are formed high in the sky and look like feathers
The characteristic weather conditions in the area over a long period of time
Where does rain come from? Clouds are formed by tiny drops of water in air. When these drops get bigger and heavier, they fall to Earth. That's where rain comes from
Sometimes cumulus clouds move upward with rising air. As they rise, they become dark and big.
Cumulus clouds are white and puffy. They are made up of water droplets. They look like balls of cotton wool in the sky. Cumulus clouds are flat at the bottom and rounded at the top.
The temperature at which air with a given amount of water vapor will reach saturation
a prolonged shortage of rainfall
the temperature at which a liquid turns into a solid
The boundary between air masses
a rotating, funnel-shaped cloud: Funnel clouds do not touch the ground.
the slow warming of Earth's atmosphere due to climatic change
Layered lumps or balls of ice that fall from cumulonimbus
The amount of water vapor inair
A tropical low-pressure system with sustained winds of 120 kilometers per hour or more
Air masses form over large areas that have similar weather. A front is the boundary along which two air masses meet or collide.
A stream of water that flows through the ocean in a regular patter
Any type of liquid or solid water that falls to earths surface, such as rain, snow, or hail
Stratus clouds are often gray clouds that cover the entire sky. Stratus clouds are often associated with light rain or drizzle.
Sometimes, when it rains, you see big flashes of light in the sky. Lightning superheats the air. Superheating the air causes a loud noise called thunder.
A storm with lightning and thunder
A violently rotating column of air stretching from a cloud to the ground
A hurricane usually starts as a low pressure system over warm tropical oceans. As the intensity increases, it develops into a tropical disturbance
A typhoon is a severe tropical storm that originates in the Pacific Ocean, west of the International Dateline
The condition of earths atmosphere at a particular time and place