Elements of Weather
This element of weather, in many parts of the world, changes with the seasons and is the measure of how warm or cold it is outside.
What is temperature?
Because air molecules spread out and speed up when they are heated, warm air does this.
What is rises?
Weather maps are created by these scientists, who specialize in the study of Earth's atmosphere and weather.
What are meteorologists?
The layer of Earth's atmosphere where all weather happens, including the forming of clouds.
What is the troposphere?
Clear, sunny weather is due to a given area experiencing this type of air pressure.
What is high air pressure?
In simple terms, this element of weather is the movement of air across the Earth's surface.
What is wind?
Because air molecules contract and slow down when they are cooled, cold air does this.
What is sinks?
The symbols "H" and "L" on weather maps represent these.
What are high and low pressure areas?
When stratus clouds form close to the Earth's surface, they're called this.
What is fog?
Cloudy weather with a chance of precipitation is due to a given area experiencing this type of air pressure.
What is low air pressure?
This element of weather comes in many forms, including rain, hail, sleet, and snow.
What is precipitation?
When warm air moves in to replace cold air it is called this, bringing some rain at first, followed by clear skies and warm weather.
What is a warm front?
Weather maps have become much more accurate over the years thanks to these special, high-tech objects, which orbit high above the Earth.
What are satellites?
When water vapor (a gas) travels high enough into the Earth's atmosphere, it cools and condenses, creating these, which stick to other particles in the air to form clouds.
What are water droplets?
This important tool measures atmospheric pressure.
What is a barometer?
The amount of moisture in the air. Since warm air can hold more moisture than cold air, this element of weather is usually experienced in the summer.
What is humidity?
When cold air moves in to replace warm air, bringing heavy rains, high winds, and cold temperatures, it is called this.
What is a cold front?
On weather maps, these are represented by a solid red line and red semi-circles that move across the map.
What are warm fronts?
These big, white, puffy clouds are usually signs of good weather.
What are cumulus clouds?
Atmospheric pressure is the weight of the air above a certain location. The fact that we experience air pressure at all is due to this very important force, which pulls air molecules down towards the Earth.
What is gravity?
The weight of air over a given area.
What is atmospheric pressure?
When a cold front and a warm front meet up and neither moves out of the way, it is called this, which typically brings long, rainy days.
What is a stationary front?
On weather maps, these are represented by solid blue lines and blue triangles that move across the map.
What are cold fronts?
When cumulus clouds grow very tall, they can turn into these types of clouds, which can cause severe weather. The name of these clouds is also fun to say, once you get the hang of it!
What are cumulonimbus clouds?
Changes in atmospheric pressure mainly depend on two things: the weight of the atmosphere over a certain area, and this, which affects the speed at which air molecules move.
What is temperature?