Show:
Elements of Weather
Clouds
Water Cycle
Climate
What Influences Weather?
100
A thermometer measures temperature.
What device measures temperature?
100
Low-altitude clouds cool Earth. High-altitude cloud absorbs energy that radiates from Earth.
How do clouds affect climate?
100
The continuous movement of water between the atmosphere, land, oceans, and living things.
What is the water cycle?
100
Climate is determined by temperature and precipitation.
What two factors determine climate?
100
A large volume of air in which temperature and moisture are nearly the same throughout.
What is an air mass?
200
The transparency of the atmosphere.
What is visibility?
200
A collection of small water droplets or ice crystals that are suspended in air.
What are clouds?
200
The faster water molecules move, the faster the water moves.
How do water molecules affect the speed of the water?
200
The higher the latitude, the colder the temperature, Temperature affects climate.
How does latitude affect climate?
200
An air mass takes on the temperature and humidity of the land below it.
What two factors does an air mass affect?
300
Air pressure and density decrease with altitude.
How is air pressure and density related to altitude?
300
Solar energy drives water cycle which provides energy for cloud formation.
How does solar energy play a role in cloud formation?
300
They bump into each other and expand.
How do water droplets get bigger?
300
Surface features of an area combine.
How does topography form?
300
They form between two air masses.
Where do fronts form?
400
Factors such as temperature, humidity, precipitation, air pressure, wind, and visibility.
What factors describe weather?
400
Frontal and orographic lifting process cool air enough to form clouds.
What processes cool air enough to form clouds?
400
Water is always moving around Earth in a water cycle.
What is always moving around Earth in a cycle?
400
Lower atmosphere is warmed by Earth's surface below it.
How is the lower atmosphere warmed?
400
Air pressure differences affect both wind speed and wind direction at a location.
What factors does air pressure affect?
500
Stationary and moving forms of technology can collect weather data.
What are some ways to collect weather data?
500
They form when air is lifted or pushed up into the atmosphere for air to be cooled.
When do clouds form?
500
Energy from warm currents in transferred to colder water or the atmosphere, changing local temperatures and humidity.
How is temperature and humidity changed by ocean currents?
500
Cold currents cool air in coastal areas and warm currents warm the air in coastal areas.
How do ocean currents affect climate?
500
High pressure systems produce clear weather. Low pressure systems produce rainy weather.
How do different pressure systems affect us?