What Causes Weather? (1)
What is the layer of gases around Earth called?
The atmosphere
In which layer does weather happen?
The troposphere
What is the movement of water from Earth to the sky and back called?
the water cycle
What two things drive the water cycle?
Gravity and energy from the Sun
Are satellites a cause of weather? Yes or no?
No (they only watch weather)
What is the weight of the air pressing down on Earth called?
Atmospheric pressure
What happens to atmospheric pressure as altitude goes up?
It decreases. (↓)
What is it called when a liquid changes into a gas?
Evaporation
What is it called when a gas changes into a liquid?
Condensation
Why do forecasters use many weather stations?
They need lots of data
What tool measures air pressure?
A barometer
Are places near the equator hotter or colder than places near the poles?
Hotter
What one word means rain, snow, sleet, or hail?
Precipitation
What is it called when a solid changes straight into a gas?
Sublimation
What weather do cirrus clouds bring?
Fair weather
What is the wind that blows from sea to land during the day called? (Daytime, Sea:colder → land:warmer)
A sea breeze
What is the wind that blows from land to sea at night called? (At night, land:cooler →sea:warmer)
A land breeze
What is water that seeps into the ground called?
Groundwater
What happens to evaporation when the air gets warmer?
It increases
What happens to evaporation when the air is full of water vapor?
It stops
What tool measures humidity?
A hygrometer
Which cloud brings thunder, lightning, and heavy rain?
Cumulonimbus clouds
What happens to evaporation when air pressure is high?
It decreases (water doesn't evaporate easily)
Name one factor that affects the water cycle.
air temperature, air pressure, humidity, wind, or landforms
Why do wet clothes dry faster on a windy day?
Wind speeds up evaporation