Weather Basics
What is the atmosphere?
This is the layer of air that surrounds Earth
What instrument measures temperature?
Thermometer
Name one feature of a thunderstorm.
Lightning (Accept: heavy rain, thunder, strong winds, low pressure)
What is climate?
The long-term average weather of a region
Name one greenhouse gas.
Carbon dioxide
What is humidity?
The amount of water vapor in the air
What process changes liquid water into water vapor?
Evaporation
Which severe weather event is an ice storm?
Blizzard
What type of climate does Thailand have?
Tropical
What does latitude measure?
Distance from the equator
In which direction does warm air move?
Upward
What unit is relative humidity measured in?
Percent (%)
What is the main weather feature of a tornado?
Strong swirling winds
What is a feature of polar climates?
Cold all year round
What does altitude mean?
Height above sea level
Wind moves from what type of pressure to what type of pressure?
From high pressure to low pressure
What state change happens at dew point?
Condensation
Where do hurricanes form?
Over the ocean
Which type of climate has very little rainfall and is usually very dry?
Desert
How does climate change as altitude increases?
emperature decreases (it gets colder)
What is the relative humidity at dew point?
100%
What instrument measures air pressure?
Barometer
What is the calm center of a hurricane called?
The eye
Which type of climate has large seasonal temperature differences with hot summers and cold winters, usually found in the middle of continents?
Continental climate
What do greenhouse gases do?
They absorb Earth’s outgoing radiation and trap heat