Water Cycle
What process turns water into vapor?
Evaporation
What is an air parcell
A small packet of air the moves as a unit
Win moves from areas of ______ pressure to ____ pressure
High to low
What is a cloud made of?
Tiny droplets of water
What kind of cloud often signals a thunderstorm?
Cumulonimbus
What do we call water vapor turning into liquid?
Condensation
What happens to an air parcel when it is warmer than the air around it?
It rises
What is air pressure?
The weight of air pressing down on Earth
What do we call the process of water vapor turning into cloud?
What type of weather is caused by quickjlu rising warm, moist air?
Thunderstorms
Where does water go after it rains?
Lakes, rivers, soil, runoff/infiltration
What causes an air parcel to cool down as it rises?
Energy transfer to colder surrounding air
What tool measures air pressure?
Barometer
Which part of the troposphere is coldest
Name one condition that causes heavy rainfall
Warm air rising, lot os water vapor, rapid cooling
Why is the sun important to the water cycle?
It provides energy for evaporation
What happens to water vapor in a rising, cooling air parcel?
It condenses it cloud or rain
How can wind push an air parcel into the troposphere
By lifiting it upward where it cools
Why doesnt it rain every time there's a cloud
Droplets must combine and grow heavy first
What kind of storm has strong winds that spin in a circle
Tornado or hurricane
Explain how a cloud can lead to rainfall
Water vapor cools, condense, droplets combine, become heavy, and fall
Why do higher temperatures cause more rainfall in some air parcels
They rise higher, lose mor eenrgy, and cool more
Explain how pressure differences create wind
Air flows from high-pressure zones to low-pressure zones
Describe how clouds form in rising air
Air cools, water vapor condense, droplets form
Explain how unstable air causes wild weather
Rising air leads to energy loss, condensation, cloud formation, and storms