Show:
Precipitation
Clouds
Cooling
Potpourri
Atmospheric Water
100
What size are raindrops?
Between 0.5 and 5 mm in diameter
100
What are three forms of clouds?
Stratus, cirrus, cumulus
100
What does the troposphere contain?
Millions of suspended particles of ice, salt, dust, and other solid matter
100
What is the method scientists use in attempting to cause or increase precipitation?
Cloud seeding
100
In what form does water in the atmosphere mainly exist?
Water vapor
200
What is the most common form of solid precipitation?
Snow
200
Cloud seeding might be a way to overcome what problem?
Droughts
200
What is the lowering of the temperature of a mass of air due to rising and expanding?
Convective cooling
200
What do large nuclei form?
Large cloud droplets
200
What is the principal source of atmospheric moisture?
The ocean
300
What do extremely cold temperatures near the ground sometimes produce?
Sleet
300
In what kind of clouds do hail usually form?
Cumulonimbus
300
What may influence the rate of adiabatic change?
Moisture
300
What are visible masses of tiny water or ice particles suspended in the atmosphere?
Clouds and fog
300
What is the amount of water vapor in the atmosphere called?
Humidity
400
What is hail?
Solid precipitation in the form of lumps of ice
400
What two things are clouds classified by?
Form and altitude
400
What are most clouds formed by?
Convective cooling
400
What is deposition?
How frost is formed
400
What is an instrument used to measure relative humidity?
Psychrometer
500
What is an instrument for measuring the amount of rainfall?
Rain gauge
500
What do clouds result from?
Condensation of water vapor throughout a large volume of air
500
What is cooling produced when wind carries warm, moist air across a cool ocean or region of land?
Advective cooling
500
What is the process by which water vapor changes directly into ice without becoming a liquid?
Deposition
500
What is used to measure humidity at high altitudes?
Electric hygrometer