Shared Flashcard Set

Details

G. Green
Weather
62
Science
7th Grade
04/28/2014

Additional Science Flashcards

 


 

Cards

Term
Why is there uneven heating of the Earth's surface?
Definition
Differences in the Earth's surface such as heat redistribution by air and water currents is why there is uneven heating of the Earth's surface.
Term
How is this heat redistributed?
Definition
Heat from the Sun is absorbed by the Earth's surface, which then heats the air above it.
Term
Humidity
Definition
Amount of water vapor in the air
Term
Weather
Definition
State of the atmosphere at a specific time & place
Term
Wind
Definition
Air moving in a specific direction
Term
Temperature
Definition
Measure of average amount of motion in molecules
Term
Anemometer
Definition
Measures wind speed
Term
Wind vane
Definition
Measures wind direction
Term
Fog
Definition
Stratus cloud formed near the ground
Term
What are three factors that determine the shape and height of clouds?
Definition
Temperature, pressure and amount of water vapor in the air
Term
Prefix of high elevation
Definition
Cirro
Term
Low elevation
Definition
Strato
Term
Middle elevation
Definition
Alto
Term
Stratus characteristics
Definition
Form layers, or smooth, even sheets in the sky. Usually form at low altitudes
Term
Cumulus characteristics
Definition
Masses of puffy, white clouds often with flat bases
Term
Cirrus characteristics
Definition
Appear fibrous or curly. High, thin, white, feathery clouds made of ice crystals.
Term
Clouds associated with rain or snow have which Latin term associated with them?
Definition
Nimbus
Term
What are the four types of precipitation?
Definition
The four types of precipitation are rain, snow, sleet or hail.
Term
What factor determines what type of precipitation will fall?
Definition
The factor that determines which type will fall is air temperature.
Term
What is the first step in forming a cloud?
Definition
Water evaporates
Term
What is the second step in forming a cloud?
Definition
Warm water vapor rises
Term
What is the third step in forming a cloud?
Definition
Water vapor cools and condenses around dust
Term
What is the fourth step in forming a cloud?
Definition
Water droplets form clouds
Term
Thunderhead in latin form
Definition
Cumulonimbus
Term
Low carpet of rain clouds in latin form
Definition
Nimbostratus
Term
Middle level puffy cloud
Definition
Altocumulus
Term
Air mass
Definition
A large body of air that has properties similar to the part of Earth's surface over which it develops
Term
What is the difference between a cold front and a warm front?
Definition
A cold front occurs when colder air advances toward warm air and is shown as a blue line with triangles on a map but a warm front occurs when warmer air advances over colder air and is shown as a red line with red semicircles.
Term
What causes lightning?
Definition
Inside a storm cloud, warm air is lifted rapidly as cooler air sinks. When currents flow between regions of opposite electrical charge, lightning flashes. Lightning can occur within a cloud, between clouds, or between a cloud and the ground.
Term
What causes thunder?
Definition
Thunder is caused by rapid heating of air around a bolt of lightning.
Term
The difference between wind speed and direction in a tornado.
Definition
Wind shear
Term
Powerful storms that are created over oceans.
Definition
Hurricane
Term
A weather map that uses symbols
Definition
Station model
Term
A line that connects points of equal temperatures
Definition
Isotherm
Term
The study of weather
Definition
Meteorology
Term
A line that connects points of equal pressure
Definition
Isobar
Term
Someone who studies weather
Definition
Meteorologist
Term
A violently rotating column of air in contact with the ground
Definition
tornado
Term
A boundary between two air masses of different densities
Definition
front
Term
high pressure system
Definition
rotate clockwise, good weather
Term
low pressure system
Definition
rotate counterclockwise, poor weather (rain, storms)
Term
front
Definition
boundary between two air masses, always precipitation at fronts
Term
stationary front
Definition
neither one advances (stalemate)
Term
thunderstorms
Definition
severe rain storms
-cumulonimbus clouds
Term
damage
Definition
flooding, strong winds, hail
Term
lightning
Definition
rapid up & down movement of air causes buildup of charge (like static elec.)
Term
Thunderstorms
Definition
severe rain storms, cumulonimbus clouds
Term
tornado alley
Definition
area in Midwest where 90% of Earth's tornadoes occur
Term
When in the tornado season?
Definition
April to June
Term
How fast in mph can a tornado reach up to?
Definition
500 mph
Term
What numbers are the Fujita scale (what to what)
Definition
0-5
Term
damage
Definition
flooding, strong winds, hail
Term
what are the most powerful storms
Definition
hurricanes
Term
Characteristic of a hurricane
Definition
Form over & fueled by warm water and lose power over land
Term
What are blizzards?
Definition
Severe winter storms
Term
What do blizzards have
Definition
High winds, low visibility, and they have to persist for 3 hours
Term
What is a meteorologist?
Definition
A person who studies weather
Term
What is meteorology?
Definition
The study of weather
Term
Station model
Definition
A combination of symbols on a weather map
Term
Isotherm
Definition
Line connecting points of equal temperature
Term
Isobar
Definition
Line connecting points of equal pressure
Term
Barometer
Definition
Instrument used to measure air pressure
Supporting users have an ad free experience!