The conditions of the atmosphere at a given location for a short period of time.
What is weather?
100
This causes most local weather condition changes.
What is movement nof air masses?
100
Low-pressure systems usually bring this.
What are clouds and unstable conditions?
100
The two most prevalent gases in our air.
What are oxygen and nitrogen?
200
The three classes of rocks.
What are sedimentary, metamorphic, and igneous?
200
The characteristic weather that prevails from season to seasonand year to year.
What is climate?
200
The movement of air masses is determined by 2 things.
What are prevailing winds and upper air currents?
200
This is general movement of highs and lows across the U.S.
What is from west to east?
200
As the density of air decreases, its pressure.
What is decreases?
300
Most rocks show characteristics that give clues to this.
What are their formation conditions?
300
The cause of weather.
What is the uneven heating of Earths surface?
300
Boudaries between air masses.
What are fronts?
300
Hazardous weather conditions.
What are thunderstorms, tornadoes, hurricanes, icestorms, and blizzards?
300
This type of air mass is warm and humid.
What is Maritime Tropical?
400
This model shows how types of rock or rock material may be transformed from one type of rock to another.
What is the rock cycle?
400
These form when air remains nearly stationary over a large section of earths surface and takes on the conditions of temperature and humidity from that location.
What are air masses?
400
This is likely to occur at fronts.
What is preticipation?
400
This is crucial for humans to be able to prepare for and respond to hazardous weather conditions.
What is sufficient warning?
400
Instruments used measure air pressure.
What are barometers?
500
This rock can float.
What is pumice?
500
Weather coditions at a location ared determined primarily by 3 things.
What are temperature, humidity, and pressure of air masses over that location?