The conditions of the atmosphere at a given location for a short period of time.
What is weather?
100
Thus causes most local weather condition changes.
What is movement of 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 season and year to year.
What is climate?
200
The movement of air masses is determined by two things.
What are prevailing winds and upper air currents?
200
This is the general movement of highs and lows acroos the United States.
What is from west to east?
200
As the density of air decreases, it pressure...
What is decreases?
300
Most rocks show characteristics that give clues to this.
What are their formation condidtions?
300
The cause of weather.
What is the uneven heating of Earth's surface?
300
Boundaries between air masses.
What are fronts?
300
Hazardous weather conditions (5 answers).
What are thunderstorms, tornadoes, hurricanes, ice storms, and blizzards?
300
This type of air mass is warm and humid.
What is Maritime Tropical?
400
This model shows how types of rock material may be transfered 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 Earth's 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 percipitation?
400
This is curcial for humans to be able to perpare for and respond to hazardous weather conditions.
What is sufficient warning?
400
Instruments used to measure air pressure.
What are barometers?
500
This rock can float.
What is pumice?
500
Weather conditions at a location are determined primarily by 3 things.
What are tmeperature, humidity, and pressure of air masses over that location?