The conditions of the atmosphere at a given location for a short periodof time.
What is weather?
100
This causes most local weather condition changes.
What is movement of air masses?
100
Low-pressure systems usally 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,andigneous?
200
The characteristic weather that prevails from season to season an year to year.
What is climate?
200
The movement of air masses is determinedby two things.
What are prevailing winds and upper air currents?
200
This is the genaral movment of highs andlows across the United States.
What is from west to east?
200
As dencity of air decreases,its presure.
What is deacreases?
300
Most rocks show characteristics that give clues to this.
What are thier formation conditions?
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).
What are thunderstorms, tornadoes, hurricanes, ice storms, and blizzards?
300
This type of air mass is warm and humid.
What is maritime?
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 sectgion of the Earth's surface and takes on the conditions of temperature and humidity from that location.
What is air masses?
400
This is likely to occur at fronts.
What is precipitation?
400
This is crucial for humans to be ab le to prepare for and repsond to hazardous weather conditions.
What is sufficient warning?
400
Instruments used to measure air presure.
What are barometers?
500
This rock can float.
What is pumice?
500
Weather conditions at a location are determined primarily by 3 things.
What is temperature, humidity, and pressure of air masses over that location?