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 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 movementof air masses is determined by 2 things
What are prevailing winds and upper air currents?
200
This si the general movement of highs and lows across the United States
What is from east and west?
200
As the density of air decreases pressure
What is decreases?
300
Most rocks show characteristics that give clues to this
What is the rock cycle?
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
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 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 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 precipitation?
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 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 temperature, humidity, and pressure of air masses over that location?