The conditions of the atomophere at a given location for a short period time
What is weather?
200
The movement of air masses is determined by two things
What are prevailing winds and upper air currents?
200
This is a general movement of highs and lows across the United States
What is from west to east?
200
As the density of air decreases, its pressure
What is decreases?
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/
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 Tropical?
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 Earth's surface?
400
This is likely to occurs at fronts
What is precipitation?
400
This is crucial for humans to be able to prepare for and repond to hazardous weather conditions
What is sufficient warning?
400
Instruments used to measure air pressure
What are barometers?
400
This model shows how types of rocks or rock material may be transformed from on 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?
500
These systems generally bring fair weather
What is high pressure?
500
Two was substances enter the atmosphere
What are natturally and from human activity?
500
Most air pollution comes from
What is burning fossil fuels?
500
This rock can float
What is pumice?
500
Weather conditions at a location are determined primarily by three things
What are temperature, humidity, and pressure of air masses over that location?