A large body of air with roughly the same temperature and humidity throughout.
100
What is a high pressure system?
A region experiencing air pressure significantly greater than r\the surrounding atmosphere.
100
What is run off?
Water that runs over the land to waterways, being neither absorbed into the earth, nor evaporated into the air
100
If you leave a bowl of room-temperature soil and a bowl of room-temperature water out in the sun for 20 minutes, which would have a higher temperature?
the water
100
In the US, what direction do prevailing weather patterns tend to move?
west to east
200
What is air pressure?
The force of air molecules pressing on a surface
200
What is humidity?
The amount of water vapor in the air
200
What is a warm front?
The boundaries between a mass of warm air moving to replace cold air
200
After bringing the bowls of soil and water in from the sun after 20 minutes, which will be warmer? Explain
The water because it releases heat slower than the soil
200
What is the name for the boundary between two different air masses of differing temperature, air pressure, and humidity?
front
300
What is a cold front?
The border between a mass of cold air moving to replace cold air
300
What is jet stream?
High wind speeds of about 10-15 km above the surface of earth caused by cold polar air meeting warm equatorial air
300
What is the water cycle?
The process by which water evaporates from the surface of earth by the suns energy and later cools and condenses into precipitation to recycle water and begin the cycle again.
300
Based on the map on page 147, what area of the country most likely has no sunshine or clouds?
Missouri and Arkansas
300
What is the primary cause of Earth;s weather systems?
uneven heating of the Earth's surface by the sun
400
What is condensation?
A face change in which a gas changes to a liquid and releases heat energy to its surroundings
400
What is a low pressure system?
a region experiencing air pressure significantly lower than the surrounding atmosphere
400
What is weather?
Short term changes in atmosphere conditions such as rain fall, cloud cover, air pressure and temperature
400
Based on the map on page 147, what weather will southern Idaho most likely be experiencing?
A low pressure system causing cloudy and rainy weather
400
In what phase change does water absorb heat energy?
an ice cube melting
500
What is evaporation?
the phase change in which a liquid changes to a gas and absorbs heat from its surroundings
500
What is precipitation?
Water that falls to earth in various forms, such as rain snow or hail.
500
What is wind?
Air moving from a high pressure zone to a low pressure zone
500
Imagine your area is warm and sunny. The weather forecast says a low pressure system will move into your area. What weather is most likely coming?
cloudy and rainy weather
500
A weather forecast says that a high-pressure area will soon move will soon move into your area. If the skies are overcast, what will happen when the high-pressure area moves in?