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When the sun warms water, which resulting process occurs?
Evaporation
Which is most responsible for the changes in seasons?
the tilt of Earth on its axis
In North Carolina, the wind is blowing from the north. If the wind changes direction and begins to blow from the south, what will most likely result?
The temperatures will increase.
Which best explains why a storm that affects an area in the western United States may affect an area in the eastern United States a few days later?
The jet stream winds blow storms from west to east.
One morning, a student notices that the grass in the area is wet, although it had not rained during the night. What could have caused the grass to be wet?
When the air cooled above ground during the night, water vapor condensed on the grass.
Which best describes the cause of day-to-day weather changes?
moving air masses
Students report that the sky in their area has mostly cirrus clouds. What are most likely the weather conditions in the area?
fair
Which best describes a hurricane?
a low-pressure weather system
Which instrument is best used to predict weather changes?
a barometer
How does the energy from the sun influence the water cycle?
by turning liquid water into water vapor
How do plants return water back into the environment?
Transpiration
Water droplets forming on the outside of a cold glass of water on a hot, summer day is an example of which part of the water cycle?
Condensation
After lake water flows through a dam, which processes are most responsible for helping replace the water in the lake?
precipitation and runoff
Why are liquids sometimes used in a thermometer?
because most liquids expand when heated and contract when cooled
On a June day, a warm, moist air mass slowly passes over a colder air mass in North Carolina. What will most likely happen next?
Rain will fall.
Which is most responsible for the movement of weather systems across the United States?
Prevailing Westerlies
Which best describes how the Gulf Stream affects the areas along the coast of North Carolina?
It causes land temperatures along the coast to be milder in the winter.
Which will most likely result from a low-pressure weather system?
cloudy conditions
Which has the greatest effect on wind speed?
Air Pressure
A change in which weather condition would most likely result in a change in wind speed?
Temperature
Michael observes the air pressure daily. Over the last couple of days the air pressure has been dropping. What weather will Michael most likely observe as a result?
increasingly cloudy skies and possible storms
Which statement best describes how weather patterns along the equator differ from weather patterns in the mid latitudes?
A. Temperatures along the equator vary with the seasons, while temperatures in the mid latitudes are consistently cold.
B. Temperatures along the equator vary with the seasons, while temperatures in the mid latitudes are consistently warm.
C. Temperatures in the mid latitudes vary with the seasons, while temperatures along the equator are consistently warm.
Temperatures in the mid latitudes vary with the seasons, while temperatures along the equator are consistently warm.
Which best describes why wind movement is predictable?
Air moves from areas of high pressure to low pressure.
Which statement best explains how wind is formed?
A. Air is warmed by radiation and air flow increases as a result of the warming.
B. Pressure decreases as a result of frictional contact with earth causing air to flow more freely.
C. Unequal heating of the land causes air to flow from areas of higher pressure to areas of lower pressure.
Unequal heating of the land causes air to flow from areas of higher pressure to areas of lower pressure.
What type of weather is usually found in low pressure areas?
warmer, possible rain, stratus clouds
What happens to the temperature when a warm air mass replaces a cold air mass?
Temperature rises.
Which has the greatest effect on the temperature of a region?
the amount of sunlight it gets
What form of precipitation, in which ice crystals freeze over and over, frequently occurs during thunderstorms?
Hail
Which statement is accurate about seasonal temperatures in North Carolina?
A. The temperatures are varied during each of the different seasons.
B. The average temperature stays close to 60°F during most seasons.
C. It is difficult to notice the change in temperatures between seasons. D. It is difficult to predict what the temperatures will be during each season.
A. The temperatures are varied during each of the different seasons.
Which conditions will result in high winds?
A. large differences in air pressure
B. heavy rains over several days
C. increase in evaporation rates
D. presence of cirrus clouds
A. large differences in air pressure