Predicting Weather ESS 5.1.2

What causes the high winds associated with hurricanes?

• rain fall

• humidity

• air pressure

• temperature

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ESS 5.1.2

The polar jet stream is an air current that flows across North America. It flows much faster

in winter than it does in summer. Why is it faster in the winter?

• A. Northern air has more oxygen in winter.

• B. Northern air is warmer in winter.

• C. Northern air is colder in winter.

• D. Northern air is drier in winter.

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ESS 5.1.2

What two factors determine the direction in which prevailing winds blow?

• the rotation of the Earth on its axis and the cool air from the poles

• the revolution of the Earth around the sun and the cool air from the poles

• the rotation of the Earth on its axis and the sun’s uneven heating of the earth

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ESS 5.1.2

When tropical air masses move into North Carolina, which most likely occurs?

• an increase in temperature

• an increase in air pollution

• an increase in atmospheric pressure

• an increase in the number of cirrus clouds

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ESS 5.1.2

Which is most likely to happen when a tropical storm moves from the coast of Africa toward the United States, and water temperatures increase?

• The tropical storm will continue to move westward and decrease in strength.

• The tropical storm will continue to move westward and increase in strength.

• The tropical storm will change direction and begin to move eastward and decrease in strength.

• The tropical storm will change direction and begin to move eastward and increase in strength.

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ESS 5.1.2

Which best describes the Gulf Stream?

• an ocean current which originates in the Gulf of Mexico and causes warm water to travel up the east coast of the United States

• an ocean current which originates in the Gulf of Mexico and causes cool water to travel up the east coast of the United States

• an ocean current which originates in the Gulf of Mexico and causes warm water to travel down the east coast of Mexico

• an ocean current which originates in the Gulf of Mexico and causes cool water to travel down the east coast of Mexico

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ESS 5.1.2

Which is most responsible for guiding the movement of different air masses across the United States?

• the oceans

• trade winds

• the jet stream

• easterly winds

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ESS 5.1.2

How does a large body of water usually affect weather conditions on nearby land?

• It causes the weather to be dryer in the winter.

• It causes the weather to be colder in the winter.

• It causes the weather to be warmer in the winter.

• It causes the weather to be less severe in the winter.

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ESS 5.1.2

What type of weather would MOST likely appear at the location marked X?

• cold and dry

• cold and wet

• warm and dry

• warm and wet

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ESS 5.1.2

Fill in the blank: When the jet stream moves south of North Carolina, the state will most likely experience ______ weather.

• tropical

• hot, dry

• mild

• cold

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ESS 5.1.2