Day Observations

Question

1 sunny and warm
2 cloudy and rainy
3 drop in temperature
4 clear skies and cold temperatures
A student tracks the daily weather. The student’s observations are logged in the table. Which factor in the atmosphere best explains the student’s observations?

(1 point)
Responses

A warm front moved into the area.
A warm front moved into the area.

High levels of moisture are contained within an air mass.
High levels of moisture are contained within an air mass.

A cold front moved into the area.
A cold front moved into the area.

A warm air mass replaced a cold air mass.
A warm air mass replaced a cold air mass.
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Answer 1

The best explanation for the student's observations is:

A cold front moved into the area.

This is supported by the observations of a drop in temperature and clear skies following cloudy and rainy conditions. A cold front typically brings cooler temperatures and can replace a warm air mass, leading to the weather changes described.

Answer 2

A meteorologist uses a weather map to explain an upcoming change in weather. The map shows a blue line with triangles approaching a red line with semicircles. Based on the map, which weather prediction is most valid? (1 point)
Responses

Warm temperatures will replace cold temperatures.
Warm temperatures will replace cold temperatures.

Humidity levels will rise.
Humidity levels will rise.

A significant drop in temperature will occur across the area.
A significant drop in temperature will occur across the area.

There is no chance of precipitation in the forecast.

Answer 3

Based on the description of the weather map with a blue line with triangles (indicating a cold front) approaching a red line with semicircles (indicating a warm front), the most valid weather prediction is:

A significant drop in temperature will occur across the area.

This is because a cold front typically brings cooler air, often resulting in a drop in temperature when it moves in.

Answer 4

Which factor in the atmosphere is most responsible for changes in an area’s temperatures and humidity levels?(1 point)
Responses

amount of precipitation
amount of precipitation

density of air
density of air

movement of large air masses
movement of large air masses

different types of cloud formations
different types of cloud formations

Answer 5

The factor in the atmosphere most responsible for changes in an area’s temperatures and humidity levels is:

movement of large air masses.

Air masses can carry different temperatures and humidity levels, leading to significant changes in weather conditions when they move into an area.

Answer 6

Use the weather forecast from a meteorologist to answer the question.

“Temperatures will plummet late Thursday night through Saturday. All areas across the eastern region of the state are anticipated to be below freezing by Friday morning and again on Saturday morning. Heavy amounts of snow are possible late Thursday into Friday. High winds can also be expected across the area.”

Which news headline best accounts for this change in weather?

(1 point)
Responses

“A Strong Cold Front Threatens the Region”
“A Strong Cold Front Threatens the Region”

“A Warm Front Blankets the Region”
“A Warm Front Blankets the Region”

“A Warm Air Mass Forms over the Region”
“A Warm Air Mass Forms over the Region”

“A Cold Air Mass Exits the Region”

Answer 7

The news headline that best accounts for the change in weather described in the forecast is:

“A Strong Cold Front Threatens the Region.”

This is because the forecast indicates plummeting temperatures, below-freezing conditions, and the possibility of heavy snow, all of which are associated with the arrival of a strong cold front.

Answer 8

Which condition would most likely require the National Weather Service to issue a severe thunderstorm warning?(1 point)
Responses

an air mass developing over a large body of water
an air mass developing over a large body of water

a front moving out of an area
a front moving out of an area

a meeting of two air masses with major differences in temperature and moisture
a meeting of two air masses with major differences in temperature and moisture

a large amount of moisture in the air condensing to form clouds
a large amount of moisture in the air condensing to form clouds

Answer 9

The condition that would most likely require the National Weather Service to issue a severe thunderstorm warning is:

a meeting of two air masses with major differences in temperature and moisture.

This situation can create unstable atmospheric conditions conducive to severe thunderstorms, including strong winds, heavy rain, and hail.