Use the table to answer the question.

Day Observations
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 air mass replaced a cold air mass.
A warm air mass replaced a cold air mass.

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

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

A cold front moved into the area.

ALL THE ANSWERS ARE CORRECT

A cold front moved into the area.

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

There is no chance of precipitation in the forecast.
There is no chance of precipitation in the forecast.

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.

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

movement of large air masses
movement of large air masses

different types of cloud formations
different types of cloud formations

density of air

movement of large air masses

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

“A Cold Air Mass Exits the Region”
“A Cold Air Mass Exits the Region”

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

“A Warm Air Mass Forms over the Region”

“A Strong Cold Front Threatens the Region”

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