Weather and Atmosphere

Which graphic best represents the density of air molecules throughout the atmosphere?

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• 
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Below is a simplified weather map of the continental United States.

• As a cold front moves, the colder, more dense air moves below the warmer air, and this causes storms.

• As a cold front moves, the colder, more dense air moves above the warmer air, and this causes storms.

• As a cold front moves, the colder, less dense air moves below the warmer air, and this causes storms.

• As a cold front moves, the colder, less dense air moves above the warmer air, and this causes storms.

Layer of the atmosphere that is the coldest:

• troposphere
• stratosphere
• mesosphere
• thermosphere

What is the order of the layers of the atmosphere, starting with the layer closest to Earth's surface?

• Stratosphere, Troposphere, Exosphere, Mesosphere, Thermosphere

• Troposphere, Stratosphere, Mesosphere, Thermosphere, Exosphere

• Troposphere, Stratosphere, Mesosphere, Exosphere, Thermosphere

• Troposphere, Stratosphere, Thermosphere, Exosphere, Mesosphere

A cold front pushes a warm front up and out of the way and then meets another cold front.

• Cold Front

• Warm Front

• Stationary Front

• Occluded Front

Tags

NGSS.MS-ESS2-5

Which choice best explains why a low-pressure system and a high-pressure system create different weather conditions?

• In a low-pressure system, air sinks, creating fair weather. In a high-pressure system, air rises, creating storms.

• In a low-pressure system, air rises, creating storms. In a high-pressure system, air sinks, creating fair weather.

• In a low-pressure system, air rises, creating fair weather. In a high-pressure system, air sinks, creating storms.

• In a low-pressure system, air sinks, creating storms. In a high-pressure system, air rises, creating fair weather.

A colder air mass moves toward a warmer air mass. 

• cold
• warm
• stationary
• occluded

Tags

NGSS.MS-ESS2-5

These conditions occur over the course of a day.

-Cumulus clouds appear and create rain showers.

-The sky clears soon after the showers.

-The temperature drops after the sky clears.

Which weather event is most likely moving through the area?

• tornado

• hurricane

• cold front

• warm front

On a warm day in late October, the air temperature drops 20 degrees and a rare fall thunderstorm takes place. Which event is most likely happening with the changes in weather?

• An occluded front is present

• A stationary front is present.

• A cold front is moving through.

• A warm front is moving through.

What causes wind?

• differences in pressure
• conduction currents
• density
• tropical currents

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6