If you blow up a balloon and pinch the neck shut, what will happen if you release the neck? Explain this in terms of air pressure.

When the balloon neck is let go, the high-pressure air inside the balloon will exit quickly in the low-pressure air room.

When the balloon neck is let go, the low-pressure air inside the balloon will exit quickly into the high-pressure air room.

What is the difference between humidity and relative humidity?

Humidity is the amount of water vapor in the air. Relative humidity is the amount of water vapor in the air compared with the amount that the air can hold.

There isn't a difference. They are both the same.

Humidity is just a general term of relative humidity.

Relative humidity is the amount of water vapor in the air. Humidity is the amount of water vapor in the air compared with the amount that the air can hold.

Explain how a barometer can be used to measure both air pressure and elevation.

A barometer measures atmospheric pressure. Air pressure drops steadily with elevation, so elevation can be measured with a barometer.

A barometer measures elevation pressure. Air pressure drops steadily with elevation, so elevation can be measured with a barometer.

They both can't be measure with a barometer.

I don't know why. It just works.

How do cold fronts create rainstorms?

Cold fronts lift warm air beneath cold air. When warm air is moist and the cold front is moving fast, it creates cumulonimbus clouds, and they make rainstorms.

Cold fronts lift cold air beneath warm air. When warm air is moist and the cold front is moving fast, it creates cumulonimbus clouds, and they make rainstorms.

Cold fronts lift warm air beneath cold air. When warm air is moist and the cold front is moving fast, it creates stratus clouds, and they make rainstorms.

Cold fronts lift cold air beneath warm air. When warm air is moist and the cold front is moving fast, it creates stratus clouds, and they make rainstorms.

What is cloud seeding, and why does it work?

Cloud seeding is bringing precipitation particles into clouds. Water vapor has to form around the particles.

Cloud seeding is bringing sleet particles into clouds. Water vapor has to form around the particles.

Cloud seeding is bringing tornado particles into clouds. Water vapor has to form around the particles.

Cloud seeding is bringing hurricane particles into clouds. Water vapor has to form around the particles.

What are the three stages of a thunderstorm? Choose three

During the cumulus stage, warm air forms cumulus clouds, what makes a thunderhead.

The thunderstorm dies out with the loss of water vapor.

When it mature, the cumulus cloud grows and spreads out into an anvil shape, forming cumulonimbus clouds. Falling rain and ice crystals cool the air and cold downdrifts are created.

The thunderstorm dies out with the loss of wind.

What are the signs that a thunderstorm is forming a tornado?

The flat part of the cloud's anvil starts to bulge, or low-hanging clouds begin to rotate.

The bottom part of the anvil starts to bulge, or high-hanging clouds begin to rotate.

Which best defines a low pressure area?

Warm, less dense air over an area.

Cold, less dense air over an area.

A front is ______________________.

the boundary between two air masses.

Sea breezes are __________________________.

cool ocean air replacing warm air rising from the land during the day.

warm ocean air replacing cool air rising from the land during the night.

warm ocean air replacing cool air rising from the land during the day.

cool ocean air replacing warm air rising form the ocean during the night.

Lightning is formed ___________________.

when positive and negative charges build up inside a thunder cloud.

when two thunderclouds crash into each other, creating an electrical current.

when air molecules crowd up against water molecules inside a thunder cloud, creating an electrical current.

when a thundercloud crashes into a warm air mass, creating an electrical current.

Which best defines a high-pressure area?

Warm, less dense air over an area.

Cold, less dense air over an area.

Land breezes are _______________________.

cool land air replacing warm air rising from the ocean during the night.

cool land air replacing warm air rising from the ocean during the day.

cool ocean air replacing warm air rising from the land during the day.

cool ocean air replacing warm air rising from the land during the night.

Thunder is created _____________________.

when air rapidly expands as it is heated by lightning.

when two thunderclouds crash into each other, creating a loud boom.

when lightning produces friction against a thundercloud.

when a thundercloud crashes into a warm air mass, creating a loud boom.

God organized the atmosphere in such a way that regions have relatively predictable weather. Why is this a blessing? choose all that apply

Certain regions don't have to plan for snow or ice.

Weather

Authored by Laura Streeter

Science

6th - 8th Grade

NGSS covered

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The amount of heat that a region receives from the sun depends on how fast the Earth rotates each day.

True

False

Tags

NGSS.MS-ESS2-6

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Cirrus clouds are created from ice crystals.

True

False

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Normal atmospheric pressure is the air pressure at sea level.

True

False

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The speed with which a cold front moves helps determine how much precipitation will occur.

True

False

Tags

NGSS.MS-ESS2-5

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The westerlies blow air from the east to the west.

True

False

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Cold air can hold more moisture than warm air can.

True

False

Tags

NGSS.MS-ESS2-5

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A large, rotating tropical weather system with speeds of at least 119 km/h (74 mph).

Tornado

Hurricane

Jet Stream

Trade winds

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

NGSS.MS-ESS3-2

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Weather

The amount of heat that a region receives from the sun depends on how fast the Earth rotates each day.

Cirrus clouds are created from ice crystals.

Normal atmospheric pressure is the air pressure at sea level.

The speed with which a cold front moves helps determine how much precipitation will occur.

The westerlies blow air from the east to the west.

Cold air can hold more moisture than warm air can.

A large, rotating tropical weather system with speeds of at least 119 km/h (74 mph).

Puffy, white low-level clouds.

A small, rotating funnel of air that has high wind speeds and low central air pressure.

The winds that blow from 30 degrees latitude to the equator.

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