Why Air Moves - Part 1: Pressure Belts

What happens to warm air compared to cool air?

• Warm air is denser and sinks.

• Warm air is less dense and rises.

• Warm air is denser and rises.

• Warm air is less dense and sinks.

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

What creates convection currents?

• The movement of cold air only.

• The movement of warm air only.

• The rising of warm air and sinking of cool air.

• The sinking of warm air and rising of cool air.

Tags

NGSS.MS-ESS2-6

What is wind caused by?

• Differences in temperature.

• Differences in air pressure.

• Differences in humidity.

• Differences in altitude.

Tags

NGSS.MS-ESS2-5

How does air move in relation to pressure?

• From low pressure to high pressure.

• From high pressure to low pressure.

• From warm areas to cold areas.

• From cold areas to warm areas.

Tags

NGSS.MS-ESS2-5

What happens to air at the poles?

• It rises and creates low pressure.

• It sinks and creates high pressure.

• It rises and creates high pressure.

• It sinks and creates low pressure.

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

What is the effect of Earth's tilt on air around the equator?

• The air is consistently cooled.

• The air is consistently warmed.

• The air is consistently humid.

• The air is consistently dry.

Tags

NGSS.MS-ESS2-6

What happens to air as it moves away from the poles?

• It cools and pressure increases.

• It warms and pressure drops.

• It cools and pressure drops.

• It warms and pressure increases.

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

What are convection cells?

• Linear patterns of wind.

• Circular patterns of wind.

• Random patterns of wind.

• Vertical patterns of wind.

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

What is the relationship between air pressure and wind speed?

• Greater differences in air pressure slow down the wind.

• Greater differences in air pressure speed up the wind.

• Greater differences in air pressure have no effect on wind speed.

• Greater differences in air pressure reverse the wind direction.

Tags

NGSS.MS-ESS2-6

What is the main cause of pressure differences in the atmosphere?

• Uneven heating of Earth the Earth's surface by the Sun.

• Unequal distribution of water.

• Unequal distribution of land.

• Unequal distribution of vegetation.

Tags

NGSS.MS-ESS2-6