Earth's Circulation

These winds blow from 30 degrees latitude in both hemispheres almost to the equator. (Hint: winds are named for the direction from which they blow.)

• easterlies
• westerlies
• trade winds
• the doldrums

Tags

NGSS.MS-ESS2-6

What is the main cause of air circulation in the Earth's atmosphere?

• ocean currents
• Earth's gravity
• energy from the sun
• Earth's magnetic field

Tags

NGSS.MS-ESS2-6

How do winds behave near the equator?

• Winds are mostly weak because the equator is a region of mostly low air pressure.

• Winds are generally strong because the equator is a region of mostly high air pressure.

• Winds are mostly weak because the equator is a region where low and high air pressure bands come together

• Winds are generally strong because the equator is where low and high air pressure bands come together.

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

How is air movement usually named?

• the direction it is going
• the direction it is coming from
• where you are
• by the strength of the air movement

Which way does wind usually blow?

• from areas of low pressure to areas of high pressure
• from areas of high pressure to areas of low pressure
• up
• down

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

The Coriolis effect causes the wind in both hemispheres to _______ because of the rotation of the earth.

• stop

• start

• go straight up

• curve

Tags

NGSS.MS-ESS2-6

High pressure belts alternate with low pressure belts in the Earth's atmosphere. Where are the high pressure belts? Choose 2.

• North Pole and South Pole

• 30° N and 30° S of the equator

• 60° N and 60° S of the equator

• Everywhere

Tags

NGSS.MS-ESS2-6

As air cools, its particles move ________________, which means its density has _______________.

• closer together / decreased

• closer together / increased

• further apart / decreased

• further apart / increased

Tags

NGSS.MS-PS1-4

Cool air ____________, causing __________ air pressure.

• rises / higher

• rises / lower

• sinks / higher

• sinks / lower

Tags

NGSS.MS-ESS2-5

Cold air spreads out, causing the warm air, which has a ___________ air pressure, to _____________.

• lower / rise

• lower / sink

• higher / rise

• higher / sink

Tags

NGSS.MS-ESS2-5