3.4 Weather, Wind, Pressure Systems

The Coriolis effect causes wind to deflect and rotate due to the fact that the Earth is rotating while the air is moving.

What is TRUE of the Coriolis Effect?

• Prevailing Wind bends clockwise in the Northern Hemisphere.

• Prevailing Wind bends counterclockwise in the Northern Hemisphere.

• Westerlies come from the East and blow to the West.

Tags

NGSS.MS-ESS2-6

What are the Trade Winds?

• Prevailing winds that blow East to West near the equator.

• Prevailing winds that blow West to East near the subtropics.

• Prevailing winds that blow West to East near the poles.

Tags

NGSS.MS-ESS2-6

Why do they blow from East to West?

• Due to Earth's rotation.

• Due to changes in temperature.

• Due to changes in ocean salinity.

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

Which prevailing winds are caused by the Ferrel cells?

• Westerlies

• Trade Winds

• Polar Easterlies

Tags

NGSS.MS-ESS2-6

What is the name given to the low pressure area created at the equator?

• ITCZ (Inter Tropic Convergence Zone)

• Subtropic High

• Polar Front

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

What is the name given to the high pressure area created around 30-40 degrees north and south of the equator?

• ITCZ (Inter Tropic Convergence Zone)

• Subtropic High

• Polar Front

Tags

NGSS.MS-ESS2-6

What are the 3 things that gas molecules do when warmed by the sun?

***SELECT 3

• Move faster (increased kinetic energy)

• They spread out (decrease density)

• They rise up (cooler air pushes them up)

• The contract (increase density)

• They sink to the Earth (become more dense)

Tags

NGSS.MS-PS1-4

What creates an area of low pressure?

• Rising air

• Sinking air

Tags

NGSS.MS-ESS2-5

What creates an area of high pressure?

• Sinking air

• Rising air

Tags

NGSS.MS-ESS2-5

Why does the wind blow?

• Differences in air pressure

• Differences in oxygen content

• Differences in gravity

• Differences in the thermosphere

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6