Ocean Currents Study Guide

Which best describes what happens in a convection current?

• warm air/liquid sinks, & cold air rises

• cold & warm air/liquid sinks

• warm air/liquid rises & cold air /liquid sinks

• cold & warm air /liquid rises

Tags

NGSS.MS-ESS2-6

In what direction will air currents most likely move

• From the land towards the sea

• straight down over land

• straight up above the sea

• from the sea toward the land

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

Imagine area A, which has high pressure, is next to area B , which has low pressure. Which is most likely to occur?

• The wind will blow towards area A

• The wind will blow towards area B

• The wind will stop blowing

• The wind will blow from both area A and B

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

Which diagram best models the movement of coastal air during the afternoon?

• A

• B

• C

• D

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

Upward and downward currents of air which result fro the uneven heating of the air are called

• Convection currents

• Radiation currents

• Winds

• Conduction currents

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

Land breezes occur during the_____ and produce wind moving _______

• night/in over the land

• day/out over the water

• day/in over the land

• night/out over the water

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

What is the driving force for surface ocean currents?

• global winds

• density layering

• moons gravity

• salt concentration

Tags

NGSS.MS-ESS2-6

Why does warm air rise and cold air sink?

• because warm air is denser than cold air

• because warn air is less dense than cold air

• because cold air is less dense than warm air

• because warm has less pressure than cold air does

Tags

NGSS.MS-ESS2-6

NGSS.MS-PS1-4

What are the major controlling factors for deep ocean currents?

• salinity and temperature

• wind and pressure

• continental deflection

Tags

NGSS.MS-ESS2-6

Which two statements that explains why cold water currents are most likely be located deeper than warm water currents?

• winds push cold water down

• cold water is less dense due to higher salinity

• ocean tides force cold water downward

• cold water is more dense due to higher salinity

• cold water is more dense and sink

Tags

NGSS.MS-ESS2-6