Oceans

Which term describe the rising of cold water from deeper layers to replace warmer surface water?

• density current

• down welling

• surface current

• upwelling

The five huge circular-moving systems of ocean surface currents are called

• density currents

• fetches

• drifts

• gyres

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS2-6

The density of ocean water is determined by 2 factors; they are

• salt and temperature

• temperature and latitude

• pH level and salt

• temperature and ocean basin

The most abundant salt in seawater is

• calcium chloride

• magnesium chloride

• potassium chloride

• sodium chloride

Which process does NOT lead to a decrease in the salinity of water?

• runoff from land

• precipitation

• sea ice melting

• evaporation

An ocean current moving from the equator toward a pole is

• cold

• warm

• cold in the Northern Hemisphere and warm in the South Hemisphere

• warm in the Northern Hemisphere and cold in the Southern Hemisphere

Tags

NGSS.MS-ESS2-6

A tsunami is an unusually large wave caused by

• an earthquake or volcano

• increased gravitational pulls when the sun and moon line up

• a heat wave

• extreme winds   

Tags

NGSS.MS-ESS3-2

The California Current (west coast) carries _________ water from canada

• Cold 

• Warm

• Freezing

• Fresh

Tags

NGSS.MS-ESS2-6

Due to the Coriolis Effect, water in the northern hemisphere moves

• clockwise

• counter clockwise

• both

• neither

Tags

NGSS.MS-ESS2-6

What is a surface current?

• The horizontal movement of air in a regular pattern at the ocean's surface.

• The vertical movement of air in a regular pattern at the ocean's surface.

• The horizontal movement of water in a regular pattern at the ocean's surface.

• The vertical movement of water in a regular pattern at the ocean's surface.

Tags

NGSS.MS-ESS2-6