Deep Ocean Currents

Why is upwelling (deep water moving to the surface) important?

• Upwelling makes the ocean more salty.

• Upwelling provides nutrient rich water that sustains life

• Upwelling controls the tides

• Upwelling helps sailors to navigate the seas

Tags

NGSS.MS-ESS2-6

NGSS.MS-LS2-3

Two types of ocean currents are

• local and global
• sea and land
• surface and deep
• warm and cold

Tags

NGSS.MS-ESS2-6

Salinity is

• The salt content of a substance

• The Pepper content of a substance

• The circulation of hot and cold matter

• the weather pattern of a region

Tags

NGSS.MS-ESS2-4

Deep Ocean currents caused by

• Global Wind Patterns

• Earth's Rotation

• Differences in density

• All of the above

Tags

NGSS.MS-ESS2-6

As you go deeper in the ocean, the water is colder and less salty.

• True

• False

What do we call the constantly moving system of deep-ocean circulation driven by differences in temperature and salinity?

• California Current

• Global Conveyor Belt

• Surface Currents

• Gulf Stream

Tags

NGSS.MS-ESS2-6

Where would I find the most dense ocean water?

• At the surface

• In the middle

• At the bottom

• Lake Michigan

Near the North Pole, the water is super cold and salty, so it _______________.

• sinks

• rises

• evaporates

• condenses

Tags

NGSS.MS-ESS2-4

In both the Indian and Pacific Oceans, deep water begins to warm up and ______________, joining back in with the Gulf Stream.

• sinks

• rises

• freezes

• evaporates

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS2-6

Warm water is __________ cold water.

• more dense than

• less dense than

• the same density as

Tags

NGSS.MS-PS1-4