Ocean Currents

What are the two categories of ocean currents?  Select all correct answers.

• • Mid ocean currents

• • Deep currents

• • Beach currents

• • Surface currents

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS2-6

How much of the ocean is involved in surface currents?

• 10%

• 5%

• 90%

• 20%

Tags

NGSS.MS-ESS2-6

What is the major force that influences surface currents out in the ocean, way off shore?

• winds

• tides

Tags

NGSS.MS-ESS2-6

What are the loops created by surface currents called?

• • Hurricanes

• • Whirlpools

• • Gyres

• • Bob

Winds in the northern and southern hemispheres travel in  ____________ directions.

• the same

• counterclockwise

• opposite

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

The rotation of the Earth causes currents to move in loops and this is called:

• 
  

• • Butterfly Effect

• Coriolis Effect

Tags

NGSS.MS-ESS2-6

Deep ocean currents are driven by:

• • Changes in density

• • Earth's  magnetic field

• • Uber or Lyft

• • Winds and tides

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS2-6

Which type of water below would be the MOST dense?

• 
  

• • 40 degree water with 30% salinity

• • 10 degree water with 35% salinity

• • 40 Degree water with 0% salinity

• • 10 degree water with 10% salinity

How does Thermohaline circulation impact the marine food web?

• 
  

• • Sinking water carries nutrients deeper.

• • Rising warm water carries nutrients upwards.

• • Rising warm water leaves nutrients behind.

Tags

NGSS.MS-ESS2-4

NGSS.MS-LS2-3

What is happening to the Global Conveyor Belt as average ocean temperatures rise?

• 
  

• It is slowing down.

• • It is speeding up.

Tags

NGSS.MS-ESS2-6