How Do Ocean Currents Work?

Which of the following does NOT affect the ocean currents?

• • Mid-Atlantic Ridge

• • Wind

• • Tides

• • Changes in Water

• • Rotation of the Earth

Tags

NGSS.MS-ESS2-6

The topography  (highs and lows) of ocean floor and the shore line changes the ocean currents to

(you may chose more than one)

• • speed up

• • slow down

• • changes the direction of ocean waters

Tags

NGSS.MS-ESS2-6

the 2 types of ocean currents are:

• • surface currents

• • midway currents

• • Coriolis currents

• • deep ocean currents

Tags

NGSS.MS-ESS2-6

• Which is NOT controlling surface currents near the shore?

• • tides

• • winds

• • rotation of Earth

Tags

NGSS.MS-ESS2-6

wind pushes on the top layer of water in the open ocean and than in turn

• • pushes on the layers below it, which pushes on the next lower layer, and so on

• • down to 400 feet

  
  

Tags

NGSS.MS-ESS2-6

• the northern hemisphere GYRES rotate

• • 
    

    Counterclockwise/left

• • 
    

  • Clockwise/right

Tags

NGSS.MS-ESS2-6

Why do Gyres spin clockwise in the northern hemisphere and counter clockwise in the southern hemisphere?

• • The Earth's rotation affects the wind patterns

• • The Ocean Currents are driven by large swimming animals such as Whales.

• • The Earth's orbit around the sun moves the ocean currents

Tags

NGSS.MS-ESS2-6

Deep ocean currents are controlled by

• wind

• rotation of Earth

• changes in density of seawater

Tags

NGSS.MS-ESS2-6

What forms the winding loop called the Global Conveyer belt? Select all that apply

• • Thermohaline circulation of deep water

• Sea Turtles swimming in the ocean

• Hurricanes

• • Wind-driven surface currents

Tags

NGSS.MS-ESS2-6

as water moves up from the bottom, it brings up ______ which add to the food chain

• • salt

• rocks

• • nutrients

• fishes

Tags

NGSS.MS-ESS2-4

NGSS.MS-LS2-3

NGSS.MS-LS2-4