Ocean Currents

______ causes deep ocean currents

• The Coriolis Effect

• gravity

• wind

• density differences

Tags

NGSS.MS-ESS2-6

______ causes surface currents.

• The Coriolis Effect

• gravity

• density differences

• wind

Tags

NGSS.MS-ESS2-6

What are two things that drive the global conveyor belt?

• salinity and temperature
• temperature and tides
• the moon and salinity
• temperature and the moon

Tags

NGSS.MS-ESS2-6

At the poles, the oceans get colder.  Freshwater is removed from the ocean as icebergs form.  This leaves behind the salt.   This process _______ the density of the ocean water.  

• increases

• decreases

Why are ocean currents important to global climate?

• ocean currents circulate warm water from the poles to the equators

• ocean currents circulate warm water from equators to the poles

• ocean currents cause the prevailing winds

• ocean currents make water warmer at the equator

Tags

NGSS.MS-ESS2-6

Which of the following best explains convection?

• cold, dense water rises, hot, more dense water sinks

• cold, less dense water rises, hot dense water sinks

• cold, less dense water sinks, hot dense water rises

• cold, dense water sinks, hot, less dense water rises.

Tags

NGSS.MS-ESS2-6

NGSS.MS-PS1-4

_______ causes the Coriolis Effect

• Earth's rotation

• gravity

• wind

• density

Tags

NGSS.MS-ESS2-6

The large, circular surface-current pattern found in each ocean.

• California Current
• Surface Current
• Gyre
• Global Conveyor Belt

Tags

NGSS.MS-ESS2-6

What happens to a current when it comes in contact with a continent or landmass?

• It continues over the continent
• It stops
• It changes direction
• It is absorbed by the land

Where does the initial source of energy come from that creates winds?

• the moon
• the sun
• the Earth's surface
• the rotation of the Earth

Tags

NGSS.MS-ESS2-6