Currents

1. downwelling 2. gyre 3. thermohaline circulation 4. upwelling

3 1 2 4

The Coriolis effect causes surface ocean currents to _____.

bend and curve around the planet

downwelling

downward movement of surface ocean water caused by wind

The trade winds are found near the _____.

equator

The Gulf Stream _____.

flows in a generally northeastern direction

upwelling _________.

happens when water rises to replace moving surface water

Cold water _________ than warm water.

has higher salinity

gyre

large, rotating current loops caused by the Coriolis effect

thermohaline circulation

movement of deep ocean water driven by differences in temperature, salinity, and density

In the "global conveyor belt," cold water from the North Pole _____.

passes the equator and flows toward Antarctica

Select all of the answers that apply. Thermohaline circulation is driven by differences in _____.

temperature salinity density

upwelling

upward movement of deeper, colder ocean water to the surface caused by wind

Surface currents are driven by _____.

wind