Ocean Currents
Wind and earth's rotation are responsible for...
Surface currents.
The regular changes in the water level of the ocean.
What are tides?
The driving force of currents in the ocean and atmosphere.
What is unequal heating of the Earth's surface?
Streams of water that move like rivers through the ocean.
What are currents?
Long narrow depressions on the seafloor.
Trench
Surface ocean currents are driven mostly by _______.
Wind.
Tides happen twice a day on the earth because of this.
What is earth's rotation?
What is Salinity?
Amount of salt in water.
This is used to map the seafloor.
Sonar
Undersea mountains formed by volcanic activity.
Sea mounts
Temperature and salinity are responsible for __________ currents.
Deep ocean currents.
Underwater mountain range.
Mid-oceanic ridge
Ocean currents are transported back and forth between the _____ & ______.
Sea mount that breaks the surface.
Volcanic Island
Streams of water that move through the ocean like rivers.
What are currents?
True or False: Cold water is more dense.
True
Underwater plain between Continental rise and ridge, covers more than 50% of Earth's surface.
Abyssal Plain
Edge of the continent that lies under the ocean.
Continental Shelf
Circulating air is deflected towards the right in the Northern Hemisphere and left in theSouthern Hemisphere because of
The Earth's rotation.
True or False: Water with higher salinity is more dense.
True.
Seafloor features: Final boundary between the continental and oceanic crust.
Continental Rise
Warm water rises and cold water sinks causing _________.
Convection currents.
The break that descends to the sea floor.
Continental Slope