Slides 1 and 2
Streamlike movements of water that occur at or near the surface of the ocean are called _______.
Surface currents
The ________________ does flow along the East coast of Australia,
East Australian Current
If Earth's surface were covered only with water, currents would travel in a _____ _____ across the Earth.
fixed pattern
_______ are stream-like movements of ocean water far below the ocean surface
Deep currents
Waves are made of two main components -____ ___ ____.
crests and troughs
Surface currents flow like rivers in _______patterns around the Earth.
Distinct
it does flow southward from the ____________
Great Barrier Reef
Warm water currents begin ____ the equator and carry warm water to other parts of the ocean.
near
Deep currents are mainly controlled by_______ __ _______ ____
increases in water density
A crest is the ______ point and the trough is the ______ point
highest and lowest
Surface currents are controlled by four factors:
global winds, the Coriolis effect, continental deflection, and the water temperature.
Speeds in the core of the ___ are
among the strongest in the South Pacific
EAC
Cold water currents begin closer to the ____ and carry cool water to other parts of the ocean.
poles
Temperature and salinity affect the _____ of ocean water.
density
A wavelength is the ________ between two adjust crests or troughs.
distance
The Gulf Stream, which is one of the
longest surface currents, transports ____ times more water than all of the rivers in the world
25
strongest in the South Pacific, up to ___ mph an hour.
4.5
Surface currents ____ affect the climate in many parts of the world.
greatly
Cold air chills the water molecules at the surface, causing them to move _____ together.
closer
Ocean waves form because of ____ between the wind and the surface of the water.
friction
Surface currents can reach depths of several hundred meters and lengths of _______________________.
several thousand kilometers
The East Australian Current transports a staggering 40 million cubic metres of water southward each ____.
second.
Warm-water currents create warmer _____ in coastal areas that would otherwise be much cooler
climates
the _____ of the water decreases, and the water becomes denser.
volume
_______ _________ are waves that require a medium.
Mechanical waves