Ocean surface currents
stream-like movements of water that occur at or near the surface of the ocean
surface currents
the east Australian current (EAC) travels...
on the east side of Australia.
If Earth's surface were covered only with water, currents would travel in a ________
fixed pattern across the earth
_________ are stream-like movements of ocean water far below the ocean surface.
Deep currents
A crest is the ________
highest point
which is one of the longest surface currents, transports 25 times more water than all of the rivers in the world and flows from Florida to Iceland!
the gulf stream
__________ is 100km wide 1.5 km deep and travels up to 7km/h
The East Australian Current
When currents meet land forms, they change direction. This is known as _______________
continental deflection
Deep currents are not controlled by _____
wind or the Coriolis effect
The trough is the ________
lowest point.
______ flow like rivers in distinct patterns around the Earth.
surface currents
the EAC is not just a ______ like in the movie.
warp tube
they carry warm water to other part of the ocean starting near the _______
equator
Deep currents are mainly controlled by ______
increases in water density
Waves are made of two main components - _______
crests and troughs
the rotation of the Earth causes surface currents to move in curved paths rather than straight lines.
Coriolis Effect
In the movie finding Nemo, Nemo's home is in the ______
great barrier reef
Surface currents greatly affect the ______ in many parts of the world
climate
____________ affect the density of ocean water
Temperature and salinity
Waves move in a _______
circular pattern
global winds, Coriolis effect, continental drifts, and water temperature _______
Control surface currents
The East Australian Current transports a staggering 40 million cubic metres of water ______ each second
southward
Warm-water currents create _______ in coastal areas that would otherwise be much cooler like iceland.
warmer climates
Ocean water gets denser when it becomes
_______
saltier or gets colder.
_________ form because of friction between the wind and the surface of the water
ocean waves