Tides
Tides are primarily caused by what?
Gravitational pull from the moon
What causes surface currents to move?
wind
What causes deep currents?
Differences in density due to changes in temperature and salinity
What type of boundary causes a mid-ocean ridge to form?
divergent boundary
What causes waves in the ocean?
wind
What is tidal range?
The difference between high and low tide
Which surface current brings warm moist air to the Eastern coast of the United States and then to Europe?
Gulf Stream
nDeep ocean currents travel in a HORIZONTAL or VERTICAL PATTERN?
vertical
What process occurs at an ocean trench?
subduction
Waves transfer _________ through water?
energy
A Spring Tide happens during what moon phase?
Full or new moon?
Surface currents flow in a HORIZONTAL or VERTICAL pattern?
horizontal
In our demonstration what type of water was the most dense?
salt water
What type of boundary causes an ocean trench?
convergent boundary
What causes a tsunami?
earthquakes
Neap Tides happen during what moon phase?
1st or 3rd quarter
The Coriolis Effect is caused by…
rotation of earth on its axis
The slow movement of warm and cold water throughout the world’s oceans is known as the ________________________.
Global Conveyor Belt
What process occurs at a mid-ocean ridge?
sea-floor spreading
What increases as I go deeper into the ocean?
pressure
Why does a spring tide have higher high tides and lower low tides?
During spring tides the moon and sun are aligned and have a greater pull on the oceans
Gyres in the Northern hemisphere move in a __________ direction, and gyres in the Southern hemisphere move in a _________ direction.
clockwise (right), counterclockwise (left)
How long does it take one water molecule to make it through the Global Conveyer Belt?
1,000 years
Where is the youngest rock located?
near the mid-ocean ridge
What decreases as I move deeper in the ocean?
temperature