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Physical Ocean

Physical Ocean Review
a data set by ewendland
created October 4, 2016
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FAMILY TREE
Play a game to test your knowledge!
What geological structures are formed when an ocean plate collides with a continental plate?A trench and a volcanic mountain range
The lower tides that result when the Moon and Sun are perpendicular to each other are called:Neap tides
What causes El Nino?Winds blow from the west (from Asia), reducing the equatorial current. This reduces upwelling and warms the water in the eastern Pacific.
Where are the warmest waters in a "normal" year compared to an "El Nino" year?Western Pacific
Which is NOT a reason ocean circulation is important?Currents transfer salt around the Earth
What geological structures are formed when an ocean plate collides with another ocean plate?A trench and a volcanic island arc
Waves break whenThe top of the wave moves faster than the bottom of the wave
Touch the letter that points to the trough of the wave.298, 218
Touch the letter that points to the crest of the wave.145, 38
As a result of coriolis effect, winds in the southern hemisphere curveTo the left
Salty water is denser than fresh waterTRUE
Areas where water evaporates at a high rate would be expected to haveHigh salinities
Warm water is more dense than cold water.FALSE
Continental crust is predominantly made up of what kind of rock?Granite
What is happening at a divergent boundary?Plates are moving apart
Touch the letter that indicates the wave height of the wave.291, 147
If I were to put cold, salty water in a jar on top of warm, fresh water, what would you expect to happen?The water in the jars would mix and change places
Surface currents are NOT a result ofEarthquakes
Areas with lots of rain or rivers entering the ocean would tend to haveLow salinities
Ocean crust is predominantly made up of what kind of rock?Basalt
What do surface currents generally mirror?Planetary wind patterns
What happens at a convergent plate boundary?Plates are coming together
What drives deep water currents?Density and temperature
Why is there no thermocline at the poles?The water is very cold from top to bottom
Which has a greater effect on the Earth’s tides?The Moon
Touch the letter that indicates the wavelength of the wave.289, 72
As a result of coriolis effect, winds in the northern hemisphere curveTo the right
A large, circular loop of water formed by 4 currents is called aGyre
What is happening at a transform boundary?Plates are sliding by each other
The surface waters of the ocean tend to have a very high densityFALSE
Which of the following is the best example of a Hot Spot away from any plate boundaries?The Hawaiian Island Chain
Tides are caused by the gravitational pull of the moon and sun, and:Centripetal force
Which types of rocks are older?Granitic rock is older than basaltic rock, because it is lighter and does not become subducted and recycled.
What structure is formed at a divergent plate boundary?A mid-ocean ridge and sea floor spreading center
What causes wave formation?Friction from wind moving across water
What happens when an ocean plate collides with a continental plate?The heavier oceanic plate subducts beneath the lighter continental plate.
A repeating movement of energy through matter or space is called aWave
The higher tides that result when the Moon and Sun are in a straight line are called:Spring tides
The area of the ocean where salinity changes rapidly is known as the:Halocline
Which of the following best describes a hotspot?A volcanic region found far from a plate boundary due to areas of activity within the mantle; typically forms island chains, with the oldest volcanoes now lying far from the activity and youngest volcanoes lying directly over the activity.
Surface currents are in the upper _____ of the ocean, while deep water currents are in the bottom _____ of the ocean10%, 90%
The area of the ocean where temperature changes rapidly is known as the:Thermocline
Which statement is true regarding El Niño and La Niña trends?Stronger El Niño episodes occur every 10-15 years
The phenomenon that causes winds to curve on the surface of the Earth due to different rotational speeds is known asCoriolis effect
The area of the ocean where density changes rapidly is known as the:Pycnocline
Ready to learn about Physical Ocean?