Importance of Oceans
Ocean Zones
Tides
Waves
Currents
100
What percentage of the Earth's surface is covered by oceans
72%
100
What is the zone where photosynthesis can occur? (Where the sunlight reaches)
The Photic Zone
100
What causes tides?
The Moon and Sun's gravitational pulls on the Oceans
100
What causes waves?
What is wind?
100
Which type of current is primarily driven by the global winds?
Deep Ocean Currents
200
True or False: Water changes temperature more slowly than air
True
200
What is the zone where Photosynthesis cannot occur? (where the sunlight does not reach)
The Aphotic Zone
200
_________ __________ is the difference between high and low tides
Tidal Range
200
A rubber duck on top of an ocean wave would move _______________ as the wave passes
Up and down
200
Large rotating ocean currents that spin clockwise in the Northern hemisphere are called
Gyres
300
If freshwater is added to a region of seawater, what happens to the salinity AND the density of the seawater?
Salinity decreases
Density decreases
300
Which ocean zone is located closest to land?
The intertidal zone
300
How many high tides occur at a given location each day?
2
300
A wave breaks when it is too _________ to be supported by its base.
Tall
300
What is the process that brings cold nutrient rich water to the surface of the ocean?
What is upwelling?
400
What is the average percent of salt in seawater?
3.5%
400
The Neritic Zone lies above the _______________ __________
Continental Shelf
400
____________ tides occur during New Moon and Full Moon
Spring Tides
400
Ocean waves are the transfer of ___________ through water across the ocean.
Energy
400
What is the name for the ocean current that brings warm water from the Gulf of Mexico up to Northwestern Europe?
The Gulf Stream
500
How are Oceans important to climate?
They distribute heat all around the planet, they lessen the temperature range of nearby lands, and they moderate climate within a region.
500
What is the name for the zone that includes all of the seafloor
The Benthic Zone
500
Neap Tides occur when the Sun and Moon's gravitational pulls form a triangle with the Earth. This happens during which Moon phases?
First Quarter and Third Quarter
500
What is the horizontal distance between two crests of a wave?
Wavelength
500
Thermohaline circulation is the result of density differences in water masses because of their different ____________ and _____________
Temperature & Density