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Oceanography 24 & 25
Ocean Zones
Tides Ocean Water
Elements Grab bag
100 100 100 100 100
200 200 200 200 200
300 300 300 300 300
400 400 400 400 400
500 500 500 500 500
The bottom region of the ocean
Answer
Benthic Zone
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The movement of deep, cold, and nutrient-rich water to the surface
Answer
Upwelling
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The region of an ocean or body of fresh water above the benthic zone.
Answer
Pelagic Zone
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What are the two main solids dissolved in ocean
water?
Answer
Sodium and Chlorine
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What are the 3 main temperature zones in the
ocean?
Answer
1. Surface water- solar energy
2. Thermocline- where Sun stops heating
3. Deep Water- cold water becomes dense & sinks
Home
The water in the ocean moves in giant streams called ____
Answer
Home
Currents
The shallow sea floor that is located between the
shoreline and the deep-ocean bottom
Answer
Continental Margin
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What is SONAR?
Answer
Sound Navigation and Ranging- uses sound
waves to find depths of the ocean floor
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What 2 factors affect the density of ocean water?
Answer
Temperature and Salinity
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What ocean floor feature is created at a subduction zone?
Answer
Trench
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A measure of the amount of dissolved
salts in a given liquid
Answer
Salinity
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The ratio of the mass of a substance to the
volume of the substance
Answer
Density
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The curving of the paths of ocean currents and winds due to Earth’s rotation is called the
_________Answer
Coriolis Effect
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A layer in a body of water in which water
temperature drops with increased depth faster than
it does in other layers
Answer
Thermocline
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What are microscopic organisms that live in the sunlit zone, creating the base of the food chain?
Answer
Plankton
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Answer
The force that causes tides is _____________
Gravity
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Waves strike the coastline head-on instead of at an
angle as a result of ________
Answer
Refraction
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Gases dissolve most readily in what kind
of water?
Answer
Cold ocean water
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Trace elements in the ocean are those
minerals that are __________ in amount
Answer
Smallest
Home
Answer
The 2 main gases dissolved in ocean water are ___________ and
________________
Nitrogen and oxygen
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The distance the wind blows across an area of the sea to generate waves is known as
_________
Answer
Fetch
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2 identical points on consecutive waves pass a
given point in one __________
Answer
Wave Period
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What ocean floor feature is created when two oceanic
plates diverge?
Answer
Mid-ocean Ridge
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What is the research vessel that laid the foundation for modern day oceanography?
Answer
HMS Challenger
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Deep currents are caused by differences in _____________
Answer
Density of ocean water
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