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Under the Sea
Under the Sea 2
Currents
Waves and Tides
Water
100
An underwater canyon.
What is a trench?
100
An underwater mountain.
What is a seamount?
100
The definition of ocean currents.
What is a river of water flowing through water?
100
The cause of waves.
What is wind?
100
The largest ocean basin.
What is the Pacific Ocean?
200
A flat-topped seamount.
What is a guyot?
200
The area of the ocean floor that gently slants down.
What is the continental shelf?
200
A type of ocean current that is circular and caused by wind.
What is a gyre?
200
The definition of tides.
What is the regular change in the level of the ocean at the coast?
200
Ocean water is made of these 3 things.
What is water, salt, and dissolved gases?
300
A flat area on the deep ocean floor.
What is an abyssal plain?
300
The area that sharply leads down to the deep ocean floor.
What is the continental slope?
300
What happens when salty water meets fresh water.
What is salty water sinks and fresh water rises?
300
Strong winds have this effect on waves.
What is make them bigger?
300
List the places where water is distributed on Earth from SMALLEST amount of water to LARGEST. (Hint: there are 5!)
What are water vapor (or atmosphere), rivers and lakes, groundwater, glaciers and ice sheets, and the ocean?
400
An area where water seeps into cracks in the Earth's surface, is heated by hot rocks, and spews out.
What is a hot water vent?
400
The area at the coast that is covered in water at high tide and uncovered at low tide.
What is the intertidal zone.
400
The 3 causes of ocean currents.
What is wind, when 2 bodies of water with different temperatures meet, and when 2 bodies of water with different salinities meet?
400
The cause of tides.
What is the gravitational pull of the moon (and, to a smaller extent, the Sun)?
400
The reason it is important to conserve water.
What is because only 3% of the Earth's water is fresh, and out of that water, only 1% is available to us.
500
A trench is formed when tectonic plates do this.
What is move toward each other (also known as a convergent boundary)?
500
A chain of undersea mountains where two tectonic plates are moving apart.
What is a mid-ocean ridge?
500
The reason cold water sinks when it meets hot water.
What is cold water is denser?
500
The way the Sun, moon, and Earth look in space during the strongest tides (highest high tide and lowest low tide).
When the Sun, moon, and Earth are lined up. The moon is either in the new or full phase.
500
Name 2 ways you can conserve water.
Answers may vary. Two examples: take shorter showers, turn the faucet off when you brush your teeth.