The Movement of Waves
Ocean Organisms
The Height of the Sea
In the Ocean
Resources
100
The movement of water up to the surface.
What is upwelling?
100
The ocean organism produces about half of the world's oxygen.
What is phytoplankton?
100
A tide of small range during the first and third quarter moons.
What is neap tide?
100
A measure of matter packed into a given volume.
What is density?
100
Lumps of minerals scattered across the deep ocean floor.
What is nodules?
200
The movement of water from the surface to greater depths.
What is downwelling?
200
Catching fish at a faster rate than they can reproduce.
What is overfishing?
200
A tide of large range occurring during the full and new moons.
What is spring tide?
200
A measure of the amount of dissolved salt packed into a given volume.
What is salinity?
200
Most Middle Eastern countries drink fresh water that has gone through this process.
What is desalination?
300
The pull of water as it runs back to sea.
What is undertow?
300
The portion of animals that are caught in a net and then thrown away.
What is by-catch?
300
The low point of a wave.
What is the trough?
300
This sea is so salty and dense that people can float easily on the surface.
What is the Dead Sea?
300
A machine that pumps oil and natural gas from the ocean floor of continental shelves.
What is oil drill?
400
The horizontal movement of air caused by air pressure, wind, earthquakes, landslides, and underwater volcanic eruptions.
What is wind?
400
Areas where no plants or animals can live.
What is dead zones?
400
The difference in height between a high tide and the next low tide.
What is tidal range?
400
The ocean habitat that is exposed to air during low tide and submerged in water during high tide.
What is the intertidal zone?
400
The farming of freshwater and ocean organisms with methods that harm the environment.
What is aquaculture?
500
An opening in the sea floor from which heated water rises and mixes with the ocean water above.
What is a hydrothermal vent?
500
Trash or chemicals that harms life.
What is pollutants?
500
The layer of the ocean below the surface layer and above the deep layer.
What is the thermocline?
500
Flat or gently sloping land that lies underwater between the shoreline and the continental slope.
What is continental shelf?
500
A type of seaweed that can attach itself to the ocean floor.
What is kelp?
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