A system that uses reflected sound waves to locate and determine the distance to objects under water.
What is sonar?
100
The movement of water and sediment down a beach caused by waves coming in to shore at an angle.
What is longshore drift?
100
The average annual conditions of temperature, precipitation, winds, and clouds in the area.
What is climate?
100
An area between the highest high-tide line on land and the point on the continental shelf exposed by the lowest low-tide line.
What is the intertidal zone?
100
An undersea mountain chain where new ocean floor is produced; a divergent plate boundary under the ocean.
What is mid-ocean ridge?
200
The total amount of dissolved salts in a water sample.
What is salinity?
200
A wall made of rocks or concrete that is built outward from a beach to reduce erosion.
What is a groin?
200
A large stream of moving water that flows through the oceans.
What is a current?
200
The pattern of overlapping feeding relationships or food chains among the various organisms in an ecosystem.
What is the food web?
200
This is the reason that ocean water is more dense than fresh water.
What is higher salinity?
300
A steep incline of the ocean floor leading down from the edge of the continental shelf.
What is continental slope?
300
A strong narrow current that flows briefly from the shore back toward a narrow opening.
What is rip current?
300
The effect of the Earth's rotation on the direction of winds and currents.
What is the Coriolis effect?
300
The deepest, darkest area of the ocean beyond the edge of the continental shelf.
What is open-ocean zone?
300
The two factors influence the size of a wave.
What is time and distance?
400
A smooth, nearly flat region of the deep ocean floor.
What is abyssal plain?
400
The disturbance that transfers energy from place to place.
What is a wave?
400
An abnormal climate event that occurs every two to seven years in the Pacific Ocean, causing changes in winds, currents, and weather patterns for one to two years.
What is El Nino?
400
Free-swimming animals that can move throughout the water column.
What is nekton?
400
The type of organism is found in all three zones?
What is nekton?
500
A gently sloping, shallow area of the ocean floor that extends outward from the edge of a continent.
What is continental shelf?
500
The number of complete waves that pass a given point in a certain amount of time.
What is frequency?
500
A climate event in the eastern Pacific Ocean in which surface waters are colder than normal.
What is La Nina?
500
The area of the ocean that extends from the low-tide line out to the edge of the continental shelf.
What is neritic zone?
500
A giant wave usually caused by an earthquake beneath the ocean floor.
What is tsunami?
Bonus 100 points for the other name for a tsunami! :)