Ocean floor
A smooth and nearly flat region of the ocean floor is called a(n) ________________.
What is an abyssal plain
These currents are caused by global winds, the Coriolis Effect, and continental deflections.
What are surface currents
A large stream of moving water that flows through oceans is called a _____________________.
What is a current
The ___________ ___________ meets land and is gently sloping and shallow.
What is the continental shelf
These underwater mountains are not tall enough to break the surface of the water.
What are seamounts
Waves are mostly caused by ___________, which is caused by energy from the sun.
What is wind
Approximately what percentage of the Earth's water is saltwater?
What is 97%
A(n) ______________ is an underwater mountain that is tall enough to break the ocean surface.
What is an island
A(n) _________________________ is made up of a range of mountains that wind through the ocean.
What is a mid-ocean ridge
__________ are the daily rise and fall of water levels that are caused by gravity due to the moon and sun.
What are tides
These tides occur when the the sun, moon, and the Earth are in alignment.
What are spring tides
______ is a device that determines the distance of an object under water by recording echoes of sound waves.
What is sonar
These are canyons in the ocean floor.
What are trenches
These tides occur when the sun and moon form a right angle with the Earth.
What are neap tides
is the vertical (up & down) distance from crest to trough.
wave height
What is the amount of mass of a substance in a given volume
density
The ___________ ___________ is very steep and about 430 feet out from shore.
What is the continental slope
is the movement of energy through a body of water.
What is a wave
Deep ocean currents are caused by density differences in ____________________________.
both salinity and temperature
How does the salinity of the ocean change the further down you go?
increases