Ocean Water
Ocean Currents
Ocean Waves and Tides
Vocabulary
Grab Bag
100
Scientists believe that the oceans were formed by these.
What are volcanoes?
100
These currents move water parallel to Earth's surface.
What are surface currents?
100
This is how the water particles in ocean waves move.
What is in circles?
100
Occurs when the sun, moon, and Earth form a right angle.
What is a neap tide?
100
This is the only thing that moves forward in a wave.
What is energy?
200
These two elements make up most of the salt in seawater.
What are sodium and chloride?
200
Currents that are powered by wind.
What are surface currents?
200
The rise and fall in sea level caused by gravity.
What is a tide?
200
The highest point of a wave.
What is the crest?
200
The lowest point of a wave.
What is the trough?
300
Low areas on Earth that filled with water to form the oceans.
What are basins?
300
This is formed when more dense seawater sinks under less dense seawater.
What is a density current?
300
This increases as a wave slows and its crest and trough come closer together.
What is the wave height?
300
Motions caused by gravity.
What are tides?
300
This is the difference between the level of the ocean at high tide and low tide.
What is the tidal range?
400
Some of the substances dissolved in seawater come from these.
What are groundwater, rivers, volcanoes, and the atmosphere?
400
The Coriolis effect, wind, and the continents have an affect on these.
What are surface ocean currents?
400
The horizontal distance between the crests or troughs of two waves.
What is the wavelength?
400
The highest tides.
What are spring tides?
400
Currents on the western coasts of the continents are cold because the water come from here.
What are the poles?
500
Some marine animals use calcium or silica from the ocean water to form these.
What are bones and shells?
500
Circulation in the ocean that brings deep, cold water and nutrients to the ocean surface
What is an upwelling?
500
This happens to the height of a wave as it approaches shore.
What is it increases?
500
The strongest current in the ocean.
What is the Antarctic Circumpolar Current?
500
The Coriolis effect causes most currents north of the equator to move in this direction.
What is clockwise?
M
e
n
u