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Chapter4 Oceans Motions Mrs.Mirabello/Everett
Chapter 4 Oceans Motions Mrs.Mirabello/Everett
37
Science
6th Grade
03/24/2011

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Term
As the salinity of water increases
Definition
The density increases
Term
High tide
Definition
occurs as places on Earth's surface pass through the areas of tidal bulges
Term
Sodium Chloride
Definition
The most abundant salt in ocean water
Term
Surface currents that flow from the tropics toward the poles
Definition
carry warm water
Term
Wave
Definition
the movement of energy through a body of water
Term
wavelength
Definition
The horizontal distance between wave crests
Term
As a wave nears the shore
Definition
the wave height increases and wavelength decreases
Term
Tsunamis
Definition
Most common in the Pacific Ocean; caused by an earthquake on the ocean floor
Term
rip current
Definition
A rush a water that flows rapidly back to sea through a narrow opening
Term
Dunes
Definition
Reduce beach erosion because the roots of dune plants hold the sand in place
Term
Tides
Definition
Caused by the interaction of Earth, moon, and sun
Term
Neap Tide
Definition
Tide with the least difference between low and high tide
Term
Salinity
Definition
The measure of dissolved salts in water
Term
The deep zone
Definition
Where the most dense ocean water is generally found
Term
Temperature decreases
Definition
As you descend through the water column
Term
Current
Definition
A large stream of moving water that flows through the oceans
Term
Coriolis effect
Definition
The reason why in the Northern hemisphere currents curve to the right
Term
Upwelling
Definition
The movement of cold, deep ocean water to replace warm water at the surface
Term
Wind
Definition
Causes waves on the surface of the ocean
Term
Trough
Definition
The lowest point of a wave
Term
Surface Zone
Definition
Zone in which the ocean temperature is most affected by the weather
Term
How often do high tides occur?
Definition
Every 12 hours
Term
El Nino
Definition
Can cause severe storms and can prevent upwelling in certain areas.
Term
Wave Height
Definition
The vertical distance between the crest and trough of a wave
Term
Long Shore Drift
Definition
The movement of sand along a beach
Term
Spring Tide
Definition
The greatest difference in the heights of high and low tides
Term
Transition Zone
Definition
Where the temperature of ocean water drops very quickly
Term
35 grams of salt per kilogram of water
Definition
The average salinity of ocean water
Term
Dunes
Definition
Hills of wind blown sand that help prevent beach erosion
Term
Gulf Stream
Definition
A large powerful warm surface current in the Atlantic Ocean that affect the climate of land in its path
Term
A bay at the mouth of a big river
Definition
is an area that is likely to have the lowest amount of salinity compared to other areas of an ocean
Term
When a tsunami hits the shore, it can be very destructive because of its large
Definition
wave height
Term
One way that waves shape the beach is to break up rock and carry it away in a process called
Definition
erosion
Term
Tides
Definition
caused by the force of the sun and moon's GRAVITY pulling on the Earth
Term
Be able to contrast spring and neap tides and their causes
Definition
Term
Wave Frequency
Definition
The number of waves that pass a point in a certain amount of time
Term
Salt water would lift a raft higher than fresh water because
Definition
Ocean water has a higher salinity rate than fresh water which makes ocean water denser thus giving it more buoyancy
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