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science studdy guide
This is a study guide for the next science test
Question | Answer |
---|---|
The general movements of the ocean waters are called | ocean currents |
The chief cause of ocean currents is the | global winds |
The turning of the earth makes the currents | move at an angle |
An ocean current turns about when it comes near a | continent |
In the part of the world you live in,the ocean currents move in direction | clockwise |
Ocean currents are classified as | warm currents and cold currents |
warm currents start near the | equator |
Cold currents start near the | Poles |
Name the 5 oceans on that study guide map. | Pacific,Atlantic,Indian,Arctic,Antarctic |
A group of connected waves are called | wave train |
A wave height is the distance between | A crest and a trough |
Waves are caused by | tides,earthquakes,and wind. |
Most waves are caused by | winds |
The distance wind blows over water is called its | fetch |
A wavelength is the distance between | two adjacent crests and two adjacent troughs |
Wave size is effected by | wind speed,fetch,and time wind last |
As a wave becomes a breaker,its wavelength | decreases |
As a wave becomes a a breaker,its wave height | increases |
Continental shelf | hill were the ocean flat and then goes into a steep curve |
Continental slope | the sharp cut of of the continental shelf and it just drops. |
Deep sea basin | basin begin at the bottom of the ocean floor |
Volcanic Mountain | Mountain that sticks out of the water |
Submarine canyon | A big underwater mountain |
mid ocean ridge | mountains that run in the middle of the ocean |
Plain | Ocean floor flat areas |
Most of earths water is found in the | ocean |
The ocean lies in huge | basins |
The part of the continent that is under the ocean is called the | continental slope |
The continental shelf slopes | gradually |
At the end of the continental slope,the ocean floor drops | sharply |
The deep sea basin starts at the end of the | continental slope |
Mountain ranges in the ocean are called | mid ocean ridges |
Valleys in the continental shelf are called | submarine canyons |
The deepest places along the ocean floor are | trenches |
The deepest trench in the world is the | Marianas |
Water planet | Earth |
Continental shelf | low part of the continent that is covered by ocean |
Plain | flat area |
trench | deepest part of the earth |
mid ocean ridges | underwater mountain ranges |
The earth is the only planet.......True of false | false |
only our planet has a lot of water | true |
the earths water layer is called the atmosphere | false |
the continental shelf has a gentle slant | true |
the continental slope has a gentle slant | false |
the deep sea starts at the begging of the continental shelf | false |
A submarine canyon is low place on the ocean floor | true |
A ridge is a high place on the ocean floor | true |
A submarine canyon is deeper than a trench | false |
The ocean floor has some flat places | true |
Most of the oxygen we breath come from | phytoplankton |
Plankton live in the | ocean |
The ocean supply most of the water vapor that returns to earth as | rain and snow |
Without the ocean our planet would be a | dead planet |
People eat many thing s hat live in the ocean,three examples are | fish,seaweed,shellfish |
Trash fish are fish that are not good to ______.They are made into___________ | eat,fertilizer |
Large deposits of _____ and _____ has been discovered along parts of water | oil and natural gas |
ocean water contains every known | mineral |
Three minerals we take from the sea are | salt manganese and bromine |
Phytoplankton | supplies most oxygen to the earth |
zooplankton | floating sea animals |
salt manganese and bromine | some minerals we take from the sea |
trash fish | used for fertilizer |
floating platforms | used for oil drilling in the ocean |
Green plants give of oxygen....true or false | true |
All green plants grow on land | false |
most of our oxygen come from zooplankton | false |
most of our oxygen come from phytoplankton | true |
plankton are large | false |
The ocean is a important source for food | true |
Seaweed is a food | true |
The ocean has only small deposits of oil | false |
Every mineral we use comes from the ocean | false |
Huge amounts of water evaporate from the ocean,this means the ocean can dry out | false |