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, the ocean currents move in a direction | clockwise |
Ocean currents are classified as and | warm currents cold currents |
Warm currents start near the | equator |
Cold currents start near the | poles |
Name the oceans | Atlantic,Pacific, Indian |
Which is the largest ocean | Pacific |
What other names do we use for areas of the Atlantic and Pacific Oceans | Arctic and Antarctic Oceans |
A group of connected waves is called a a)crest b)wave length c) wave train d) waves height | c) wave train |
A wave height is the distance between a) two adjacent b) two adjacent troughs c) a crest and a trough d) both a and b | c) a crest and a trough |
Waves are caused by a) tides b) earthquakes c) wind d) all of the above | d) all of the above |
Most waves are caused by a) tides b) earthquakes c) wind d) volcanoes | c) wind |
The distance wind blows over water is called its a) wave length b) fetch c) mileage d) swell | b) fetch |
Most of the earth's water is found in the | oceans |
The oceans lie in huge | trenches |
The part of the continent that is under the ocean is called the | continental shelf |
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 | basins |
Valleys in the continental shelf are called | submarine |
The deepest places along the ocean floor are | mid-ocean ridge |
The deepest trench in the world is the | Marianas |
underwater mountain ranges | mid-ocean ridge |
earth | water planet |
deepest part of the earth | trench |
low part of a continental covered by the ocean | continental shelf |
flat area | plain |
The earth is the only planet | false |
Only our planet has a lot of water | true |
The earth's 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 floor starts at the beginning of the continental shelf | false |
A ridge is a high place on the ocean floor | true |
A submarine canyon is a low 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 breathe comes from | phytoplankton |
Plankton live in the | ocean |
The oceans supply most of the water vapor that returns to earth as | rain and snow |
Without the oceans, our planet would be a planet | dead |
People eat many things that live in the ocean. Three examples are | shellfish, fish, and seaweed |
Trash fish are fish that are not good to . They are made into . | eat fertilizer |
Large deposits of have been discovered along coastal waters. | oil and natural gas |
Ocean water contains every known | mineral |
Three minerals we do take from sea water are | salt, bromine, and manganese |
supply most of the oxygen to the atmosphere | phytoplankton |
floating sea animals | zooplankton |
some minerals we take from the sea | salt,manganese, bromine |
used for fertilizer | trash fish |
used for oil drilling in the ocean | floating platforms |
Green plants give off oxygen | true |
All green plants grow on land | false |
Most of our oxygen comes from zooplankton | false |
Most of our oxygen comes from phytoplankton | true |
Phytoplankton are large | false |
The ocean is an important source of food | true |
Seaweed is a food | true |
The oceans have 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 that the oceans are drying out | false |