Oceanography Unit 1(100% Everfree answers)
4 priciple oceans listed in order of size correct answersPacific
Atlantic
Indian
Artic
Why is the southern ocean considered to be a fifth principle ocean and where is it located?
correct answersIt is near the continent of Antartica in the Southern Hemisphere and is really
portions of the Pacific, Antlantic, and Indian oceans
What is the difference between an ocean and sea? correct answersseas are smaller and shallower
than oceans
name the 7 seas correct answersred sea
mediterranian sea
persian gulf
black sea
adriatic sea
caspian sea
indian ocean
What is the Marina Trench? correct answersdeepest part of the world's oceans
loacated in the western pacific ocean
trench was created by convergence oceanic plates boundaries and the technotic process of
subbduction
depth: 2,550 kilo (1,580 miles)
Thor Heyerdahl correct answerssailed a balso raft from South America to the Tuamotu Islands
over 11,00 kilometeres away, demonstarting the possibility that south americans could have
traveled to Polynesia just as easily as Asian cultures
Vikings correct answershad excellent ships and navigation skills
activly explored the Atlantic Ocean
colonized Iceland and Greenland
travled to North America by late 10th century
Erik "the Red" Thorvaldson correct answersviking who sailed from Iceland and discovered
Greenland
led the first viking colonists to Greenland in 985
Leif Erikson correct answersson of Erik "the Red"
sailed to Newfoundland (Canada) and named it Vinland after the grapes found there
Christopher Columbous correct answersfinanced by Spanish monarchs to find a new route to the
East Indies across the Atlantic Ocean
, landed in the Carribean and credited with discovering North America, although he never actually
steped foot on the continent
Ferdinand Magellan correct answershis expedition was the first to circumnaviage the globe, he
was killed during his voyage
James Cook correct answersEnglish navigator and prolific explorer
searched for Antartica and mapped many Pacific islands
killed in Hawaii but his expeditions add greatly to the scientific knowledge of the oceans
Steps of the Scientic Method correct answersobservation
hypothesis
testing
theory
What is the difference between a hypothesis and a theory? correct answershypothesis is a testable
statement about the natural world that can be used to build more complex inferences and
eplanations
theory is a well sustained explanation of some aspect of the natural world
What is the nubular hypothesis? correct answersall bodies of the solar system formed from an
enormous cloud composed of mostly hydrogen and helium, with only a small amount of other
elements
Oceanic Crust correct answersunderlies the oceans basins and is composed of igeou rock basalt,
which is dsrk colored and has a relativly high density and is on average about 8 kilometers thick
Basalt originates as molten magma beneath Earth's crust some of which comes to the floor
during underwater sea eruptions
(HIGH DENSITY BASALT, THIN)
Continental Crust correct answerscomposed mostly of lower densty and lighter colored igneous
rock, granite.
less dense and its thickness is about 35 kilometers but can reach 60 kilometers
(LOW DENSITY GRANITE, THICK)
Lithosphere correct answersrelaticley cool, solid, ridgid shell, which includes the Earth's crust
and topmost part of the mantle.
less dense and floats on top of the asthenosphere
Asthenosphere correct answersplastic and will flow when gradual force is applied to it
it forms the base of the upper mantle and is hot enough to partially melt portions of most rocks
more dense than the lithosphere
Basic Steps of the Formation of Earth's Oceans correct answersOutgassing: of water vapor
released from the Earth's core and is cooled. The vapor condenses and fell back to earth,
accumulating in low areas to form the oceans
4 priciple oceans listed in order of size correct answersPacific
Atlantic
Indian
Artic
Why is the southern ocean considered to be a fifth principle ocean and where is it located?
correct answersIt is near the continent of Antartica in the Southern Hemisphere and is really
portions of the Pacific, Antlantic, and Indian oceans
What is the difference between an ocean and sea? correct answersseas are smaller and shallower
than oceans
name the 7 seas correct answersred sea
mediterranian sea
persian gulf
black sea
adriatic sea
caspian sea
indian ocean
What is the Marina Trench? correct answersdeepest part of the world's oceans
loacated in the western pacific ocean
trench was created by convergence oceanic plates boundaries and the technotic process of
subbduction
depth: 2,550 kilo (1,580 miles)
Thor Heyerdahl correct answerssailed a balso raft from South America to the Tuamotu Islands
over 11,00 kilometeres away, demonstarting the possibility that south americans could have
traveled to Polynesia just as easily as Asian cultures
Vikings correct answershad excellent ships and navigation skills
activly explored the Atlantic Ocean
colonized Iceland and Greenland
travled to North America by late 10th century
Erik "the Red" Thorvaldson correct answersviking who sailed from Iceland and discovered
Greenland
led the first viking colonists to Greenland in 985
Leif Erikson correct answersson of Erik "the Red"
sailed to Newfoundland (Canada) and named it Vinland after the grapes found there
Christopher Columbous correct answersfinanced by Spanish monarchs to find a new route to the
East Indies across the Atlantic Ocean
, landed in the Carribean and credited with discovering North America, although he never actually
steped foot on the continent
Ferdinand Magellan correct answershis expedition was the first to circumnaviage the globe, he
was killed during his voyage
James Cook correct answersEnglish navigator and prolific explorer
searched for Antartica and mapped many Pacific islands
killed in Hawaii but his expeditions add greatly to the scientific knowledge of the oceans
Steps of the Scientic Method correct answersobservation
hypothesis
testing
theory
What is the difference between a hypothesis and a theory? correct answershypothesis is a testable
statement about the natural world that can be used to build more complex inferences and
eplanations
theory is a well sustained explanation of some aspect of the natural world
What is the nubular hypothesis? correct answersall bodies of the solar system formed from an
enormous cloud composed of mostly hydrogen and helium, with only a small amount of other
elements
Oceanic Crust correct answersunderlies the oceans basins and is composed of igeou rock basalt,
which is dsrk colored and has a relativly high density and is on average about 8 kilometers thick
Basalt originates as molten magma beneath Earth's crust some of which comes to the floor
during underwater sea eruptions
(HIGH DENSITY BASALT, THIN)
Continental Crust correct answerscomposed mostly of lower densty and lighter colored igneous
rock, granite.
less dense and its thickness is about 35 kilometers but can reach 60 kilometers
(LOW DENSITY GRANITE, THICK)
Lithosphere correct answersrelaticley cool, solid, ridgid shell, which includes the Earth's crust
and topmost part of the mantle.
less dense and floats on top of the asthenosphere
Asthenosphere correct answersplastic and will flow when gradual force is applied to it
it forms the base of the upper mantle and is hot enough to partially melt portions of most rocks
more dense than the lithosphere
Basic Steps of the Formation of Earth's Oceans correct answersOutgassing: of water vapor
released from the Earth's core and is cooled. The vapor condenses and fell back to earth,
accumulating in low areas to form the oceans
