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68 Cards in this Set

  • Front
  • Back
percentage of water contained in oceans
97.20%
percent of Earth's surface covered by water
70.80%
name by descending order of area the four main oceans
Pacific, Atlantic, Indian, Arctic
who named the Pacific Ocean and why
Magellan; it was calm (paci=peace)
who was the Atlantic Ocean named after
Atlas, a Titan from Greek mythology
what is another name for the Antarctic Ocean
Southern Ocean
average depth of all oceans
3729 m
deepest trench, and deepest spot in trench
Mariana Trench; Challenger Deep (11km)
highest mountain measured from base
Mauna Kea, Hawaii
highest active volcano measured from base
Mauna Loa, Hawaii
name by descending order of depth the four main oceans
Pacific, Atlantic, Indian, Arctic
Challenger Deep was explored by what submersible; designed by who?
Trieste; Auguste Piccard, Swiss
what type of sub was Trieste
bathyscaphe
a steel ball with windows and can hold a person
bathysphere
who pioneered the use of a submersible, specifically a bathysphere
Barton and Beebe
maps of Pacific islands used by ancient Polynesians
stick charts
Polynesians starting settling islands nearest to what continent
Asia
name the order of island groups settled by Pacific people
Micronesia, Melanesia, Polynesia
what group of people circumnavigated Africa in 590 BC
Phoenicians
who determined how to find latitude using stars
Pytheas, a Greek
who measured the circumference of the Earth very accurately in ancient times
Eratosthenes, a Greek
where did the Vikings have colonies
Greenland and Iceland
synonymous with line of latitude
parallel
synonymous with line of longitude
meridian
30-year period from 1492-1522
Age of Discovery
sailed from Spain to North America, thinking he had reached Asia
Christopher Columbus
which European first saw the Pacific Ocean
Balboa
what ship made the first circumnavigation of the world; who led the trip
Victoria; Magellan, then del Cano
Magellan was killed here
Philippines
who mapped out significant portions of the Pacific and islands
James Cook
Cook's 3 ships
Adventure, Endeavour, Resolution
James Cook avoided scurvy by feeding his crew what food
sauerkraut, high in vitamin C
Cook was killed here
Hawaii
NOAA stands for
National Ocean and Atmospheric Administration
who created a chronometer that allowed for accurate determination of longitude
John Harrison
3 points of the Bermuda Triangle
Bermuda, Miami, San Juan
name the compositional layers of Earth from inside to outside
core, mantle, crust
name the mechanical layers of Earth from inside to outside
inner core, outer core, mesosphere, asthenosphere, lithosphere
average thickness of lithosphere
100 km
average thickness of oceanic crust
8 km
average thickness of continental crust
35 km
composition of core
iron, nickel
composition of mantle
iron and magnesium silicates
composition of crust
silicates (silicon, oxygen)
transition from mantle to crust
Mohorovicic discontinuity, or the "Moho"
rock composition of oceanic crust; density
basalt; 3 g/mL
rock composition of continental crust; density
granite; 2.7 g/mL
the resistance of a fluid to flow
viscosity
principle of buoyancy of lithospheric plates on asthenosphere
isostasy or isostatic adjustment
where did the oceans originate
outgassing from inner Earth
why are comets not a likely source of oceans' water
wrong type of hydrogen
where did ocean salts come from
outgassing, then dissolved in water
who did an experiment that showed organic molecules could be made from inorganic molecules
Stanley Miller
2 main ingredients needed in Miller's experiment beside the inorganic molecules
UV light, electrical spark
two main gases in Earth's early atmosphere
hydrogen, helium
gases in today's atmosphere and their percentages excluding water
nitrogen 78%, oxygen 21%, argon 0.93%
how long ago did primitive bacteria form
3.5 billion years ago
age of Earth
4.6 billion years
who proposed natural selection and coral reef development
Charles Darwin
heterotrophs that don't need oxygen
anaerobes
Darwin's ship
HMS Beagle
animals that Darwin studied most on Galapagos Islands
finches
autotrophic process using light as the energy source
photosynthesis
autotrophic process using inorganic molecules (hydrogen sulfide) at hydrothermal vents as the energy source
chemosynthesis
products of respiration
carbon dioxide and water
products of photosynthesis
glucose and oxygen
way to determine ages of sediments using half-lives of isotopes
radiometric dating
circumference of the Earth
40,000 km