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