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| pacific, atlantic, indian, arctic |
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Definition
| great cosmic explosion 13.7 billion years ago |
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Definition
| mass of a given volume of a substance |
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Definition
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| has a dark color, type of mineral found on ocean floor |
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Definition
| what most continental rocks are called |
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Term
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Definition
| once been joined as a supercontinent, called pangea |
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Definition
| a process that involves the entire surface of our planet |
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Definition
| a continuous chain of submarine volcanic mountains that encircle the globe |
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Definition
| cracks in the earths crust |
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Definition
| loose material like sand and mud that settles at the bottom |
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Definition
| sea-floor rocks have patterns of magnetic bands, that run parallel to the mid-ocean ridge |
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Definition
| huge pieces of oceanic crust are separating at the mid-ocean ridges, creating cracks in the crust |
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Term
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Definition
| rock sphere, the uppermost part of the mantle |
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Definition
| what the lithosphere floats on top of |
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Definition
| downward movement of plate into the mantle |
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Definition
| the volcanic island chains associated with the trenches follow the threnches' curvature |
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| when plates slid past each other, what creates earthquakes |
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| heat from earth's core causes the mantle to swirl like thick soup heating in a saucepan |
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Definition
| the vast ocean that surrounded pangea |
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Definition
| pangea was separated into to large continents |
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Definition
| most common kind of lithogenous sediment on the ocean floor |
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Definition
| consists of skeletons and shells of marine organisms |
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Definition
| small dead caracases found on the ocean floor |
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Definition
| we are currently in an interglacial period, where there is no ice age |
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Definition
| global temperatures and the rate of glacial melting are now increasing rapidly and sea level is projected to continue to rise for the next century |
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Definition
| sound navigation ranging, based on the detection of underwater echoes |
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Term
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Definition
| self contained underwater breathing apparatus |
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Definition
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Definition
| the set of procedures by which scientists learn about the world |
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Term
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Definition
| one uses separate observations to arrive to at general principles |
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Term
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Definition
| reasoning from general principles to specific conclusions |
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| a statement that might be true |
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Definition
| factors that might effect observations |
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| variables that are prevented from affecting an experiment are said to be called controlled, the experiment is called this |
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| refers to a controversial or provisional hypothesis |
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