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geos study guide defintions

geos study guide defintions - Science is a way to use...

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Science is a way to use observations of past events to create models that can predict future events 3 steps of sp: obs-model-prediction science is a systematic way of making and testing models laws, theories, hypothesis (all models) 4 rules for creating scientific knowledge - universal: scientific knowledge applies at all times and places, will give some result anywhere, anytime - simple: explains the most diff phen w/ simplest models -testable: based on obs and experiments - coherent: internally consistent, one bit of s.k does not logically contradict other s.k the psychological perception of risk often does not correlate w/ actual risk (1) geothermal heat melts rocks in the mantle. The less dense magma rises due to buoyancy and erupts at the earth’s surface (2) global tectonic theory: states that the earth’s surface consists of several rigid plates created at: mid-ocean ridges, destroyed at subduction zones, slide past eachother on transform faults. (5-7) Three major parts of earth: crust: contains mostly silicate minerals, rigid. Mantle made of silicate minerals, upper rigid, lower plastic. Core, contains metallic iron and nickel, outer core is molten inner is solid (3)
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