Posted: February 21st, 2013
Geology Connections Paper
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What is the structure of the solid earth and how has it changed over time?
I. How do we know the Earth has layers and what are the properties of those layers?
key terms: crust, mantle, outer core, inner core, lithosphere, asthenosphere, mesosphere, p-waves, s-waves, seismic waves, seismograph
II. How do we know how old Earth is?
key terms: relative dating, superposition, fossils, absolute dating, half-life, radioactive decay
III. How do we know the tectonic plates are moving and what causes this movement?
key terms: gravity, sea-floor spreading, subduction, convection, radioactive decay, volcanic hot-spots, geochronology
IV. What does the movement of tectonic plates cause?
key terms: seafloor spreading, mid-ocean ridge, convergent plate boundaries, divergent plate boundaries, transform plate boundaries, ocean trench, mountains, composite volcanoes, shield volcanoes, cinder cone volcanoes, earthquakes, magma
V. How are rocks related to plate tectonics?
key terms: igneous, metamorphic, sedimentary, erosion, weathering, deposition, compaction, cementation, melting, cooling, heat, pressure, convergent and divergent plate boundaries
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