Plate Tectonics page
Essential Question #1: How does Sea-Floor Spreading, Continental Drift and convection currents support the theory of Plate Tectonics (mountain formation, volcanoes, and earthquakes)?
**Vocabulary - Section 1 - seismic waves, pressure, crust, basalt, granite, mantle, lithosphere, asthenosphere,
outer core, inner core
Section 2 - radiation, conduction, convection, density, convection current
Section 3 - continental drift, Pangaea, fossil
Section 4 - mid-ocean ridge, sonar, sea-floor spreading, deep-ocean trench, subduction
Section 5 - plate, scientific theory, plate tectonics, fault, divergent boundary, rift valley,
convergent boundary, transform boundary
Essential question #1 - How does stress affect Earth's crust?
**Vocabulary - Section 1 - stress, tension, compression, shearing, normal fault, hanging wall, footwall, reverse fault,
strike-slip fault, anticline, syncline, plateau
Section 2 - earthquake, focus, epicenter, P wave, S wave, surface wave, Mercalli scale, magnitude,
Richter scale, seismograph, moment magnitude scale
Section 3 - seismogram, friction
Section 4 - liquefaction, aftershock, tsunami, base-isolated building
Essential Questions 1 - What causes volcanoes and how do they affect Earth's surface?
**Vocabulary - Section 1 - volcano, magma, lava, Ring of Fire, island arc, hot spot
Section 2 - element, compound, physical properties, chemical properties, viscosity, silica, pahoehoe,
Section 3 - magma chamber, pipe, vent, lava flow, crater, pyroclastic flow, dormant, extinct
Section 4 - shield volcano, cinder cone, composite volcano, caldera, volcanic neck, dike, sill,
batholith, geothermal activity, geyser