Presentation on theme: "CST Review Standard 3 Plate Tectonics operating over geologic time has changed the patterns of land, sea, and mountains on Earth’s surface. Know the features."— Presentation transcript:
1CST Review Standard 3Plate Tectonics operating over geologic time has changed the patterns of land, sea, and mountains on Earth’s surface.Know the features of the ocean floor (magnetic patterns of land, sea, and mountains on Earth’s surface.Know the principal structures that form at the three different kinds of plate boundaries.Know how to explain the properties of rocks based on the physical and chemical conditions in which they formed, including plate tectonic processes.Know there are two kinds of volcanoes: one kind with violent eruptions producing steep slopes and the other kind with voluminous lava flows producing gentle slopes.Know the explanation for the location and properties of volcanoes that are due to hot spots and the explanation for those that are due to subduction.
2Which of the following provides evidence for plate tectonics? Sea floor topography.Ocean currents.Coriolis effect.Atmospheric temperatures.
3The youngest rocks on the ocean floor are typically located near what feature? A midocean ridge.A continental shelf.An abyssal plain.A subduction trench.
4A rift valley is evidence of which kind of plate boundary? convergentdivergenttransformuniform
5The convergence (convergent) of two continental plates would produce Island arcs.Rift valleys.Folded mountains.trenches.
6Which of the following is most responsible for the formation of new crust at the edge of a tectonic plate?Mountain building at a continent-continent convergent boundary.Magma rising up from the mantle at a divergent boundary.Two tectonic plates sliding past one another at a transform boundary.Subduction of one oceanic plate uner another at a convergent boundary.
7It is generally true that igneous rocks Contain primarily evaporites.Can be scratched with a penny.Normally contain fossils.Are composed of silicate materials.
8Cooling rates of igneous rocks can be estimated by comparing rocks’ Crystal sizes.composition.density.Chemical reactivity.
9Which of the following would most likely produce a fragmental (broken up) sedimentary rock? Magma fractured on the ocean floor.Calcite crystallized from seawater.Gravel deposited in a silt bed.Limestone dissolved in cave formation.
10Energy is transferred between Earth’s surface and the atmosphere by these three mechanisms. A: Conduction, convection, and radiation
11Define reversed polarity. A magnetic field that points south.
12Continents move because of ____ _____. As they move their _____changes. Plate tectonicsLatitude
13A change in latitude causes a change in the continent’s ______. Climate.
14One proof of plate tectonics is that different continents have the same ______. The tropical plant fossils are found in Antarctica because it was once near the _____.FossilsEquator
15The ice age at the end of the Cretaceous period was caused by a large _____. The dust ____the sun which caused extremely ____temperatures and a mass ____of many living organisms.MeteoriteBlockedColdExtinction
55_____________rock forms after erosion has __________ _________Earth’s surface and the sediments are then compacted and ______________ together by pressure.SedimentaryBroken downCemented
56Igneous rocks are formed by cooled _____________ Igneous rocks are formed by cooled _____________. When it cools slowly _______ crystals form and when it cools quickly ________________ crystals form.LavaLargeSmall
57Igneous rock found beneath Earth’s surface is ____________________ and igneous rock found on top of Earth’s surface is _______________________.IntrusiveExtrusive
58Basalt is an _________rock found at divergent boundaries where there is ________________. IgneousSeafloor spreading
59Metamorphic rock is formed when ____________ and _______________change rocks. Heat Pressure
60The focus of an earthquake is located _______ the Earth’s crust and the epicenter is located directly _______________ the focus.Inside Above
61The two seismic body waves are __________ and ______________. PrimarySecondary
62The two seismic body waves are __________and______________ PrimarySecondary
63_________________ detect seismic waves and _______________ record seismic waves. SeismometersSeismographs
64Seismograms show that _______ waves arrive first and ____________ waves arrive second. P (primary)S (secondary)
65Primary waves move ____________ and secondary waves move ________________. The ____________________ is causes the most damage.ParallelSide to sideS wave
66Seismologist use ________________ seismograms to determine the location of the epicenter by _______________.ThreeTriangulation
67The Mercalli scale measures the _______________ of the earthquake and the Richter scale measures the _____________ of an earthquake.IntensityMagnitude
68Volcanoes in the middle of the plate form from _________ _______ Volcanoes in the middle of the plate form from _________ _______. They are _________________ volcanoes and have _______________ viscosityHot spotsShieldLow
69Cinder volcanoes have ____________ viscosity because the magma has a _________ silica content and __________________ temperatures.High Cooler
70Cinder volcanoes have ______________ eruptions because: 1) the viscosity of the magma is ______________, 2) it has trapped and dissolved ____________, 3) and it has built up ______________.ExplosiveHighGasesPressure
71Ash shot into the air can __________ solar radiation and ______________ the Earth’s surface temperature.BlockDecrease
72The primary factors that determine the eruption of a volcano are 1) magma ____________, 2) magma______________________, 3) gas _____________.CompositionTemperaturePressure
73The main differences between shield, cinder, and composite volcanoes are the types of _______________, the __________ of the sides, and the ______________.LavaSteepnessHeight