Classic Classic Quiz Science (Gr 6) Earth's Layers Part 2 by Betteker Betteker 2 433 played - 12 yrs ago Layers of the earth QUIZ 27 QUESTIONS hard 1 The layer of hot solid material between the crust and the core. CrustMantleLithosphere 2 The layer of rock that forms the Earth's outer skin. MantleInner coreCrust 3 Geologists often group the crust and uppermost mantle into a single layer called the ________. LithosphereAsthenosphereMesosphere 4 This is a very soft layer found below the lithosphere. GeosphereAsthenosphereMesosphere 5 These currents make the lithosphere move. Sea floor spreading currentsConvection currentsSubduction currents 6 This is a very hot area found below the asthenosphere. LithosphereMesosphereGeosphere 7 The process by which the ocean floor sinks beneath a deep ocean trench and back into the mantle again. LithosphereSubductionTectonics 8 The Earth's lithosphere is a solid outer shell broken into pieces separated by cracks. Seismic wavesSubduction piecesPlates 9 Shaking and trembling that results from movement of rock beneath the Earth's surface. Seismic wavesEarthquakesSubduction 10 The Earth's plates are in slow constant motion driven by convection currents in the mantle. Plate subduction theoryPlate tectonic theorySeismic wave theory 11 Vibrations that are similar to sound waves. Subduction wavesTectonic wavesSeismic waves 12 The mixture of hot gases, ash, cinders, and bombs that flow down the sides of a volcano when it erupts explosively. Pahoehoe flowPyroclastic flowPandemonium flow 13 What are p or primary waves? Molten lava wavesFirst earthquake wavesPahoehoe waves 14 ________ forms from fast-moving hot lava that is thin and runny. Molten lavaPahoehoePyroclastic flow 15 Aa froms from lava that is _______, ________, and ________. Hotter, thinner, and faster.Cooler, thicker, and slower.Hotter, thicker, and slower. 16 What is the definition of pyroclastic flow? A mix of oxygen and silicon that forms magma that flows down the sides of a volcano.Hot gases, ashes, cinders that flow down the sides of a volcanoFast moving hot lava that is thin and runny. 17 What are the two types of volcanic eruptions? Silent and deadlyQuiet and explosiveQuiet and violent 18 When a volcano erupts, the force of _________ gases pushes _____ from the magma chamber through the pipe until it flows or explodes out of the vent. Silica, lavaExpanding, magmaErupting, silica 19 Molten rock and gas leave the volcano through an opening called a _____. HoleCraterVent 20 A bowl shaped area that may form at the top of a volcano around the central vent. PipeMagma chamberCrater 21 When earthquakes occur they produce ______. Seismic wavesShaking wavesPressure 22 The 3 main layers of the Earth are the crust, mantle, and core. These layers vary greatly in size, composition, temperature, and pressure. TrueFalseN/A 23 The crust is a layer of solid rock that includes both dry land and the ocean floor. TrueFalseN/A 24 This type of rock is dark, fine-grained rock (oceanic crust). GraniteBasaltSediment 25 This type of rock is light in color and has course grains (continental crust). GraniteBasaltSediment 26 This layer is referred to as being able to bend like a metal spoon even though it is solid. LithosphereAsthenosphereMesosphere 27 Who proposed the continental drift theory which stated the continents slowly moved across the Earth's surface? Harry HessAlfred WegenerHenry Wegener A mistake in this Quiz ? Contact the author Commentaires
