1) Name the layers of the Earth. a) Crust, mantle, core b) Crust, mantle, inner core, outer core c) Crust, mantle, ocean 2) Which layer is closest to the surface? a) Crust b) mantle c) core 3) Which layer is liquid? a) crust b) mantle c) inner core d) outer core 4) Which 2 elements make up the core? a) oxygen & iron b) oxygen & nickel c) iron & nickel 5) What have scientists studied to find out about the structure of the Earth? a) Earthquakes and rocks b) Seismic waves c) Wikipedia 6) What is the Earth’s crust made up of? a) soil b) oceans c) solid rock 7) What are rocks made up of? a) grains b) grains containing minerals c) minerals containing grains 8) What is the mantle made of? a) molten rock b) solid rock c) liquid rock 9) What causes some rock in the mantle to partly melt? a) extreme heat from the core b) extreme heat from the sun c) movements inside the core 10) What type of grains make up sedimentary rock? a) Rounded grains b) interlocking grains c) sand 11) Why are most sedimentary rocks porous? a) they have air spaces between the grains b) they have no space between the grains c) they have tiny towels between the grains 12) What does weathering do to rocks?  What does weathering do to rocks? a) cements them together b) moves grains way c) breaks them into smaller pieces 13) Give an example of physical weathering a) tree roots b) acid rain c) regular changes in temperature 14) What does erosion mean? a) breaking of rocks AND their movement away (transport). b) just moving broken rock away c) rocks being dissolved by acid rain 15) Which type of sedimentary rock can be weathered by acid rain? a) sandstone b) limestaone c) conglomerate 16) Name the process by which sediments settle in one place. a) chilling b) deposition c) sediments 17) How are strata formed? a) when sediments are deposited in layers b) when rocks break apart c) when rocks are eroded 18) What happens to sediments during compaction? a) they are stuck togteher b) they are squashed together c) they are deposited in layers 19) Name the process when sediments are stuck together. a) compaction b) cementation c) erosion

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