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Earth Science

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  • the movement of soil, rock, or sediment by the surface processes of the Earth
    erosion
  • forces that shape the Earth's land by building up mountains and other landforms
    constructive forces
  • all of the water that exists anywhere in or on th Earth, in any form
    hydrosphere
  • When talking about rock, which word means melted?
    molten
  • Which layer of the Earth is the thinnest?
    crust
  • a process where a glacier picks up rocks as it moves across the land
    plucking
  • What happens when groundwater causes the top of a cavern to collapse in on itself?
    sink hole
  • Why does the Earth's core remain in a solid state even though it is hot enough to be melted?
    Because of gravity, the pressure is too strong to allow the molecules to spread out and become liquid.
  • Which type of rocks are formed when layers of sediment are pressed together by the pressure inside the Earth?
    sedimentary
  • a process where a glacier scratches into the rocky surface as it moves across the land
    abrasion
  • an area of wave-washed sediment along a coast
    beach
  • How were the Great Lakes formed?
    Glaciers moving across the land dug out the rock.
  • What are the wo types of glaciers?
    continental glaciers and valley glaciers
  • a group of separate parts, each with its own function, that work together as a whole
    system
  • The wearing away of something by exposure to wind, water, or living organisms
    weathering
  • times in the past when glaciers covered large portions of the Earth's surface
    ice ages
  • Which layer of the Earth is the hottest?
    inner core
  • the process by which soil, rock, and sediment build up into a landmass
    deposition
  • What is the core of the Earth made of? (be specific)
    solid iron and nickel
  • Name the layers of the Earth, in order, starting at the surface and heading inside.
    crust, mantle, inner core, outer core