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Changes to the Land

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  • What type of valley does a river form?
    A river forms a V shaped valley.
  • What force makes fjords?
    Glaciers (ice) make fjords.
  • What is a feature on the surface of Earth such as a mountain, hill, dune, ocean, or river?
    A landform.
  • What will the Mississippi River delta look like 2,000 years from now?
    The Mississippi River delta will continually growing.
  • What is the buildup of land by the settlement of sediment and soil in a new location?
    Deposition
  • How do stalactites and stalagmites form?
    They form from the deposition of minerals in caves.
  • What is erosion?
    Erosion is the removal and movement of sediment from one place to another by gravity, water, wind, or ice.
  • What is a deep ravine between cliffs that is most often carved from the landscape by a river?
    A canyon.
  • What causes slow changes to the Earth’s surface?
    Water, wind, and ice cause slow changes to the Earth’s surface.
  • What force makes canyons?
    Water or Wind
  • How do rock arches form?
    Rock arches form when wind chips away at the structure.
  • What force makes sand dunes?
    Wind
  • What is a low area between higher areas of elevation?
    A valley.
  • What landform was created by the glacier (ice)?
    A U-shaped valley was created by the glacier.
  • What is a triangular landform where a river empties into another body of water?
    A delta.
  • What landform was created by moving water?
    A canyon and a delta were created by moving water.
  • What Earth process makes deltas?
    Deposition
  • What landform is made when water in the form of rain hits the rock over time eroding away pieces, creating an opening?
    A cave.
  • What Earth's process makes sand dunes?
    Deposition
  • How do buttes form?
    Buttes form when the wind blows over time and chips away the softer parts of the rock.
  • How was the Grand Canyon formed?
    The Grand Canyon was formed over millions of years by the Colorado River that flowed over the land and eroded away the rock.
  • What force makes caves?
    Water. makes caves.
  • What force makes a sea arch?
    Ocean waves makes a sea arch.
  • What is a hill formed by wind blowing and depositing sand?
    A sand dune.
  • What is weathering?
    Weathering is the breakdown of rocks into very small particles by gravity, water, wind, and ice.
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