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Chapter 2:1 Views of Earth- Landforms
Chapter 2:1 Views of Earth- Landforms
Chapter 2:1 Views of Earth- Landforms
Chapter 2:1 Views of Earth- Landforms
Chapter 2:1 Views of Earth- Landforms
Chapter 2:1 Views of Earth- Landforms
Chapter 2:1 Views of Earth- Landforms
Chapter 2:1 Views of Earth- Landforms
Chapter 2:1 Views of Earth- Landforms
Chapter 2:1 Views of Earth- Landforms
Chapter 2:1 Views of Earth- Landforms
Chapter 2:1 Views of Earth- Landforms
Chapter 2:1 Views of Earth- Landforms
Chapter 2:1 Views of Earth- Landforms
Chapter 2:1 Views of Earth- Landforms
Chapter 2:1 Views of Earth- Landforms
Chapter 2:1 Views of Earth- Landforms
Chapter 2:1 Views of Earth- Landforms
Chapter 2:1 Views of Earth- Landforms
Chapter 2:1 Views of Earth- Landforms
Chapter 2:1 Views of Earth- Landforms
Chapter 2:1 Views of Earth- Landforms
Chapter 2:1 Views of Earth- Landforms
Chapter 2:1 Views of Earth- Landforms
Chapter 2:1 Views of Earth- Landforms
Chapter 2:1 Views of Earth- Landforms
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Chapter 2:1 Views of Earth- Landforms

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Transcript

  • 1.  
  • 2. Chapter: Views of Earth Table of Contents Section 3: Maps Section 1: Landforms Section 2: Viewpoints
  • 3.
    • The three basic types of landforms are plains, plateaus, and mountains.
    Landforms Landforms 1
  • 4.
    • Plains are large, flat areas, often found in the interior regions of continents.
    Plains Landforms 1
    • Plains often have thick, fertile soils
    and abundant, grassy meadows suitable for grazing animals.
  • 5. Plains Landforms 1
    • Plains also are home to a variety of wildlife, including foxes, ground squirrels, and snakes.
    • When plains are
    found near the ocean, they’re called coastal plains.
  • 6.
    • A coastal plain is often called a lowland because it is lower in elevation, or distance above sea level, than the land around it.
    Coastal Plains Landforms 1
  • 7.
    • The Atlantic Coastal Plain is a good example of this type of landform.
    Coastal Plains Landforms 1
    • This area has low rolling hills, swamps, and marshes.
  • 8. Coastal Plains Landforms 1
  • 9.
    • The Atlantic Coastal Plain began forming about 70 million years ago as sediment began accumulating on the ocean floor.
    Coastal Plains Landforms 1
    • Sea level eventually dropped, and the seafloor was exposed.
    • The costal plain is the result of sedimentation.
    • As a result, the coastal plain was born.
  • 10.
    • The central portion of the United States is comprised largely of interior plains.
    Interior Plains Landforms 1
    • A large part of the interior plains is known as the Great Plains.
    • It is a flat, grassy, dry area with few trees.
    • The Great Plains consist of nearly horizontal layers of sedimentary rocks.
  • 11.
    • Plateaus are flat, raised areas of land made up of nearly horizontal rocks that have been uplifted by forces within Earth.
    Plateaus Landforms 1
    • They are different from plains in that their edges rise steeply from the land around them.
  • 12.
    • The world’s highest mountain peak is Mount Everest in the Himalaya — more than 8,800 m above sea level.
    Mountains Landforms 1
    • The four main types of mountains are folded, upwarped, fault-blocked, and volcanic.
  • 13.
    • The Appalachian Mountains and the Rocky Mountains in Canada are comprised of folded rock layers.
    Folded Mountains Landforms 1
    • In folded mountains , the rock layers are folded like a rug that has been pushed up against a wall.
  • 14. Folded Mountains Landforms 1
    • To form folded mountains, tremendous forces inside Earth squeeze horizontal rock layers,
    causing them to fold.
  • 15.
    • The southern Rocky Mountains in Colorado and New Mexico are upwarped mountains.
    Upwarped Mountains Landforms 1
    • High peaks and sharp ridges are common to this type of mountain.
  • 16. Upwarped Mountains Landforms 1
    • Upwarped mountains form when blocks of
    Earth’s crust are pushed up by forces inside Earth.
  • 17. Fault-Block Mountains Landforms 1
    • Fault-block mountains are made of huge,
    tilted blocks of rock that are separated from surrounding rock by faults.
  • 18.
    • These faults are large fractures in rock along which mostly vertical movement has occurred.
    Fault-Block Mountains Landforms 1
    • When these mountains formed, one block was pushed up, while the adjacent block dropped down.
    • This mountain-building process produces majestic peaks and steep slopes.
  • 19. Volcanic Mountains Landforms 1
    • The deposited materials pile up, layer upon layer, until a cone-shaped structure forms.
    • Volcanic mountains begin to form when molten material reaches the surface through a weak area of the
    crust .
  • 20. Section Check 1 Question 1 ________ are flat, raised areas of land with horizontal rocks that were uplifted. A. Coastal plains B. Interior plains C. Mountains D. Plateaus NC: 5.01, 5.03
  • 21. 1 Section Check Answer The answer is D. Plateaus are found at higher elevations than plains. NC: 5.01, 5.03
  • 22. Section Check 1 Question 2 When molten material reaches Earth’s surface through a weak area, _______ mountains begin to form. A. fault-block B. folded C. upwarped D. volcani c NC: 5.01, 5.03
  • 23. 1 Section Check Answer The answer is D. Mount St. Helens and Mount Shasta are volcanic mountains. NC: 5.01, 5.03
  • 24. Section Check 1 Question 3 Describe the difference between the formation of folded mountains and fault-block mountains. NC: 5.01, 5.03
  • 25. 1 Section Check Answer Folded mountains form when rock layers are squeezed from opposite sides. NC: 5.01, 5.03
  • 26. 1 Section Check Answer Fault-block mountains form when some rock blocks move up along a fracture and an adjacent block moves down. NC: 5.01, 5.03

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