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Chapter 7, Lesson 2 - Landforms


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Chapter 7, Lesson 2 - Landforms

  1. 1. runoff tributary watershed sedimentChapter 7, meander flood plain Lesson 2 deltaLandforms water gap canyon valley dune landslide
  2. 2. runoff – water that runs off Earth’s solid surface
  3. 3. tributary – “feeder” streams; small streams and rivers that “feed” into other streams and rivers forming larger streams and rivers
  4. 4. watershed – the entire area from which water is drained
  5. 5. sediment – pieces of material; sediment can range in size from boulders to gravel, sand, silt and dissolved materials
  6. 6. meander – bends, or “S” shapes in a river cause by river currents slowing down in flat land and dropping sediment Click here to learn more about rivers and coasts!
  7. 7. flood plain – flat landscape near rivers; the rivers flood the land from time to time and create very fertile soil.
  8. 8. mouth (of river) – where a river empties into theocean; river currents slow when they hit the ocean and drop sediment
  9. 9. delta – a fan-shaped piece of land that formsfrom sediment dropped at the mouth of a river
  10. 10. water gap – a rare, narrow, steep-walled canyon created as water cut through hard rock
  11. 11. valley – formed when small channels are deepened and widened by erosion
  12. 12. canyon – a deep, V-shaped valley that is usually created as a result of both water cutting into earth and geological forces pushing earth upward
  13. 13. dune – sand hill created by wind erosion; found in deserts or at the beach
  14. 14. landslide – when water saturates the land andmakes soil loosen and fall; gravity can create landslides, too