Lesson 5

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Lesson 5

  1. 1. Shaping Earths surface
  2. 2. What is Weathering
  3. 3. What is WeatheringWeathering: The process through whichrocks or other materials are broken down
  4. 4. What is WeatheringWeathering: The process through whichrocks or other materials are broken downPhysical Weathering: Caused by temperature change, pulling, pushing, or rubbing
  5. 5. What is WeatheringWeathering: The process through whichrocks or other materials are broken downPhysical Weathering: Caused by temperature change, pulling, pushing, or rubbingChemical Weathering: Occurs when Chemicals break down rocks
  6. 6. What is erosion
  7. 7. What is erosionMudslides: When the ground can’t hold holdanymore water
  8. 8. What is erosionMudslides: When the ground can’t hold holdanymore waterErosion: When weathered Rock is moved fromone place to another Land can be eroded 5 ways gravity, glaciers, running water, waves, wind
  9. 9. What is erosionMudslides: When the ground can’t hold holdanymore waterErosion: When weathered Rock is moved fromone place to another Land can be eroded 5 ways gravity, glaciers, running water, waves, windLandslide: is the movement of a large amountsof rocks down a slope
  10. 10. Glaciers
  11. 11. GlaciersGlaciers: Large mass of slowly flowing ice
  12. 12. What is Deposition
  13. 13. What is DepositionDeposition: Eroded materials are droppedoff in another place
  14. 14. What is DepositionDeposition: Eroded materials are droppedoff in another placeMeanders: Gentle loops sometimes form anrivers with slow moving water
  15. 15. What is DepositionDeposition: Eroded materials are droppedoff in another placeMeanders: Gentle loops sometimes form anrivers with slow moving waterSediment: Particles of soil and rock arecarried along in the water
  16. 16. Erosion and Deposition by waves
  17. 17. Erosion and Deposition by wavesHeadland: An area of land that has wateron three sides
  18. 18. Erosion and Deposition by wavesHeadland: An area of land that has wateron three sidesSandbar: Sand that has been deposited inwater
  19. 19. How are shorelines changed
  20. 20. How are shorelines changedFlood: When water collects in an area thatis normally dry
  21. 21. How are shorelines changedFlood: When water collects in an area thatis normally dryFLoodplain: A place that is easily flooded
  22. 22. Waves
  23. 23. WavesBarrier Islands: When large sandbars areformed over hundreds of kilometers
  24. 24. How can shorelines be protected
  25. 25. How can shorelines be protectedDams: Control the speed of the flow ofwater in a river
  26. 26. How can shorelines be protectedDams: Control the speed of the flow ofwater in a riverLevees: Walls built to hold back water toprevent a flood
  27. 27. How can shorelines be protectedDams: Control the speed of the flow ofwater in a riverLevees: Walls built to hold back water toprevent a floodCanals/Channels: Carry away water
  28. 28. How can shorelines be protectedDams: Control the speed of the flow ofwater in a riverLevees: Walls built to hold back water toprevent a floodCanals/Channels: Carry away water
  29. 29. How can shorelines be protectedDams: Control the speed of the flow ofwater in a riverLevees: Walls built to hold back water toprevent a floodCanals/Channels: Carry away waterWeathering and Erosion

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