2. Erosion  The materials produced by any type of weathering rarely stay in the same place.

3. Erosion  The materials produced by any type of weathering rarely stay in the same place.  Erosion is the movement of weathered material.

4. Erosion  The materials produced by any type of weathering rarely stay in the same place.  Erosion is the movement of weathered material.  Water, both as a liquid and as ice, along with wind and gravity constantly move weathered materials to new places.

5. Erosion by Water  Water causes much of the erosion on Earth.  Creeks, streams, rivers, and other bodies of water that flow through channels erode the land over which they move.  Erosion by moving water depends on several factors.  The two most important factors are the speed and amount of moving water.

6. Erosion by Water  Water causes much of the erosion on Earth.  Creeks, streams, rivers, and other bodies of water that flow through channels erode the land over which they move.  Erosion by moving water depends on several factors.  The two most important factors are the speed and amount of moving water.

7. Erosion by Water  Water causes much of the erosion on Earth.  Creeks, streams, rivers, and other bodies of water that flow through channels erode the land over which they move.  Erosion by moving water depends on several factors.  The two most important factors are the speed and amount of moving water.

8. Erosion by Water  Water causes much of the erosion on Earth.  Creeks, streams, rivers, and other bodies of water that flow through channels erode the land over which they move.  Erosion by moving water depends on several factors.  The two most important factors are the speed and amount of moving water.

9. Erosion by Water  Erosion by water is not always slow.

10. Erosion by Water  Erosion by water is not always slow.  A rapid release of water, can erode large amounts of rock and sediment.

11. Erosion by Water  Erosion by water is not always slow.  A rapid release of water, can erode large amounts of rock and sediment.  When Mount St. Helens erupted in 1980, it spewed large amounts of volcanic material out onto the mountain.

12. Erosion by Water  Erosion by water is not always slow.  A rapid release of water, can erode large amounts of rock and sediment.  When Mount St. Helens erupted in 1980, it spewed large amounts of volcanic material out onto the mountain.  Steams flowing over this new sediment rapidly carved a canyon 100 feet deep in less than a year.

13. Erosion by Water  In a field near Walla Walla, Washington, another canyon more than 100 feet deep was carved through sedimentary rock in just a few days when water from an irrigation canal broke through.

14. Erosion by Water  Besides speed and amount of moving water, the shape of a stream or river also affects how it erodes the land.

15. Erosion by Water  Besides speed and amount of moving water, the shape of a stream or river also affects how it erodes the land.  The fastest water moves along the outside of a river bend.

16. Erosion by Water  Besides speed and amount of moving water, the shape of a stream or river also affects how it erodes the land.  The fastest water moves along the outside of a river bend.  Banks will be cut away and steeper in the outer bends, and the channel will be deeper.

17. Erosion by Water  Besides speed and amount of moving water, the shape of a stream or river also affects how it erodes the land.  The fastest water moves along the outside of a river bend.  Banks will be cut away and steeper in the outer bends, and the channel will be deeper.  The slower water moves along the inside of the bend.

18. Erosion by Water  Waves and currents are other forms of moving water that erode the land.

19. Erosion by Water  Waves and currents are other forms of moving water that erode the land.  As waves break against the shore, they pick up and carry weathered materials back into the lake or ocean.

20. Erosion by Water  Waves and currents are other forms of moving water that erode the land.  As waves break against the shore, they pick up and carry weathered materials back into the lake or ocean.  Current cause erosion as they move within a body of water.

21. Erosion by Water  Waves and currents are other forms of moving water that erode the land.  As waves break against the shore, they pick up and carry weathered materials back into the lake or ocean.  Current cause erosion as they move within a body of water.  Along the Pacific Coast of Washington, Oregon, and Northern California, the waves onto the shore, moving of rock and sand.

22. Erosion by Water  Waves and currents are other forms of moving water that erode the land.  As waves break against the shore, they pick up and carry weathered materials back into the lake or ocean.  Current cause erosion as they move within a body of water.  Along the Pacific Coast of Washington, Oregon, and Northern California, the waves onto the shore, moving of rock and sand.  The same is true in many other coastal regions.

23. Scripture Spotlight Can you find examples of weathering and erosion in Job 14:18-19?

24. Scripture Spotlight Can you find examples of weathering and erosion in Job 14:18-19? Job 14: 18-19 describes a mountain falling and crumbling, a rock being moved from its place, water wearing away stones, and torrents washing away the soil of the Earth

25. Erosion by Glaciers  Glaciers are frozen masses of water that change the land beneath them.

26. Erosion by Glaciers  Glaciers are frozen masses of water that change the land beneath them.  Alpine glaciers form high in mountain valleys.

27. Erosion by Glaciers  Glaciers are frozen masses of water that change the land beneath them.  Alpine glaciers form high in mountain valleys.  The sides or bottoms of these glaciers melt and refreeze.

28. Erosion by Glaciers  Glaciers are frozen masses of water that change the land beneath them.  Alpine glaciers form high in mountain valleys.  The sides or bottoms of these glaciers melt and refreeze.  As this happens, they pluck rocks from the valleys and carry them to other places.

29. Erosion by Glaciers  Continental glaciers form over large areas of continents.

30. Erosion by Glaciers  Continental glaciers form over large areas of continents.  Currently, continental glaciers form in Earth’s polar regions.

31. Erosion by Glaciers  Continental glaciers form over large areas of continents.  Currently, continental glaciers form in Earth’s polar regions.  These types of glaciers cause erosion as they move under their own weight.

32. Erosion by Glaciers  Continental glaciers form over large areas of continents.  Currently, continental glaciers form in Earth’s polar regions.  These types of glaciers cause erosion as they move under their own weight.  Rocks embedded in these glaciers scrape the land over which they move to produce deep grooves in the underlying surface.

33. Erosion by Wind  Wind, or moving air, is another agent of erosion.

34. Erosion by Wind  Wind, or moving air, is another agent of erosion.  Like moving water, erosion by wind depends on the speed of the wind.

35. Erosion by Wind  Wind, or moving air, is another agent of erosion.  Like moving water, erosion by wind depends on the speed of the wind.  Wind erosion also depends on the time that the wind blows.

36. Erosion by Wind  A gentle wind, for example, will carry small particles only short distances.

37. Erosion by Wind  A gentle wind, for example, will carry small particles only short distances.  A stronger wind that lasts for hours, however, will move large volumes of the same particles over the surface and can create dust storms.

38. Erosion by Wind  A gentle wind, for example, will carry small particles only short distances.  A stronger wind that lasts for hours, however, will move large volumes of the same particles over the surface and can create dust storms.  Erosion by the wind is most effective in arid regions.

39. Scripture Spotlight In 1 Kings 19:11, what was responsible for breaking the rocks in pieces?

40. Scripture Spotlight In 1 Kings 19:11, what was responsible for breaking the rocks in pieces? In the story of Elijah experiencing the wind in 1 Kings 19:11, earthquake, fire, and then the still small voice of God, it was the strong wind that broke the rock in pieces when the Lord walked by.

41. Erosion by Gravity  Gravity also produces erosion.

42. Erosion by Gravity  Gravity also produces erosion.  Several factors affect erosion by gravity:

43. Erosion by Gravity  Gravity also produces erosion.  Several factors affect erosion by gravity:  Landscape slope  Water flow and saturation of soil  Type of rock or sediment