Destructive Forces

1. Destructive Forces How is our Earth’s surface worn down?

2. What is a destructive force?

3. Weathering Weathering is a _______________ force. There are two types of weathering: _________ & _________.

4. Weathering Weathering is a destructive force. There are two types of weathering: _________ & _________.

5. Weathering Weathering is a destructive force. There are two types of weathering: mechanical & chemical.

6. Weathering ______________weathering is the slow breaking apart or wearing away of rock into smaller pieces. These smaller pieces are known as ______________. Weathering can be caused by ___________, ________ & __________.

7. Weathering Mechanical weathering is the slow breaking apart or wearing away of rock into smaller pieces. These smaller pieces are known as _________________. Weathering can be caused by __________, _________ & _________.

8. Weathering Mechanical weathering is the slow breaking apart or wearing away of rock into smaller pieces. These smaller pieces are known as sediment. Weathering can be caused by __________, _________ & _________.

9. Weathering Mechanical weathering is the slow breaking apart or wearing away of rock into smaller pieces. These smaller pieces are known as sediment. Weathering can be caused by water, ice & wind.

10. Weathering ______________weathering when weathered rock in changed into other materials. _________ is the main factor that causes chemical weathering. Water can dissolve some ________ in the air and soil to form a _______ water that can dissolve some _______, like limestone. This is how _________ are formed.

11. Weathering Chemical weathering when weathered rock in changed into other materials. _________ is the main factor that causes chemical weathering. Water can dissolve some ________ in the air and soil to form a _______ water that can dissolve some _______, like limestone. This is how _________ are formed.

12. Weathering Chemical weathering when weathered rock in changed into other materials. Water is the main factor that causes chemical weathering. Water can dissolve some ________ in the air and soil to form a _______ water that can dissolve some _______, like limestone. This is how _________ are formed.

13. Weathering Chemical weathering when weathered rock in changed into other materials. Water is the main factor that causes chemical weathering. Water can dissolve some chemicals in the air and soil to form a weakacid water that can dissolve some rocks, like limestone. This is how _________ are formed.

14. Weathering Chemical weathering when weathered rock in changed into other materials. Water is the main factor that causes chemical weathering. Water can dissolve some chemicals in the air and soil to form a weakacid water that can dissolve some rocks, like limestone. This is how caves are formed.

16. Erosion _____ is the carrying away of sediment by moving wind, water, or ice.

17. Erosion Erosion is the carrying away of sediment by moving wind, water, or ice.

19. Water In rivers and streams, rocks _____ _____ by _____ rub against other rocks. Over time, _____ _____ break off the rocks. The rocks are ________ and become ________ and _______.

20. Water In rivers and streams, rocks movedalong by water rub against other rocks. Over time, __________ break off the rocks. The rocks are ________ and become ________ and _______.

21. Water In rivers and streams, rocks movedalong by water rub against other rocks. Over time, sharpedges break off the rocks. The rocks are ________ and become ________ and _______.

22. Water In rivers and streams, rocks movedalong by water rub against other rocks. Over time, sharpedgesbreak off the rocks. The rocks are worndown and become smoother and smaller.

23. Water __________ erosion can change shorelines. Waves can ____ ____ large amounts of ____ and ____.

24. Water Ocean-waveerosion can change shorelines. Waves can ________ large amounts of ____ and ____.

25. Water Ocean-waveerosion can change shorelines. Waves can washaway large amounts of sand and rock.

26. Water Erosion

27. Georgia's Providence Canyon

29. Wind Wind can make loose bits of sand and soil ____ or ______ across land.

30. Wind Wind can make loose bits of sand and soil rollor bounce across land.

31. Wind Wind can also cause particles of sand and soil to ___ _______ rocks and _____ ____ small pieces of rock. In this way, _____________ are carved by the wind over time.

32. Wind Wind can also cause particles of sand and soil to rubagainst rocks and carryaway small pieces of rock. In this way, _____________ are carved by the wind over time.

33. Wind Wind can also cause particles of sand and soil to rubagainst rocks and carryaway small pieces of rock. In this way, newrockshapes are carved by the wind over time.

35. A ______ is a large mass of slow-moving ice that flows down a slope.

36. A glacier is a large mass of slow-moving ice that flows down a slope.

37. As a glacier moves, it collects ___________ at its ____. A glacier can ________mountainsides that form ________ valley and canyons.

38. As a glacier moves, it collects rocks and soil at its base. A glacier can _______ mountainsides that form ________ valley and canyons.

39. As a glacier moves, it collects rocks and soil at its base. Glaciers can carve out mountainsides that form U-shapedvalley and canyons.