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How and why do river features change downstream?

How and why do river features change downstream?. Starter: When you think of rivers…what comes to mind?. Homework: DUE IN TUES 15th Find the definitions, draw a diagram and learn the definition of the following words for a spot test next week. Erosion Hydraulic action Corrasion

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How and why do river features change downstream?

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  1. How and why do river features change downstream? Starter: When you think of rivers…what comes to mind? • Homework: DUE IN TUES 15th • Find the definitions, draw a diagram and learn the definition of the following words for a spot test next week. • Erosion • Hydraulic action • Corrasion • Corrosion (solution) • Attrition • Weathering • Physical • Chemical • Biological • Soil Creep • Mass Movement

  2. Stages in the development of a River Valley

  3. The river cuts downward to form a ‘V’shaped valley. The river starts to meander

  4. What happens next?

  5. River uses its meanders to cut from side to side eating into the valley Floodplain starts to form 1 2

  6. What happens next?

  7. 1 2

  8. Floodplain River bluffs Alluvial deposits River cliff

  9. http://www.youtube.com/watch?v=sfEi8CoPVgc&safe=active

  10. 1.Copy the diagram of the drainage basin on page 66 into your books2. Add on the information from the next slide onto it3. draw the 3 different cross sections on the upper middle and lower course pg 654. Add on the information from page 66

  11. A DRAINAGE BASIN WORD BANK – use these key geographical words to fill in the gaps Source Mouth Confluence Wider Watershed Drainage Basin Flood Plain Tributaries

  12. June 2011

  13. How does a river change from source to mouth? True or False • The valley gets narrower • The gradient gets steeper • You find interlocking spurs in the upper course • The watershed is the highland that surrounds the watershed • Deltas are found at the river’s mouth • Wide flood plains are found in the upper course • A confluence is when 2 rivers meet • Tributaries are bends in rivers

  14. What are the main features of a river?

  15. http://www.bbc.co.uk/learningzone/clips/watersheds-and-drainage-basins/3238.htmlhttp://www.bbc.co.uk/learningzone/clips/watersheds-and-drainage-basins/3238.html

  16. How and why do river features change downstream? Afon Taff River Severn

  17. What is the water cycle? What role do rivers play?

  18. HELP Mr Latus, I’m stuck!!!!! I am the Pied Piper. Follow me you rats. I haven’t got a ranging pole. Why have I not got a ranging pole?! GCSE fieldwork

  19. What are the main features of a river?

  20. Stages in the development of a River Valley

  21. The river cuts downward to form a ‘V’shaped valley. The river starts to meander

  22. What happens next?

  23. River uses its meanders to cut from side to side eating into the valley Floodplain starts to form 1 2

  24. What happens next?

  25. 1 2

  26. Floodplain River bluffs Alluvial deposits River cliff

  27. What happens next?

  28. Homework: • Find the definitions, draw a diagram and learn the definition of the following words for a spot test next week. • Erosion • Hydraulic action • Corrasion • Corrosion (solution) • Attrition • Weathering • Physical • Chemical • Biological • Soil Creep • Mass Movement • Homework: • Find the definitions, draw a diagram and learn the definition of the following words for a spot test next week. • Erosion • Hydraulic action • Corrasion • Corrosion (solution) • Attrition • Weathering • Physical • Chemical • Biological • Soil Creep • Mass Movement

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