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What landforms and features are associated with the middle course of a river?

1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. What landforms and features are associated with the middle course of a river?. LO: To investigate how meanders and ox-bow lakes form. What is the point where two rivers meet called?. Confluence Mouth Source.

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What landforms and features are associated with the middle course of a river?

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  1. 1 2 3 4 5 6 7 8 9 10 11 12

  2. What landforms and features are associated with the middle course of a river? • LO: To investigate how meanders and ox-bow lakes form.

  3. What is the point where two rivers meet called? • Confluence • Mouth • Source

  4. What is the name of the smaller river that joins the main river? • Flood plain • Tributary • Mouth

  5. What is the starting point of the river called? • Source • Drainage basin • Channel

  6. What is the geographical name for rain, hail, sleet and snow? • Percolation • Infiltration • Precipitation

  7. What do we call water turning into a gas • Precipitation • Evaporation • Condensation

  8. What is a bend in the river called? • Meander • Watershed • Channel

  9. What is the name for the area of land which is drained by a river? • Mouth • Drainage Basin • Confluence

  10. What is the end of the river called? • Source • Tributary • Mouth

  11. What do we call the circumference of a drainage basin? • Watershed • Edge • Groundwater

  12. Learning Outcomes • Students MUST be able to describe what a meander is and identify the processes which have produced it. • Students SHOULD be able to explain the formation. • Students COULD suggest how meanders turn into Ox Bow lakes. http://www.bbc.co.uk/learningzone/clips/rivers-meanders/403.html

  13. What is a meander? • Meanders are large bends in the course of a river. • They begin to appear as the valley floor becomes flatter and lateral erosion become more significant than vertical erosion.

  14. A meander along the River Tees

  15. A meander

  16. Most likely to…Inside or outside? Lateral erosion (corrasion) takes place. Water flows slowest. Has less friction and therefore more energy. Water flows fastest. Undercutting takes place and forms a river cliff. Deposition takes place. Sand and shingle builds up to form a slip off slope. River is deeper. River is shallower. Bank will eventually collapse.

  17. How do Ox-bow lakes form? The abandoned part of a meander after a river has straightened its course by eroding through the neck of the meander.

  18. What does this look like as a cross section?

  19. Outside Inside Most likely to… Inside or outside? J: Lateral erosion (corrasion) takes place. A: Water flows slowest. I: Water flows fastest. B: Has less friction and therefore more energy. H: Undercutting takes place and forms a river cliff. C: Deposition takes place. G: Sand and shingle builds up to form a slip off slope. D: River is deeper. E: River is shallower. F: Bank will eventually collapse.

  20. The future?

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