L3 features
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This document discusses the features and formation of rivers and waterfalls. It explains that rivers change along their course from upper to middle to lower sections. Waterfalls and gorges form through erosion as the waterfall erodes backwards due to gravity, hydraulic action, and overhang formation, eventually retreating upstream over multiple stages. Students are assigned to model waterfall formation using play-doh and label the processes, and find a labeled photo of an actual waterfall to submit for homework.
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L3 features
- 1. Features of a river
- 2. Long River Profile (p102) The changes of the river over its course. Upper, middle and lower sections.
- 3. 1. Land forms of erosion; Waterfall and Gorges
- 4. Waterfall video here Turn to p 105
- 5. Waterfall & Gorge formation 1) Original river / waterfall
- 6. Waterfall & Gorge formation 2) Waterfall starts to erode
- 7. Waterfall & Gorge formation 3) Waterfall overhang
- 8. Waterfall & Gorge formation 4) Waterfall retreats
- 9. TASK: • Use the play-doh to make a waterfall! • Make sure that you label it clearly and EXPLAIN how it forms, (E.G. GRAVITY, OVERHANG, HYDRALIC ACTION) • At the end of the lesson I’ll take photos of them to see which ones are best!
- 11. Homework • Find a photo of a waterfall with a gorge and then label the different stages of its formation before STICKING IT INTO YOUR EXERCISE BOOKS!
- 12. Bingo X