4: Natural features of a river

Rivers have three courses:
the upper course, closest to the mountains and hills;
the lower course, the flattest area close to the sea;
the middle course, between the upper and lower courses.

Use the information from the video to answer these questions.
1) Where does a river start?

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2) List three observations from the video that tell you what the river channel was like near the source.

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3) How does the river channel change as the river moves down from the upper course into the middle course?

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4) What is the river like in the lower course?

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5) Using the table below, decide the most likely course for each river feature - you may need to look in books to find some of the answers.

waterfall                estuary                stream            meander                       

mouth                    source          oxbow lake           tributary

floodplain             mountains            valley              gorge               delta