Why do you think aerial views such as these are helpful when scientists identify the parts of a stream system?



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Labeling the Parts of a Stream Vocabulary List
Stream: A naturally flowing body of water.

Drainage basin: All of the land drained by a river and its tributaries.

Head: The beginning of a stream where runoff has cut a channel.

Valley: A long, low area carved by a stream or glacier and bounded by higher areas on both sides. Valleys can range from narrow ones bounded by steep cliffs to wide ones bounded by broad, flat plains.

Canyon: A deep, steep-walled gorge carved in rock by the erosive action of a stream or glacier.

Tributary: A stream that flows into a larger stream (river) or a lake.

Channel: The course along which water moves.

Delta: A flat plain created by the deposition of sediment at the river's mouth. A delta can be arcuate, or bow shaped, like the Nile Delta. It can also be bird's foot, or triangular, like the Mississippi Delta.

Floodplain: A relatively flat area paralleling a section of the stream and comprising loose sediment, such as silt. The sediment is deposited when the stream periodically overflows its banks.

Mouth: The point at which water from a stream discharges into another body of water, such as a larger stream (river), lake or ocean.

Rill: A narrow channel carved by runoff.

Gully: A rill widened by flowing water.


Open the photo below to see if you identified the parts of your stream diagram correctly. Then, find an image of the Mississippi River Delta and create a digital digram of the parts.

photo.JPG

Now make a page called "stream system" and your user names. Link it to this page. On your new page, post your picture or video identifying the different parts of a stream. Then answer the question above (about using aerial views) and the following: "Why do you think your stream bed looked different than the picture above?"



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Group 1
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