What is a long, low area carved by a stream or glacier with higher areas on both sides? They can also range from narrow ones with steep cliffs on both sides to wide ones with broad, flat plains.

What is a deep, steep-walled gorge carved in rock by a stream or glacier?

What is all of the land drained by a river and its tributaries called?

What is a stream that flows into a larger stream or river called?

What is the course along which water moves called?

What is a flat plain created by the sediment dropped at the river's mouth called? It can also be bow shaped or like a bird's foot (triangular) shaped.

What is a flat area next to the stream and made up of loose sediment, such as silt called? The sediment is deposited when the stream overflows its banks.

What is the point at which water from a river or stream empties into another body of water, such as a larger stream, lake, or ocean called?