Opinion as to what to classify it as and in general its size. For example - what would be classed as a stream in USA might be bigger that the biggest 'river' in Another Country.
Rills are small channels formed by flowing water on a slope, gullies are larger and deeper channels typically caused by erosion, and streams are larger bodies of moving water that can support aquatic life and flow towards a larger body of water like a river or ocean.
stream piracy
river
A stream or river called that flows into a larger stream or river is called a tributary.
In some parts of the world, a creek is a tidal inlet. In other parts of the world a creek or brook is a small stream. This is contrasted with the word 'river', which is a large watercourse.
The stream is a tributary of the river.
A stream changes by joining larger bodies of water as it makes it way to the ocean. It begins at the headwaters and then into a tributary river, a river delta, and then to the ocean.
A stream or brook can get bigger and become a river.
Rivers and streams are two different things, A river is a large body of water and a stream is a small body of water. This means that riverbeds and streambeds are indeed two different things.
Ohio River
A small stream in a river is called a current.
The middle part of a river may be called mid-stream, mid-river or mature river.