1, different water quantity:

Small river: large amount of water and high runoff.

Streams: The water quantity is small, and it is easy to dry up in dry season.

2. Different widths:

Small river: A waterway with a width of more than five meters is called a river.

Stream: A stream whose water width is less than five meters is called a stream.

3. Different boundaries:

River: There are upstream, midstream and downstream. The upper reaches of the river follow the source of the river, mostly in the upper reaches of the river in the valley. The flow of this river is characterized by large drop, fast velocity and strong erosion. The river slope in the middle reaches is relatively slow, the riverbed is relatively stable, and the riverbed erosion and deposition are close to balance; The downstream gradient is small, the water surface is wide, the sediment deposition is remarkable, and there are many shallow pools and sandbars in the river.

Streams: There are no obvious boundaries, usually in the upper reaches of rivers and valleys, and turbulent riverbeds are also common.

4. Different functions:

Rivers: The functions are relatively diverse, which can supply people with daily water and can also be used for agricultural irrigation. Rivers that reach a certain water level can also be used for water transportation.

Xiaoxi: Limited by the small amount of water, its functions are relatively simple, and it can only provide some functions in life, such as washing vegetables, washing clothes and daily use.