Rivers By Elouise P4.

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Presentation transcript:

Rivers By Elouise P4

The First Course A source is a place where a river begins. Its usually from a mountain or a spring.

How? Water comes down from mountains because the snow melts. Sometimes a stream is formed by a spring the ground absorbs the water and it gets to impermeable rock and comes back up.

The River is Formed All the streams that come down from the mountain or a spring can form a river.

The Middle Course When all the streams come together and the water gets very fast and you can sometimes find a rapid or a waterfall. A rapid is fast moving water and a waterfall is fast moving water that goes down a slope.

Erosion When rocks sweep on the bottom and sides of the river and makes it deeper and wider which is called erosion. We did an experiment to show erosion.

I did a movie to show the end course. End of River Course I did a movie to show the end course.

Meanders The river starts to swirl and twirl and this is called meanders some times the meanders split and the splits are called oxbow lakes.

The Sea Every river leads to the sea like the Nile (a river in Egypt).The Nile is the biggest river in the world without it Egypt would be nothing. The delta is where the river leads to the sea, the delta is called delta because of its shape.