Rivers are one of the topics covered in KS2 geography. Children will look at the different features of rivers, for example deltas, banks or the source.
Rivers are natural streams of water. They are formed by the movement of water from high ground to lower ground and then usually to the sea. The place where a river begins is called its source. Rivers are constantly changing as they flow over lands and have many different features. They can change shape as they erode the ground at their banks. When rivers eventually meet the sea they may form 'D' shaped masses of channels called deltas.. Small rivers are also called streams, creeks and brooks.
For a lovely look at the beauty of many rivers, we highly recommend the Geoaffairs website, particularly Europe's 2nd longest river.