THE RIVER What is a river A river
- Slides: 20
THE RIVER
What is a river? A river is a natural course of freshwater RIVER
What is the source of a river? The source of a river is the place where the river begins. SOURCE
Where does a river begin? A river begins in the mountains from a glacier or from an underground spring that emerges from the rocks. MOUNTAIN
RAIN GLACIE R Where does the water of a river come from? The water of a river comes from: - a melting glacier - the rain GLACIER RAIN
What is a riverbed? And what is a riverbank? A riverbed is the place where the river flows. A riverbank is the land at the edge of a river RIVERBED RIVERBAN KS
What’s a stream? A stream is the water that emerges from the rocks. STREAM
What’s a torrent? A torrent is a large amount of water that moves quickly TORRENT
The stages of a river STRE AM TORREN T RIVER The stream is small The torrent is steep and fast The river is long and perennial STAGE
What’s a waterfall? Waterfall is a stream of water that falls from a hight place WATERFA LL
What’s a meander? In plains rivers flow slowly and often make meanders. A meander is the large bend of a river. MEANDER
What’s a confluence? A confluence is the place where two rivers flow together CONFLUENCE
What’s a tributary? A tributary is a river or a stream that flows into a larger river or into a lake. TRIBUTAR Y
TRIBUTAR Y EMISSARY What is a tributary? A tributary is also a river that flows into a lake What is an emissary? An emissary is a river that comes out of a lake TRIBUTAR Y EMISSARY
What’s the mouth of a river? The mouth of a river is where it flows into the sea. MOUTH
DELTA ESTUA RY What is there at the mouth? At the mouth there is an estuary (a wide mouth) or a river delta (an area where the river splits into different channels). ESTUARY DELTA
What’s a channel? A channel is the wide part of a river that provides a route for ships. Men often use channels to irrigate fields. CHANNEL
What’s a bridge? A bridge is a structure that allows people to cross over a river. BRIDGE
The work of a river EROSION TRANSPORT While it flows, a river may erode, carry or deposit materials, debris and sediments. DEPOSITIO N EROSION TRANSPORT DEPOSITION
Verbs for rivers TO BEGIN: the river begins in the mountains TO FLOW: the river flows through valleys TO CARRY: the river carries a lot of debris TO ERODE: the river erodes soil and rocks TO MOVE: the river moves materials TO DEPOSIT: the river deposits sediments
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