Rivers Flashcards
The water cycle What do we call the water drops that fall as rain or hail or sleet or snow.
Precipitation
What is the water cycle? What happens when the air rises higher where it is cooler. Water vapour ???????? into tiny water droplets. These form clouds.
Condenses
What is the water cycle? The Sun warms oceans, lakes and seas, turning water into water vapour , the gas. What is this called?
Evaporation
How rainfall reaches the river If the ground is hard or very wet, rain water just runs along it. What is this called?
Surface runoff
How rainfall reaches the river What is it called when the rain soaks into the ground?
Infiltration
How rainfall reaches the river Some of the rain that soaks into the ground flows sideways through the soil. what is this called?
Throughflow
How rainfall reaches the river What water is always on the move? It flows along slowly.
Groundwater
Parts of the river What do we call the startIng point of the river. It could be a springa lake, or a marshy area where a lot of rain gathers
Source
Parts of the river What do we call the point where two rivers join?
Confluence
Parts of the river What do we call the smaller rivers that joining the main one
Tributaries
Parts of a river What do we call the imaginary line that separates one drainage basin from the next?
Watershed
Parts of the river What do you call the land that may get flooded when a river overflows
Flood plain
Parts of the river What happens to the river as you go from the source to the mouth?
It gets wider
Parts of the river The river is fed by the rain that falls in area that we call the??????
Drainage basin
Parts of the river What is the highest point of the river?
Source