Rivers Flashcards
(67 cards)
What is the source of a river
The beginning or start of a river
What is a course of a river
The route a river takes to the sea
What is a confluence
The point of which two rivers join together
What is a tributary
A smaller river that flows into a large river
What is a mouth of a river
Where a river comes to an end usually entering the sea
What is a drainage basin
The land that is drained by a river
What is watershed
The area of high ground which separates two drainage basins
What is an estuary
The part of a river that is tidal
Name the three stages of the river
Youthful, mature and old stage
Name three things about the youthful stage of the river
Its steep gradient, fast flowing and has a low volume of water
Name three things about the mature stage of the river
Its gradient is gently sloping, its slower than the youthful stage and has more water than the ,,
Name three things about the old stage
Its levelling off, slow moving and has the largest amount of water
Name three rivers in Ireland
The Shannon, the liffey and the blackwater
Why are rivers important
Because they are a great source of clean water
Where does river erosion mostly occur
In the youthful stage of the river
Name the four processes of erosion
Solution, attrition, abrasion, hydraulic action
Where does river transportation mostly occur
In the middle stage of the river
Name the four different types of river transportation
Suspension, solution, bouncing, rolling
Where does the river deposition happen
In the old age stage of the river
When does river deposition happen
When the river loses its energy
Name two types of things that are in the suspension of the river
Sand and silt float in the suspension
What happens in the solution transportation
Some material is dissolved and carried in the load
In river deposition what is crated by the sediment
New land is created
What makes a v shaped valley deep and narrow
Hydraulic action
