What features of a river can you see on this map? Name 4.
Waterfall, confluecne, ox-bow lake, tributary, v-shaped valley, meander, floodplainย
Oops!
Check
Okay!
Check
20
What is corrasion?
Rocks in the river being thrown against the river bed and banks, knocking more pieces off.
Oops!
Check
Okay!
Check
20
What is traction?
Rocks in the river being rolled along the river bed.
Oops!
Check
Okay!
Check
25
What happens on the outside bed of a meander? 3 things.
The water is moving faster, so erosion occurs, creating a river cliff.
Oops!
Check
Okay!
Check
20
What is hydraulic action?
The sheer force of the water eroding the side of the river bed and banks
Oops!
Check
Okay!
Check
heart
Other team wins 10 points!
Oops!
gift
Win 15 points!
Okay!
gift
Win 25 points!
Okay!
banana
Go to last place!
Oops!
20
Explain the formation of an ox-bow lake.
Usually during a flood, the neck of the meander breaks through due to continued erosion and leaves the meander cut off.
Oops!
Check
Okay!
Check
20
What is attrition?
Rocks in the river bashing into each other, becoming more rounded.
Oops!
Check
Okay!
Check
20
What is a confluence?
The exact point a tributary meets a larger river.
Oops!
Check
Okay!
Check
15
What erosional feature is created at the bottom of a waterfall?
Plunge Pool
Oops!
Check
Okay!
Check
lifesaver
Give 5 points!
Oops!
seesaw
Swap points!
Okay!
rocket
Go to first place!
Okay!
thief
Give points!
5
10
15
20
25
15
Name the 3 courses of a river.
Upper, middle and lower.
Oops!
Check
Okay!
Check
25
Explain the formation of a levee.
Everytime a river floods, sediment is dropped, the larger material first and the smaller is dropped furthest away. Over time the larger material builds up.
Oops!
Check
Okay!
Check
25
What happens on the inside bend of the meander? 3 things.
The water is moving slowly, so deposition occurs, creating a river beach.