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WorksheetsRivers
Total questions: 68
Worksheet time: 41mins
At the mouth of the river this feature can be found
tributaries
flood plains
delta
confluence
A small stream flowing into the river
confluence
river
rivelet
tributary
A natural stream of water is called a
spring
river
lake
ocean
True or False. A river flows from low elevation to high elevation?
True
False
What does the word velocity mean?
(a)
What is the main source of river water
springs
tributary
ground water
rainfall
Give one function of a river
(a)
State one way how a river may begin
(a)
This river located in Africa is considered to be the longest river
The Mississippi
The Amazon
The Nile
The Ganges
The area where a river begins is called its _______________.
tributary
mouth
confluence
source
When soluble particles are dissolved in a river it is called?
Hydraulic action
Saltation
Solution
Suspension
True or false. Traction refers to the transportation process where the load is bounced along the riverbed
True
False
A river's (a) is the starting point of the river
_____________ are streams that flow together to form a river
source
confluence
tributaries
drainage basin
In which stage of the river would you find v-shaped valleys?
Middle course
Lower course
Upper course
V-shaped valleys are formed due to....
Lateral erosion
Vertical erosion
Solution
Horisontal erosion
What landform can you see in the picture?
Delta
Waterfall
Oxbow lake
Floodplain
Look at the picture and name the feature
waterfall
meander
rapids
pothole
This picture represents which course of the river?
Upper course
Middle course
Lower course
When a river meets the sea, we call it the mouth. When the river carries a great load of material it will deposit material and form_____________
Islands
Estuaries
Deltas
Floodplains
What type of rock does not allow water to pass through it?
pervious
permeable
impermeable
porous
Which works of a river requires it to have energy?
erosion
deposition
transportation
Under which circumstances would be a river have high energy?
large volume of water
flow in flat area
steep gradient
large load in the channel
The cracks found along the banks of a river are due to erosion. They are formed by turbulent waters forming jet streams which break up the rocks. This sheer force of the water breaking down the rocks is known as (a)
The process where the load bounces or jumps along the river's channel is known as ___
traction load
suspension
solution
saltation
Which two processes result in the carrying of bedload?
traction
suspension
solution
saltation
What process in the water cycle is responsible for the formation of rivers?
infiltration
runoff
transpiration
throughflow
Attrition is when ..
large rocks smash against each other.
small rocks rub against the river bed.
sand and other fine particles float.
water flows into the rocks.
What is the name given to material deposited in a flood plain?
Aluminium
Boulders
Alluvium
Gorge
When a delta forms, the river breaks up into a number of smaller rivers called ......................
Distributaries
Confluences
Tributaries
Waterfalls
V shaped valleys are formed by what direction of erosion?
Lateral
Vertical
Surface runoff is...
water flowing over the land surface.
water flowing through the soil.
water flowing through rock.
Steep slopes cause rain to quickly run down to the river reducing the chance of it infiltrating and causing...
more flooding
less flooding
Very wet soil means rain...
is unable to soak into the ground causing more flooding
will sink into the ground quickly causing less flooding
Trees and plants acting as an umbrella to stop rain hitting the ground is called...
infiltration
interception
runoff
impermeable
Permeable rocks and soils...
do not allow water to pass through them
allow water to pass through them
Runoff is...
water falling from the atmosphere as rain, hail, sleet or snow
rainwater soaking into the ground
evaporation of water from leaves
rainwater moving over the ground surface
What are flash floods?
When rain falls and lightning strikes
Flooding that has lights in it
Floods that require light to happen
This happens when sudden rain from storms cause the water in rivers and streams to flow faster and higher causing damage outside of the rivers and streams
What pairs of factors are human causes of flooding?
Heavy rainfall & urbanisation
Steep slopes & deforestation
Urbanisation & deforestation
Snow melt & urbanisation
What pairs of factors are physical causes of flooding?
Urbanisation & snow melt
Deforestation & steep slopes
Snow melt & steep slopes
Heavy rainfall & deforestation
What is the cause of flooding in this image?
Steep slopes
Compacted/dry soil
Urbanisation
Snow melt
How would building a new town contribute to flooding?
There would be less infiltration, therefore decreasing surface runoff.
There would be more infiltration, therefore increasing surface runoff.
There would be less infiltration, therefore increasing surface runoff.
There would be more infiltration, therefore decreasing surface runoff.
How would removing trees increase the risk of flooding?
There would be less interception by tree leaves, increasing the amount of water reaching the river
There would be more interception by tree leaves, decreasing the amount of water reaching the river
There would be less interception by tree leaves, decreasing the amount of water reaching the river
There would be more interception by tree leaves, increasing the amount of water reaching the river
Which two soft engineering strategies are used to prevent river flooding?
Channel straightening
Afforestation
Floodplain zoning
Dredging
A gorge is formed by...
a waterfall retreating
a meander moving
a levee forming
a flood occurring
What do we call water entering the ground?
Precipitation
Infiltration
Surface run-off
Evaporation
What do we call any type of water falling from the sky?
Precipitation
Infiltration
Surface run-off
Evaporation
How is relief shown on a map?
Lines of latitude
Grid references
Lines of best fit
Contour lines
Why do waterfalls retreat?
Hard rock is undercut and collapses
Plunge pools become too deep
The river slowly erodes the hard rock
Soft rock is very resistant to erosion
Why does lateral erosion dominate the middle course?
Steep gradient
Shallow gradient
High discharge
Low discharge
Why does vertical erosion dominate the upper course?
Steep gradient
Shallow gradient
High discharge
Low discharge
What features are found in the lower course?
Waterfalls
Meanders
Flood plains and levees
Estuaries
Why are natural levees formed? (2)
Flooding transports sediment over the banks
Heavier sediment is harder to transport
In order to help protect areas from flooding
They are a form of hard engineering
What does deposition form on the inner bank of a meander?
A slip-off slope
A river cliff
A plunge pool
A gorge
In which direction do meanders move?
Towards the outer bank
Towards the inner bank
