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WorksheetsBumper Rivers Revision Quizizz
Total questions: 79
Worksheet time: 40mins
What is the deep water called beneath a waterfall?
Plunge bath
Mermaids retreat
Plunge pool
Pool
Waterfalls - what is the gap called between the hard and soft rock created by erosion?
Deadman's drop
Hole
Erosional gap
Overhang
Which two erosional processes create waterfalls?
Solution
Abrasion
Hydraulic Action
Attrition
Name this waterfall
Low Force
Medium Force
High Force
Kelly's Waterfall
What landform is created on the inside bend (...) of a meander and why?
A slip off slope or river beach which is caused by erosion due to fast flowing water.
A slip off slope or river beach which is caused be deposition due to slow flowing water.
A deposit beach caused by deposition
An erosional beach caused by erosion
What landform can be found on the outside bend of a meander(*) and why?
A river cliff as the water flows slowly and deposits the load it is carrying.
A river cliff as the water flows quickly on the outside bend eroding the bank through attrition.
A river cliff
A river cliff as the water flows quickly on the outside bend eroding the bank through hydraulic Action.
Infiltration is...
water flowing down a road
water flowing onto a flood plain
water sinking into the soil
where a river meets the sea
Rocks and soil that do not allow water to soak into them are called...
permeable
impermeable
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
Which one of these will reduce the risk of flooding?
cutting down trees
building more roads
planting trees
building more houses
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
A "human" cause of flooding is...
impermeable rocks
building roads, houses and factories
heavy rain
steep valley sides
A "natural" cause of flooding is...
steep valley sides
building roads
building houses
urbanisation
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 is the name of this diagram?
hydrograph
ordnance survey
bar chart
flow chart
What does the rising limb show?
the amount of water at the start of the flood
the amount of water at the end of the flood
the rising amount of water entering the river
the highest amount of water in the flood
What is the part of the hydrograph called?
rising limb
peak discharge
falling limb
peak rainfall
What is this part of the hydrograph called?
rising limb
peak discharge
falling limb
peak rainfall
What is the lag time?
the time between rising limb and falling limb
the time between discharge and time
the time between the start and end of the flood
the time between peak rainfall and peak discharge
What is the label for the orange box?
lag time
peak discharge
falling limb
peak rainfall
urbanised catchment?
hydrograph A
hydrograph B
Which hydrograph, A or B, is more likely for a round drainage basin?
Which hydrograph, A or B, is more likely for a forested drainage basin?
Which hydrograph, A or B, is more likely for a drainage basin with impermeable rock like granite?
Which hydrograph, A or B, is more likely after a long period of light rainfall?
Which hydrograph, A or B, is more likely for a steep river basin?
What is flood management for?
To help rivers flooding
Protect certain areas from flooding
To protect habitats from flooding
To prevent rivers going near a town or cities
What is hard engineering?
Man-made ways to try and control flooding
Natural ways to try and control flooding
What is soft engineering
Man-made ways to try and control flooding
Natural ways to try and control flooding
Which is more expensive?
Hard engineering
Soft engineering
Which of these is a human cause of flooding?
Heavy rainfall
Natural Hazards
Impermeable rocks
Deforestation
What is "Afforestation"?
Building artificial flood barriers
Cutting down trees
Planting trees near the river channel
adding sad and shingle to the side of rivers
Which of the following is a negative impact of channel straightening
It can cause more flooding downstream
It is expensive
It is environmentally friendly
It looks good
What is an advantage of floodplain zoning?
Expensive buildings are further away so there is less economic impact
It can easily be done in all existing built-up areas
Planning is simple as a standard model is followed
What is the main purpose of a relief channel?
redirects excess water to areas which need more water
redirects excess water around settlements
reduces the need for flood walls
water is moved more quickly through a settlement
What is river restoration?
Returning a river it to its original / natural course
Restoring hard engineering strategies
Adding a new river channel
hard engineering a new river channel
Which strategy is being described: reverts any environmental and ecological damage introduced by hard engineering projects.
flood relief channel
Aforestation
River restoration
flood plain zoning
Which strategies are being described: They do not stop land from flooding
Flood warnings
Levees
afforestation
Flood plain zoning
Which strategy is being described: speeds up the water so higher volumes of water can pass through an area more quickly.
Dams
Embankments
River straightening
Flood relief channel
Dredging is ...
Going over existing soft engineering strategies and replacing them.
The act of removing silt and debris from the bottom of bodies of water.
Adding sediment to the banks of rivers to slow down the velocity and reduce flood risk
Which of the following does not have 'unattractive' as a disadvantage?
Dams and reservoirs
River straightening
River restoration
Embankments
Which strategy is being described: can hold more water and less likely to burst banks.
Artificial levees
Dams
Flood relief channel
River straightening
Which best describes a flood storage reservoir in the UK?
a storage area in the middle course of river to enhance water supply
a storage area in the upper course of river to enhance water supply and control flooding
a storage area in the upper course of river to control flooding
a storage area in the middle course to control flooding and enhance water supply
What is a long profile?
A line representing the river from its source to its mouth.
A line from one river bank to another
The point where a river starts
An area of land drained by a river and its tributaries.
What are the characteristics of the upper course of a river?
Wide, deep channel
Shallow, narrow channel
Widest, deepest channel
All of the above
Identify the characteristics of the middle course of a river.
Medium gradient, gently sloping valley sides with a wider, deeper channel.
Gentle gradient, very wide, almost flat valley, very wide and deep river channel.
Steep gradient, v-shaped valley, steep sides and narrow, shallow channel.
Where is vertical erosion the most dominant along the long profile of a river?
Upper course
Middle course
Lower course
Why is vertical erosion most dominant in the upper course of a river?
High turbulence causes the rough, angular particles transported by the river to be scraped along the riverbed, causing intense downwards erosion.
The discharge is highest here causing intense erosion.
The velocity of the water is highest here causing intense erosion.
When soluble particles are dissolved into the river it is called:
Hydraulic Action
Abrasion
Saltation
Solution
Which process involves large boulders and rocks being rolled along the river bed?
Saltation
Traction
Suspension
Solution
Which Process involves small pebbles and stones being bounced along the river bed?
Solution
Traction
Saltation
none of the above
Tiny particles such as silt are usually transported:
in solution
in suspension
by saltation
by traction
The load of the river is all the materials carried by the water
True
False
What is the edge of the river basin called?
waterside
waterway
watershed
water
________________ are streams that flow together to make a river.
source
tributaries
mouth
drainage basin
The area of land DRAINED by a river system is called the _____________
drainage basin
mouth
tributaries
source
What river landforms are found in the upper course?
Gorge
Meander
Delta
Interlocking spurs
What type of erosion is prominent in the middle course?
Vertical erosion
Saltation
Solution
Lateral erosion
The (a) means the fastest flow of the river
The fastest flow of the river occurs on the ____________ bend creating a _______________.
Inside
Outside
Slip-off slope
River cliff
_______________ occurs on the inside bend because the river loses its energy
deposition
transportation
erosion
Natural levees are....
Man-made structures to prevent flooding
A raised bank on the edge of a flood plain
A raised bank either side of the river due to deposition
Unlevel ground on a flood plain
Name this type of erosion - the power of the water forcing air and water into cracks in the river bed and eroding it.
(a)
What is abrasion?
Rocks rubbing away the river bed like sandpaper
Small rocks hitting into each other
Acidic water dissolving rocks
What is the name of the river that you studied from source to mouth?
(a)
Where is Boscastle?
north coast of Cornwall
south coast of Cornwall
North coast of Devon
south coast of Devon
The Boscastle flood of 2004 is an example of an extreme weather event. What does this mean? (tick all that apply)
weather that is extreme
weather at the extremes of the historical distribution
weather that is expected and prepared for
extreme weather events includes unexpected, unusual, severe, or unseasonal weather
Which three rivers meet in Boscastle?
Valency, Exe, Jordan
Jordan, Valency, Tamar
Valency, Paradise, Jordan
Paradise, Exe, Jordan
Boscastle is built a drainage basin made from which rock?
Shale
Granite
Slate
Limestone
Which key word is the odd one out?
Infiltration
Surface run-off
Afforestation
Precipitation
What significance does the number 150 have to the Boscastle case study?
150 people stranded
150 cars swept out to sea
150 helicopters rescuing those stranded
£150 million economic damage following the flood
What was the death toll during the Boscastle flood?
0
5
10
15
Identify the long-term response from the list below
Helicopters rescued people from trees and rooftops
The village shop was rebuilt
Buildings were searched
Cars which had been swept away were removed from the harbour
How much money was spent on managing Boscastle post flood by the Environment Agency?
£3.5bn
£4bn
£4.5bn
£5bn
What improvements did they make to the car park?
Made it permeable to reduce rate of surface runoff and made it raised
Put holes in the concrete
Completely removed the car park
Denied the existence of the car park
What was the purpose of the National Trust Visitor Centre after the flood?
To raise awareness
To look nice
It had no purpose at all
What visitor centre?
What was the total cost of there flood management scheme?
£30m
£20m
£10m
£9m
