Year 3

What happens when a river floods?

In this lesson, we will be learning about the physical causes of flooding as well as the human factors which can increase the risk of flooding. We will also be learning about dams by studying the Aswan High Dam in Egypt.

Year 3

What happens when a river floods?

In this lesson, we will be learning about the physical causes of flooding as well as the human factors which can increase the risk of flooding. We will also be learning about dams by studying the Aswan High Dam in Egypt.

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Lesson details

Key learning points

  1. What a flood is
  2. Why rivers flood
  3. How a flood can bring positive and negative impact

Licence

This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.

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7 Questions

Q1.
Where is the Volga River found?
in Brazil
in Egypt
Correct answer: in Russia
in South America
Q2.
Why does a lot of agriculture (farming) take place along the Volga River?
Correct answer: because the soil is fertile
because the soil is infertile
Q3.
Over ____ of Russia’s agriculture takes place along the Volga River.
20%
25%
30%
Correct answer: 50%
Q4.
Apart from farming, why else is the Volga River important to people?
it is important because it looks beautiful
it is important for producing wheat and barley
Correct answer: it is important for the fishing industry
Q5.
What is the Volga River famous for?
Correct answer: caviar
salmon
shrimps
Q6.
What is transported along the Amazon River?
Correct answer: goods such as produce, large goods such as logs, tourists visiting the river
large goods such as logs and tourists
produce such as fruit and vegetables
Q7.
What is caviar?
fish bones
Correct answer: fish eggs
fish eyes

9 Questions

Q1.
What is flooding?
The continuous recycling of water on Earth.
When a river erodes the banks (sides).
Correct answer: When a river’s water spills over its banks (sides) and spreads out over the surrounding area.
Q2.
Floods are only caused due to physical causes, such as heavy rainfall. True or false?
Correct answer: False
True
Q3.
Which of these are examples of human factors which can increase the risk of flooding?
deforestation and steep slopes
snowmelt and urbanisation
steep slopes and heavy rainfall
Correct answer: urbanisation and deforestation
Q4.
Why can steep slopes cause flooding?
because steep slopes slow up how quickly the water can get to the river
Correct answer: because steep slopes tend to reduce the amount of infiltration of water into the ground (water entering the ground)
Q5.
Why does urbanisation (the building and extension of towns and cities) increase the risk of flooding?
because towns and cities are busier
Correct answer: towns and cities have impermeable surfaces that don't allow the water to go through it
towns and cities have permeable surfaces that do allow the water to go through it
Q6.
Which of these are examples of physical factors which can cause flooding?
deforestation, steep slopes, heavy or prolonged rainfall
snowmelt, steep slopes, deforestation
Correct answer: snowmelt, steep slopes, heavy or prolonged rainfall
urbanisation, snowmelt and deforestation
Q7.
What is a dam?
A dam allows the free flow of water.
Correct answer: A dam is a barrier that stops or restricts the flow of water.
Q8.
Where is the Aswan High Dam located?
in Brazil
Correct answer: in Egypt
in Israel
in Jordan
in Russia
Q9.
What has built up behind the Aswan High Dam?
Correct answer: a reservoir (lake)
a river
a sea
an ocean