Flooding: Revision

Flooding: Revision

What do you remember so far?

What is flooding?

Open Ended

What is the definition of flooding? (In your own words)

What is the definition of flooding?

Flooding is when an area of land that is usually dry is covered with water after there is heavy rain or another cause of flooding happens

Types of Flooding

The most common type of flooding is when rivers or streams
overflow their banks. These floods are called riverine floods.
Heavy rain, a broken dam, rapid ice melt in the mountains, or
even a beaver dam in a vulnerable spot can overwhelm a river
and send it spreading over nearby land. The land surrounding a river is called a flood plain.

Coastal flooding, also called estuarine flooding, happens when

a large storm or tsunami causes the sea to rush inland.

Reorder

How does flooding happen? Put the boxes in order of when they happen:

• It is raining heavily

• The discharge of the river increases

• The river starts to fill up

• The water level in the river is so high that water moves into the floodplain

• The river can't hold anymore water and the surrounding area floods

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5

What are the causes of flooding?

Labeling

Where do the different causes of flooding happen?

Drag labels to their correct position on the image

Urbanisation

Deforestation

Very Dry Soil

Impermeable Rocks

Steep Slopes

Very Wet Soil

Can you remember 6 different causes of flooding?

1. Steep slopes
2. Deforestation
3. Very Wet Soil
4. Impermeable Rocks
5. Very Dry Soil
6. Urbanisation

Explain to the person next to you HOW these are
cause of flooding

Match

Match the Following

• Urbanisation

• Steep Slopes

• Deforestation

• Very Dry Soil

• Impermeable Rocks

The concrete in cities is impermeable

The water moves too fast to soak up

Trees absorb a lot of the water

A crust is formed so water can't soak

They can't absorb water

• The concrete in cities is impermeable

• The water moves too fast to soak up

• Trees absorb a lot of the water

• A crust is formed so water can't soak

• They can't absorb water

Make sure the lesson 1 and lesson 2 boxes are completed

Causes of flooding

Choose a flooding event that has happened in the world.

Write at least 250 words on the next slide

1. How the flooding happened

2.

What the effects of the flooding were

3.

What was done to try and repair the damage and stop it
happening again.

Open Ended

Choose a flooding event that has happened in the world. Write at least 250 words on: How the flooding happened; What the effects of the flooding were; What did they do to try to repair the damage and stop it happening again?