Skip to content
Auralith
Log inGet started

Year 8 · Geography · Rivers and coasts · Lesson 4

Flooding and management

River and coastal flooding: physical and human causes, flood hydrographs, lag time, and hard and soft engineering for rivers and coasts, with UK examples.

Whiteboard video lesson: Flooding and management

18-minute video lesson

Teaching, worked examples and 20 practice questions solved step by step.

Watch free for a month

What your child will learn

  • Explain physical and human causes of flooding
  • Read a flood hydrograph
  • Explain lag time
  • Compare hard and soft engineering
  • Evaluate flood management

The method

  1. Name the method.
  2. How it works.
  3. Pros and cons.
  4. Judge.

Key words: flood, run-off, impermeable, hydrograph, lag time, hard engineering, soft engineering.

Worked examples

The first three practice questions from the lesson, with every step.

Question 1

Name one physical cause of flooding.

  1. Step 1: Weather

Answer: Heavy rainfall

Question 2

Name one human cause of flooding.

  1. Step 1: Building or cutting

Answer: Urbanisation (or deforestation)

Question 3

What does impermeable mean?

  1. Step 1: Water can't pass through

Answer: Not letting water soak through