Topic 4: Water World

What do these pictures have in common?

How can a healthy hydrological cycle be threatened by humans?

Lesson objectives:• To understand how humans can threaten water quality

Task

• In your booklet on page 10 classify all the pollutants from the diagram you have been given.

• Read the types of water pollution to the impact

Domestic Industrial Agricultural Transport Other

What impacts are human activities having on Mexico City?

Aquifer

Levels of water pollution

Why do you think some countries such as India and China do not have standards for water quality like Japan now does? (Thinking before the Tsunami!)