- Tell learners that a clean water supply is very important and ask them why they think we need clean water.
Possible answers: to drink; for cooking
- Explain that clean water is important because –
- Our bodies are made up of a lot of water.
- Our bodies produce waste which makes us lose water, for example, we perspire a lot on a hot day.
- We need to replenish the water in our body by drinking clean water.
- Plants and animals need clean water to grow and be healthy. Plants and animals provide us with food.
- We need clean water in our seas, lakes and rivers because these are very important ecosystems.
- Water is also used for fun, for example, water sports or swimming.
- Show VIDEO CLIP 2: Access to fresh water (1:55 min.).
- Tell learners that we are lucky to still have good water sources in South Africa, but we need to take care of this precious resource. In many other countries, but also in parts of our own country, people have to walk very far to get water.
- Show VIDEO CLIP 3: How can I live if there is no clean water (2:30 min.).
This is a short story about a little girl living Ethiopia and what she needs to do every day to get water to her family. Ask learners:
- How many hours does Aleyka spend each day to get water?
- Is this water clean (i.e. free from contaminates)?
- When does Aleyka do her school homework?
- What have you learnt from this video?
Answers can include: Not to waste water; not to take clean water for granted; to be very careful about how we use our water.
- There are various ways in which we can clean water. In nature, wetlands help to purify water by acting as filtration systems. Often there are unclean bodies of water that are not suitable for use by humans and animals. We can use chemicals to help clean this water.
- People can also carry special purification tablets with them when they are in the wilderness. They can use these to purify the water before drinking it.
- Tell learners that we are going to carry out an activity to clean water. We are going to make an apparatus called a “still” which is a water purification device.