|
|
|
|
|
- Water is the basic need for living things. Hence, it is an important element on earth.
|
|
|
|
- There are multiple sources of water.
|
|
 |
|
|
|
|
|
|
- Water flows from the higher ground to the lower ground.
|
|
- For example, rain on the top of the hill causes the water to flow down to the valley, hills and the little stream.
|
|
Natural Direction of Water Flow |
Rain → Waterfall (On mountain or hills) → River (Lowland) → Sea
|
|
|
|
|
|
|
- The natural water cycle is a continuous cycle that supplies water to living things and cools down the earth.
|
|
 |
|
|
- Importance of natural water cycle
|
|
1. |
|
For drinking, bathing, cooking, cleaning and other daily activities.
|
|
|
|
2. |
|
Reduce the surrounding temperature
|
|
|
|
3. |
|
Farming and gardening
|
|
|
|
4. |
|
Supply water to the river and lake for human use
|
|
|
|
|
|