Water

Water

There are three essential elements on earth, namely soil, water and air. These three elements are very important for life on earth.

9.1

Water

Water is the basic need for living things. Hence, it is an important element on earth.

Sources of Water

There are multiple sources of water.

Water flow

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

Natural Water Cycle

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

Water

There are three essential elements on earth, namely soil, water and air. These three elements are very important for life on earth.

9.1

Water

Water is the basic need for living things. Hence, it is an important element on earth.

Sources of Water

There are multiple sources of water.

Water flow

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

Natural Water Cycle

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