Sources of Water and Their Uses for Class 3 EVS
The major part of Earth is covered with water in the form of rivers, lakes, seas, and oceans. The following concept will introduce the learners to different sources of water and the uses of water.
After reading the concept, students will be able to:
- Name the sources of water and differentiate between surface water and groundwater.
- Categorize natural sources of water into surface water sources and groundwater sources.
- Suggest the methods for judicious use of water.
- Understand the importance of water purification before consumption.
- Know that only purified water can be considered potable water. It can be used for cooking and drinking.
Each concept is explained to class 3 students using descriptions, illustrations, and concept maps. After you go through a concept, assess your learning by solving the two printable worksheets given at the end of the page.
Download the worksheets and check your answers with the worksheet solutions for the concept of Sources of Water and Their uses provided in PDF format.
Another name for water is LIFE because no living being on this planet can survive without water.
- We need water in so many activities of our life.
- We observe water in different forms—like the one we drink, like ice cubes when water is stored in the freezer and as steam when we boil water.
- All living organisms depend on water for their survival.
Natural Sources of Water:
- The main source of water in our surroundings is the rivers. They supply water for various purposes. Rivers flow down from the mountains.
- We also get water from lakes, ponds, streams, etc. These are the natural sources of water.
- Borewells, dams and canals are man-made sources of water.
- During the rainy season, the rainwater seeps through the soil and is stored in the underground water table. We can use this water by digging wells.
- Major part of our earth is covered by water, but they are either glaciers or oceans and seawater. We cannot use such water for our daily activities.
How Do We Get Potable Water?
- Do we drink water directly from the river or pond? No! We usually get the water supply through closed pipelines.
- Water from rivers, dams, lakes, etc., goes to purification plants.
- From the purification plants, water is distributed to the houses through the municipality.
- Once it reaches our house, we store it in tanks and containers, like bottles, pots, buckets, etc.
- Water is required for many activities, like drinking, cooking, bathing, washing clothes, washing utensils, cleaning cars, gardening, farming, industries, etc.
- All these activities require different quantities of water.
- We use less water for drinking and cooking than washing clothes and utensils.
- More water is used while bathing under a shower than using a bucket.
- Compared to house cleaning activities, more water is utilised during car washing, farming and industries.
Amount Of Water In Different Containers:
Water takes the shape of the container in which it is poured without any change in its amount.
- Let us take a glass full of water and pour that water into a jug. It appears that the amount of water in the jug is less than the amount of water in the glass.
- However, this is not true. Both the containers have the same amount of water, but as the jug is bigger than the glass, we think the jug has lesser water.
New Words:
Borewell:A type of well that is dug to extract underground water.
Glacier:A river of ice found in the high mountains formed by the accumulation of snow.
Water purification plant:A place where water is purified by different methods to make it drinkable and usable.
Did You Know?
- Like our planet Earth, the human body is mainly made up of water.
- A person can survive without food for nearly a month, but he can survive for just a week without water.
- Pure water has no smell and no taste.
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