CBSE Class 3 EVS Chapter 20: Drop by Drop NCERT Solutions
CBSE Class 3 EVS Chapter 20, 'Drop by Drop', highlights the vital role of water and ways to conserve it. This chapter explores the sources of water, collection methods, and the significance of saving every drop. It introduces traditional water storage systems like 'tankas' and encourages practical water reuse ideas, such as using water from washing vegetables for plants. The NCERT Solutions for this chapter aim to foster awareness about water scarcity and promote responsible water usage habits early on. This makes it a valuable resource for students to grasp environmental responsibility and prepare for exams by understanding the importance of water conservation in our daily lives.
Quick info
| Board | CBSE |
|---|---|
| Class | Class 3 |
| Subject | Looking Around (EVS) |
| Session | 2026 |
| Language | English |
| Type | NCERT Solutions |
| Chapter | Chapter 20 |
Chapter summary
Chapter 20, 'Drop by Drop', for Class 3 EVS focuses on water conservation and management. The NCERT Solutions cover topics like fetching water from different sources, the importance of storing rainwater in 'tankas', and practical methods for reusing water. It emphasizes understanding water scarcity and encourages students to identify ways to save water in their daily routines, promoting environmental awareness.
Learning outcomes
- Understand the importance of water conservation.
- Identify different sources of water.
- Learn about water storage methods like 'tanka'.
- Explore practical ways to reuse water in daily life.
- Recognize the issue of water scarcity.
- Develop habits for responsible water usage.
Topics covered
Paper topics
- Water sources
- Water scarcity
- Rainwater harvesting
- Water storage (Tanka)
- Water conservation
- Water reuse
- Daily water usage habits
- Environmental awareness
Important topics
- Water conservation methods
- Rainwater harvesting and storage
- Importance of reusing water
- Understanding water scarcity
PDF preview
Read page by page below. PDF is streamed from the official NCERT website — no download button on this page.
Questions and Solutions
Question 1
Water collected in the tanka is mostly used for drinking. Why?
Who fetches water in Madho's house?
Is rainwater collected in your house as well? If yes, how?
In Madho's village, people fetch drinking water from a nearby pond. The water collected and stored in the tanka is primarily rainwater. This rainwater is considered pure and potable after undergoing a cleaning process, making it suitable for drinking, especially in regions where water is scarce.
In Madho's household, the responsibility of fetching water falls upon his mother and sister.
Regarding whether rainwater is collected in your house, this depends on your specific location and household practices. If it is, you might have systems like tanks or barrels to collect it. This collected water can then be used for various purposes, sometimes even for drinking after proper purification.
The question about collecting rainwater in your own house is designed to encourage personal observation and reflection. Your answer will depend on your individual experiences and the water collection methods used in your home.
Question 2
Here are some ways to save water:
- Turn off the tap completely while brushing your teeth.
- Take a bath using a bucket instead of a shower to reduce water consumption.
- Use a mop to clean the floor instead of washing it with a lot of water.
- The water used for mopping the floor can be reused for washing cars or other cleaning purposes.
- Water used for washing vegetables and fruits can be collected and used for watering plants in the garden.
These practices help conserve water, which is a precious resource.
Question 3
Yes, I have observed water flowing unnecessarily in various places. For example, sometimes taps are left running in school restrooms after use, or leaky pipes in the building cause water to drip continuously. In public areas, overflowing water tanks or sprinklers that run during rain also lead to wastage of water. It is important to report such instances or fix them to prevent water wastage.
Question 4
This question requires drawing lines to connect different activities where water can be reused sequentially. For instance, water used for washing vegetables can be used to water plants. Water used for bathing could potentially be used for flushing toilets or washing floors. The goal is to illustrate how water can serve multiple purposes before it is finally discarded, thereby conserving this vital resource. Students should use different coloured lines to show the flow of water reuse from one activity to another.
Common mistakes
- Not understanding the purpose of water storage systems like 'tanka'.
- Failing to identify practical ways to reuse water.
- Not recognizing the significance of saving water.
- Overlooking the importance of clean drinking water sources.
Revision tips
- Focus on understanding the concept of water scarcity and its impact.
- Memorize the different methods suggested for saving and reusing water.
- Review the purpose and function of water storage systems like 'tanka'.
- Think about personal experiences related to water collection and usage to connect with the chapter's themes.
Practice MCQs
Q1. What is a 'tanka' primarily used for in Madho's village?
Explanation: The 'tanka' collects rainwater, which is then purified and used for drinking, especially in areas where water is scarce.
Q2. Which family members in Madho's house are responsible for fetching water?
Explanation: In Madho's household, his mother and sister are the ones who fetch water.
Q3. What is a suggested way to save water while brushing teeth?
Explanation: Turning off the tap while brushing is an effective method to conserve water.
Q4. How can water used for washing vegetables be utilized?
Explanation: Water used for washing vegetables can be reused for watering plants, promoting water conservation.
Q5. Why is rainwater collected in a 'tanka' considered pure after cleaning?
Explanation: Rainwater collected in a 'tanka' is considered pure and potable after cleaning because it is a natural source and can be filtered.
Frequently asked questions
What is the main theme of CBSE Class 3 EVS Chapter 20?
The main theme of Chapter 20, 'Drop by Drop', is water conservation and the importance of saving water through various methods like collection, storage, and reuse.
What is a 'tanka' and why is it important?
A 'tanka' is a traditional underground tank used for collecting and storing rainwater. It is important in areas with water scarcity as it provides a source of clean drinking water.
How can students reuse water according to the NCERT Solutions?
Students can reuse water by using water from washing vegetables to water plants, or water used for mopping floors to wash cars, among other practical suggestions.
Why is it important to save water?
Saving water is important because water is a precious and often scarce resource. Conserving it ensures availability for drinking, sanitation, and other essential needs, and protects the environment.
Are the answers in the NCERT Solutions for Chapter 20 fixed?
For questions asking for personal observations or suggestions, the answers provided are sample answers. Students are encouraged to provide their own answers based on their experiences and observations.
Content reviewed by the NCERT Help team. Editorial Team and update policy
NCERT Solutions PDF PDF on NCERT Help. URL unchanged for search indexing.