NCERT Solutions for Class 7 Science Chapter 1 The Ever-Evolving World of Science

As we are aware, science plays a crucial role in our daily lives. The chapter Ever-Evolving World of Science will make the students generate curiosity about what they observe around them in their daily lives. Science is not just about facts but also about questioning and exploring the world. This chapter focuses on the importance of asking questions, making observations and using logical thinking in science and innovation through engaging examples.

The chapter will also help students to think logically and understand how new scientific innovations have transformed human lives. The NCERT solutions for chapter 1 will offer a systematic approach for understanding these concepts by providing detailed solutions to all the exercise questions in the textbook. These NCERT solutions are aligned with the latest CBSE curriculum and designed by our subject matter expert which also serve as a valuable resource for students to enhance their exam performance. Let us learn NCERT in a better way!

This Story also Contains

1. NCERT Solutions for Class 7 Science Chapter 1: The Ever-Evolving World of Science
2. Practice Questions for Class 7 Science Chapter 1
3. Approach to Solve Questions of Class 7 Science Chapter 1: The Ever-Evolving World of Science
4. Important Topics In NCERT Solutions for Chapter 1: The Ever-Evolving World of Science
5. NCERT Solutions for Class 7 Science: Chapter-Wise
6. NCERT Books and NCERT Syllabus

NCERT Solutions for Class 7 Science Chapter 1: The Ever-Evolving World of Science

(Most Probable Questions)

Question 1. Fill in the blanks

(i) Science is not just about facts. It is also about ………. And ………….

(ii) Changes like fruits …………… are ………….. And cannot be reversed.

(iii) Animals need to eat, breathe, and circulate …………. to survive.

(iv) Plants prepare their food through ………….

(v) Studying………….. And ………… helped people understand day and night.

Answer:

(i) Questioning, Exploring

(ii) Ripening, Permanent

(iii) Nutrients

(iv) Photosynthesis

(v) Light, Shadows

Question 2. What is the purpose of asking questions and exploring in science?

(i) To find out facts

(ii) To learn from books

(iii) To confirm known things

(iv) To discover new things and think logically

Answer: The correct answer is option (iv), to discover new things and things logically

Question 3. Make suitable questions according to the given answers:

(i) Question:.................................................................

Answer: Because the cat’s teeth were crooked.

(ii) Question: ………………………………………………..

Answer: Just add some milk.

(iii) Question:....................................................................

Answer: Don’t panic, I have my towel.

Answer:

Question (i). Why do cats have difficulty eating?

Question (ii). What can I add to the banana shake?

Question (iii). Do you have your towel?

Question 4. What is the main goal of science?

Answer: The main goal of science is to understand the natural world through experiments, observation, and by asking questions. It explains how things work and solve problems. Science also helps improve technology, health, and the quality of life for people.

Question 5. How are light and shadows important in understanding the universe?

Answer: Light and shadows help us understand the presence, shape, and movement of objects. They allow scientists to study distant stars and planets. They also help us understand phenomena like day and night as well as the movement of celestial bodies such as the Earth, the moon, and the sun.

Question 6. What happens when materials like batteries run out?

Answer: When batteries run out, they cannot produce electrical energy because the chemical reactions stop inside them. The battery then becomes "dead" and needs to be recharged (if it's rechargeable) or replaced.

Practice Questions for Class 7 Science Chapter 1

Question 1. What is the difference between invention and discovery?
Answer:
A discovery is finding something that already exists (like gravity).
An invention is creating something new (like the telephone).

Question 2. How does science help in our daily life?
Answer:
Science helps us cook food, travel, use mobile phones, cure diseases, and make life easier with technology.

Question 3. Name two scientists and their contributions.
Answer:
Isaac Newton – Discovered gravity.
Alexander Fleming – Discovered penicillin (a medicine).

Question 4. Why is science called ever-evolving?
Answer:
Science is called ever-evolving because it keeps changing as we learn new things and make new inventions or discoveries.

Approach to Solve Questions of Class 7 Science Chapter 1: The Ever-Evolving World of Science

The following points will help you build a good approach to solve the question of this chapter effectively.

1. First step is to understand the key concepts
Try to focus on what science is, how it evolves with time and the role of observation, experimentation and evidence in scientific progress. This will help you a lot in answering the questions on your own.

2. Learn important terms
Memorize terms like hypothesis, invention, discovery, observation and innovation. Also try to understand their meanings through examples.

3. Try to connect with real life
Try linking scientific developments with real-world inventions (like light bulbs, vaccines or mobile phones) to better understand how science impacts life.

4. Use diagrams and timelines
For long answers, you can also draw timelines or simple diagrams for quick revisions.

5. Practice questions
Read the textbook thoroughly and attempt all in-text and end-of-chapter questions. You can practice application-based and reasoning questions and revise them regularly.

Important Topics In NCERT Solutions for Chapter 1: The Ever-Evolving World of Science

• Understanding the basics of science

• How to think logically?

• Making observations

• Questioning and Exploring the world

• How is human life transformed?

• What is happening and why?

• How is the world evolving?

NCERT Solutions for Class 7 Science: Chapter-Wise

The chapter-wise hyperlinks of the NCERT Class 7 Science are given below:

NCERT Books and NCERT Syllabus

The NCERT books and syllabus links for class 7 are given in the table below:

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