Download PDF of class 7 science chapter 1 the ever-evolving world of science solutions and get easy access answers for all textbook questions. These NCERT Solutions for Class 7 are available in a simple format, making it easier for students to study anytime and anywhere.
Search Colleges, Exams, Schools & more
Login
NCERT Solutions for Class 7 Science Chapter 1 The Ever-Evolving World of Science
Do you know that science is all around you? Whether it is the food we eat, the air we breathe, or the gadgets we use every day, science plays a crucial role in our daily lives. The chapter Ever-Evolving World of Science aims to develop curiosity among the students about the world around them and to help them analyze the everyday observations. This chapter focuses on the importance of asking questions, making observations and using logical thinking through engaging examples. Let us explore the world of science through this chapter!
This Story also Contains
- Download PDF of NCERT Solutions for Class 7 Science Chapter 1
- NCERT Solutions for Class 7 Science Chapter 1 (Most Probable Questions)
- NCERT Solutions for Class 7 Science Chapter 1 (Activity 1.1)
- Practice Questions for Class 7 Science Chapter 1
- Approach to Solve Questions of Class 7 Science Chapter 1
- Topics Covered In NCERT Solutions for Chapter 1
- How Chapter 1 Shapes Scientific Thinking
- What You Will Learn from Class 7 Science Chapter 1 The Ever-Evolving World of Science
- NCERT Solutions for Class 7 Science Chapter-Wise
- NCERT Books and NCERT Syllabus
Science is not just about facts but also about questioning and exploring the world. The NCERT solutions for class 7 science will offer a systematic approach for understanding these concepts through a series of solved questions. The concepts like the basics of science, human life and importance of observation are well portrayed in the ever-evolving world of science ncert solutions. The practice questions for class 7 science chapter 1 are also included in the article to improve your critical thinking. These NCERT solutions are aligned with the latest CBSE curriculum and will serve as a valuable resource for students to enhance their exam performance. We have also mentioned a few points to help you build a good approach for solving the questions.
NCERT Solutions for Class 7 Science Chapter 1 (Most Probable Questions)
These solutions are designed to help students focus on important topics likely to appear in exams. These class 7 science chapter 1 the ever-evolving world of science question answer strengthen conceptual clarity and confidence during preparation.
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) Science is not just about facts. It is also about questioning and exploring.
(ii) Changes like fruits ripening are permanent and cannot be reversed.
(iii) Animals need to eat, breathe, and circulate nutrients to survive.
(iv) Plants prepare their food through photosynthesis.
(v) Studying light and shadows helped people understand day and night.
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).
In science, asking questions helps us inquire and understand how things work. It encourages us to think clearly and find new ideas or explanations.
Question 3. 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 solves problems. Science also helps improve technology, health, and the quality of life for people.
Question 4. 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 5. 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.
Confused between CGPA and Percentage?
Get your results instantly with our calculator!
💡 Conversion Formula used is: Percentage = CGPA × 9.5
NCERT Solutions for Class 7 Science Chapter 1 (Activity 1.1)
The solutions to the activity covered in this chapter are given below. These NCERT Solution for Class 7 Science Chapter 1 The Ever-Evolving World of Science provide step by step guidance to understand the experiment and its outcome. These solutions of NCERT make it easier for students to relate practical activities with theoretical concepts.
Question 1. 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.
(iii) Question:....................................................................
Answer: 42.
Answer:
Question (i). Why do cats have difficulty in eating?
Question (ii). What can I add to the banana shake?
Question (iii). Do you have your towel?
Question (iv). A gardener plants 6 rows of flowers, with 7 flowers in each row. How many flowers did the gardener plant in total?
Practice Questions for Class 7 Science Chapter 1
The practice questions of the ever-evolving world of science ncert solutions are provided for your assistance. These solutions are important to understand the basics of science.
Question 1. Why is science described as an ever-evolving field?
(1) Scientific laws never change
(2) New discoveries replace old ideas when better evidence is found
(3) Scientists always agree with each other
(4) Science depends only on imagination
Answer:
Science changes with new observations, experiments, and evidence. Old theories may be modified or replaced, making science dynamic and ever-evolving.
Hence, the correct answer is option (2).
Question 2. A scientific explanation is accepted only when it is:
(1) Popular among people
(2) Written in textbooks
(3) Based on experiments and evidence
(4) Supported by opinions
Answer:
Scientific explanations must be testable and supported by evidence, not opinions or popularity.
Hence, the correct answer is option (3).
Question 3. Which situation best shows the use of the scientific method?
(1) Guessing answers in an exam
(2) Believing information without proof
(3) Testing different fertilizers to see which helps plants grow better
(4) Following instructions without questioning
Answer:
The scientific method involves observation, experimentation, and conclusion, as shown by testing fertilizers under controlled conditions.
Hence, the correct answer is option (3).
Question 4. Why are scientific models used even though they may not be completely accurate?
(1) They are easier to draw
(2) They help explain complex ideas and can be improved later
(3) They replace experiments
(4) They never change
Answer:
Scientific models help us understand complex concepts and are updated as new data becomes available.
Hence, the correct answer is option (2).
Question 5. What is the difference between invention and discovery?
Answer:
A discovery is finding something that already exists. An invention is creating something new (like the telephone).
Question 6. How does science help in our daily lives?
Answer:
Science helps us cook food, travel, use mobile phones, cure diseases, and make life easier with technology.
Question 7. Name two scientists and their contributions.
Answer:
The names of the two scientists are Isaac Newton and Alexander Fleming.
1. Isaac Newton
2. Alexander Fleming
Question 8. 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 following points will help you build a good approach to solve the class 7 science chapter 1 the ever-evolving world of science question answer effectively.
1.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.
2. Memorise terms like invention, discovery, observation and innovation. Also try to understand their meanings with the help of examples.
3. Try linking scientific developments with real-world inventions like light bulbs, vaccines or mobile phones to better understand how science impacts life.
4. For long answers, you can also draw simple diagrams for quick revisions.
5. Read the textbook and try to attempt all in text and end of chapter the ever-evolving world of science class 7 question answers. You can practice application and reasoning questions and revise them regularly.
Topics Covered In NCERT Solutions for Chapter 1
We have listed the important topics discussed in class 7 science the ever-evolving world of science question answer below. Read the NCERT book to understand these topics well
-
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?
How Chapter 1 Shapes Scientific Thinking
These class 7 science chapter 1 the ever-evolving world of science solutions gives clear understanding of scientific concepts, examples and role of science in everyday life.
- This chapter explains the importance of science in daily life and human processes.
- The role of observation and experiments are well explained in the ever-evolving world of science ncert solutions.
- Student will get to know about how scientific theories and inventions shape the world.
- Chapter 1 helps students to developing curiosity and critical thinking to explore new ideas.
What You Will Learn from Class 7 Science Chapter 1 The Ever-Evolving World of Science
In this chapter, students will learn about how science has developed and continues to shape the modern world. Some things that students will learn by using the class 7 science the ever-evolving world of science question answer are given below:
- This chapter helps to learn what science is , its branches, and how it helps us understand the world around us.
- Here students will learn about how ancient scientists and inventors helped the development of modern science.
- Scientific Innovations such as electricity, medicines, and communication tools are discussed in the ever-evolving world of science class 7 question answer
- Here students will understand how science and technology work together to make life easier.
NCERT Solutions for Class 7 Science Chapter-Wise
Along with NCERT Solution for Class 7 Science Chapter 1 The Ever-Evolving World of Science students can refer to the links given below for other chapters of NCERT science class 7:
NCERT Books and NCERT Syllabus
The links for the NCERT books and NCERT syllabus for class 7 are given in the table below. Use them to get a clear idea of the syllabus.
Frequently Asked Questions (FAQs)
Q: Why is experimentation so important in Class 7 science chapter 1?
A:
Experiments are important because they help us find out if an idea or guess (called a hypothesis) is right or wrong. A good experiment lets us change one varaible at a time to see how it affects the result.
Q: What is NCERT solutions Class 7 Science Chapter 1?
A:
These Solutions are detailed answers to all textbook questions, designed to help students understand key concepts easily. They provide step by step explanations, making learning simple and effective for exam preparation.
Q: According to the class 7 science chapter 1, what makes a great scientist?
A:
A great scientist is someone who is curious, observant and always ready to ask questions. They think logically, do careful experiments and are open to changing their ideas when new evidence is found.
Q: Why observation is important?
A:
Observation is the first step in learning about the world around us. By carefully watching and noticing details, we can discover how things work and ask the right questions.
Q: What was an early method of measuring time?
A:
In older times, people measured time by watching the shadow of the sun using a sundial. They also used water clocks and sand timers to count time.
Q: How is curiosity important in learning science?
A:
Curiosity is important in learning science because it encourages us to ask questions and explore how things work. It leads to discovery and makes learning more exciting and meaningful.
Q: Does science ever make mistakes or change its mind?
A:
Yes. Science is not about being perfectly right all the time. It is about getting closer to the truth based on the best available evidence. When better or stronger evidence is found that goes against an old idea, scientists are ready to change their thinking and improve what they know.
Q: How does the chapter explain the scientific method?
A:
The chapter outlines the scientific method as a systematic approach to inquiry. It involves making observations, forming a hypothesis, conducting experiments, collecting data, and drawing conclusions.
Q: How are scientific theories different from scientific laws?
A:
Scientific theories are broad explanations for a range of phenomena that are supported by extensive evidence, while scientific laws describe observational phenomena and are generally accepted as being true. For example, Newton's law of motion describes how objects behave under certain conditions, while the theory of evolution explains how species change over time. Both are crucial to science but serve different purposes.
Q: What role does observation play in scientific discovery?
A:
Observation is a fundamental aspect of the scientific method. It allows scientists to gather data and evidence about the world around them. This data is crucial for forming hypotheses, conducting experiments, and ultimately drawing conclusions that lead to new understanding and advancements in science.
Articles
Upcoming School Exams
Popular Questions
A block of mass 0.50 kg is moving with a speed of 2.00 ms-1 on a smooth surface. It strikes another mass of 1.00 kg and then they move together as a single body. The energy loss during the collision is
| Option 1)
|
Option 2)
|
| Option 3)
|
Option 4)
|
An athlete in the olympic games covers a distance of 100 m in 10 s. His kinetic energy can be estimated to be in the range
| Option 1)
|
Option 2)
|
| Option 3)
|
Option 4)
|
A particle is projected at 600 to the horizontal with a kinetic energy . The kinetic energy at the highest point
| Option 1)
|
Option 2)
|
| Option 3)
|
Option 4)
|
In the reaction,
| Option 1)
|
Option 2)
|
| Option 3)
|
Option 4)
|
How many moles of magnesium phosphate, will contain 0.25 mole of oxygen atoms?
| Option 1)
0.02 |
Option 2)
3.125 × 10-2 |
| Option 3)
1.25 × 10-2 |
Option 4)
2.5 × 10-2 |
Colleges After 12th
Courses After 12th
Applications for Admissions are open.
Enrol for Aakash Re-NEET 2026 Victory Batch at Rs. 99 only. Batch start 16th May.
University of Liverpool, Bengaluru Campus
ApplyStudy at a world-renowned UK university in India | Admissions open for UG & PG programs.
Victoria University, Delhi NCR
ApplyApply for UG & PG programmes from Victoria University, Delhi NCR Campus
Illinois Tech Mumbai
ApplyAdmissions open for UG & PG programs at Illinois Tech Mumbai
University of Aberdeen Mumbai
ApplyApply for UG & PG courses at University of Aberdeen, Mumbai Campus
University of York, Mumbai
ApplyUG & PG Admissions open for CS/AI/Business/Economics & other programmes.