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NCERT Class 6 Science Chapter 1 The Wonderful World of Science
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The Wonderful World of Science
Chapter: 1
| INTEXT QUESTIONS |
1. What is Science?
Ans: Science is a way of thinking, observing and doing things to understand the world we live in and to uncover the secrets of the universe.
2. What will we explore with the help of this book?
Ans: With the help of this book, we will create an endless list of questions about the objects around us. We will attempt to understand how various things are made, how they function, and how they are interconnected. This book will inspire us to enhance our curiosity and make new discoveries.
3. How can we try to find answers to our questions on our own?
Ans: We can endeavor to find answers to our questions by adhering to scientific methods. First, we should observe what interests us or what we do not understand. Next, we should formulate a hypothesis about it and then verify that hypothesis through experiments and further observations. Finally, by analyzing the results, we can determine whether we have found the answer to our question.
4. After all, to be a wise person, you must be a “whys” person!
Ans: Asking questions is essential for becoming intelligent because it enhances our curiosity and understanding, driving us to explore new knowledge. By inquiring, we gain a better grasp of the world around us, a process that makes us more knowledgeable and wise. Great leaders constantly ask questions and are well aware that they do not have all the answers. Intelligent questions stimulate, provoke, inform, and inspire.
5. What are the major steps of the scientific method?
Ans: The major steps of the scientific method are: asking questions, experimenting, theorizing, analyzing data, and drawing conclusions.
6. What is the difference between science and technology?
Ans: The main difference between science and technology is in their objectives. Science is the process of understanding nature that involves both theory building and empirical testing through data collection and experiments, while technology is the application of scientific understanding to produce useful devices and solve both technological and societal problems.
7. Why do stars shine in the sky?
Ans: Stars shine because of their high temperature and energy. They generate energy from the process of nuclear fusion within them, which emits light. Variations in air density are usually related to temperature fluctuations, and it is only when light rays pass through layers of different densities that stars twinkle.
8. Why is science not just confined to the classroom?
Ans: Science is all around us, it provides solutions to many problems of daily life and inspires new discoveries. Today, man has succeeded in reaching the moon and other planets and traveling in space only because of science. Life without science could not even be imagined.
9. Why is the Earth considered a planet conducive to life?
Ans: Conditions conducive to life are probably found only on Earth. The Earth is neither too hot nor too cold. Water, atmosphere, essential gases and appropriate temperature are present on Earth, which provide the necessary conditions for life.
10. How can the scientific method be applied in daily life?
Ans: The scientific method is not only used by scientists, but it can also be used to solve everyday problems. We can analyze our problems using the scientific method, such as finding a problem with a faulty electronic device, finding solutions to health problems, or testing a new idea.
11. Choose the correct option-
(a) What is the main objective of science?
(i) Discovering new things only.
(ii) Understanding natural phenomena.
(iii) Remembering facts.
(iv) Doing experiments only.
Ans: (ii) Understanding natural phenomena.
(b) Which action is not a part of the scientific method?
(i) Testing the findings.
(ii) Trying to understand natural phenomena.
(iii) Assuming an assumption without testing it.
(iv) Drawing conclusions on the basis of observation.
Ans: (iii) Assuming an assumption without testing it.
12. Fill in the blanks-
(i) Science is a systematic way of understanding _____________.
Ans: Natural phenomena.
(ii) The first step in the scientific method is to identify _____________.
Ans: Problem.
(iii) _____________ is the only planet where life is possible.
Ans: Earth.
(iv) The basis of any scientific discovery is _____________.
Ans: Curiosity.
(v) Stars generate their energy through the process of _____________.
Ans: Nuclear fusion.
(vi) The factors necessary for life on Earth include _____________ and _____________.
Ans: Water and atmosphere.
