MCQ | NCERT Class 9 Science | Chapter 1: The Wonderful World of Science
Q1. What is science?
(a) A collection of stories
(b) A way of thinking, observing and doing things to understand the world
(c) A method of memorising facts
(d) A study of only living organisms
Answer: (b) A way of thinking, observing and doing things to understand the world
Q2. What is one of the most important qualities needed for learning science?
(a) Curiosity
(b) Silence
(c) Speed
(d) Memorisation
Answer: (a) Curiosity
Q3. What does curiosity encourage us to do?
(a) Stop asking questions
(b) Observe and ask questions
(c) Memorise everything
(d) Avoid experiments
Answer: (b) Observe and ask questions
Q4. Which of the following can be studied using science?
(a) Only objects in laboratories
(b) Only plants and animals
(c) Things and phenomena around us
(d) Only objects in space
Answer: (c) Things and phenomena around us
Q5. Science helps us understand the world through
(a) Guessing without testing
(b) Observation and questioning
(c) Memorising without understanding
(d) Avoiding experiments
Answer: (b) Observation and questioning
Q6. Which of the following is an example of scientific curiosity?
(a) Wondering why stars shine
(b) Refusing to ask questions
(c) Copying an answer without understanding
(d) Avoiding observation
Answer: (a) Wondering why stars shine
Q7. According to the chapter, science can be found
(a) Only in laboratories
(b) Only in schools
(c) Everywhere around us
(d) Only in books
Answer: (c) Everywhere around us
Q8. Which of the following is an example of science in everyday life?
(a) Understanding how things work
(b) Avoiding questions
(c) Memorising a poem
(d) Drawing without observing
Answer: (a) Understanding how things work
Q9. What is the first step when we notice something interesting or puzzling?
(a) Ignore it
(b) Observe it carefully
(c) Immediately give an answer
(d) Stop thinking about it
Answer: (b) Observe it carefully
Q10. After observing something interesting, what can we do next?
(a) Ask a question
(b) Forget about it
(c) Copy someone else’s answer
(d) Stop investigating
Answer: (a) Ask a question
Q11. In the scientific method, what is a possible answer to a question called?
(a) Observation
(b) Guess
(c) Measurement
(d) Conclusion
Answer: (b) Guess
Q12. What should we do to test a possible explanation?
(a) Conduct an experiment or make further observations
(b) Memorise it
(c) Ignore the question
(d) Change the question
Answer: (a) Conduct an experiment or make further observations
Q13. What do we do after testing our guess?
(a) Analyse the results
(b) Ignore the results
(c) Start memorising the textbook
(d) Stop observing
Answer: (a) Analyse the results
Q14. What may happen if a guess does not agree with the results?
(a) We may make a new guess and test it again
(b) We must accept the guess
(c) We should stop asking questions
(d) We should ignore the experiment
Answer: (a) We may make a new guess and test it again
Q15. Science is compared in the chapter to a
(a) Closed box
(b) Giant and unending jigsaw puzzle
(c) Simple game
(d) Finished story
Answer: (b) Giant and unending jigsaw puzzle
Q16. Why is science compared to an unending jigsaw puzzle?
(a) Because science has no observations
(b) Because every discovery can add knowledge and lead to new questions
(c) Because scientists do not conduct experiments
(d) Because scientific knowledge never changes
Answer: (b) Because every discovery can add knowledge and lead to new questions
Q17. Which statement about scientific knowledge is correct?
(a) It can never change
(b) New discoveries can change our understanding
(c) It is based only on guesses
(d) It does not require evidence
Answer: (b) New discoveries can change our understanding
Q18. Who can use scientific thinking in everyday life?
(a) Only professional scientists
(b) Only teachers
(c) Anyone who observes, asks questions and tests ideas
(d) Only laboratory workers
Answer: (c) Anyone who observes, asks questions and tests ideas
Q19. Which of the following is an example of scientific thinking in daily life?
(a) Finding out why a pen has stopped writing
(b) Ignoring a problem
(c) Guessing an answer without checking
(d) Avoiding observation
Answer: (a) Finding out why a pen has stopped writing
Q20. Why is teamwork important in science?
(a) Scientists can share ideas and work together
(b) Scientists never need other people
(c) Experiments cannot be performed individually
(d) Teamwork replaces observation
Answer: (a) Scientists can share ideas and work together
Q21. Scientists around the world often
(a) Work only by themselves
(b) Work together in teams
(c) Avoid sharing information
(d) Avoid asking questions
Answer: (b) Work together in teams
Q22. Which of the following is a scientific question?
(a) Why does it rain?
(b) Which colour do I like most?
(c) Which story is funniest?
(d) Which game is most enjoyable?
Answer: (a) Why does it rain?
Q23. Science helps us explore
(a) Only Earth
(b) Only living organisms
(c) The world around us and the universe
(d) Only objects in our homes
Answer: (c) The world around us and the universe
Q24. What attitude should a student develop while learning science?
(a) Curiosity and willingness to ask questions
(b) Fear of experiments
(c) Avoidance of questions
(d) Dependence only on memorisation
Answer: (a) Curiosity and willingness to ask questions
Q25. What is the main message of the chapter “The Wonderful World of Science”?
(a) Science is only about memorising facts
(b) Science is a continuous journey of curiosity, observation, questioning and discovery
(c) Science can be studied only in laboratories
(d) Science has answers to every question already
Answer: (b) Science is a continuous journey of curiosity, observation, questioning and discovery
