Students can practice the best Class 7 Science MCQ and The Ever Evolving World of Science Class 7 Science Curiosity Chapter 1 MCQ Online Test with Answers for exam preparation.
Class 7 Science Chapter 1 The Ever Evolving World of Science MCQ
The Ever Evolving World of Science MCQ Class 7
MCQ On The Ever Evolving World of Science Class 7
Question 1.
Why is science referred to as a “process” rather than just a “collection of facts”?
(a) Because it only involves doing experiments
(b) Because facts are not reliable
(c) Because it involves questioning, observing, and understanding
(d) Because science keeps changing every year
Answer:
(c) Because it involves questioning, observing, and understanding
Question 2.
What does the butterfly and paper plane symbol in the book signify?
(a) Animals used in experiments
(b) Tools for studying air pressure
(c) Symbols of freedom, creativity, and exploration in learning
(d) Toys mentioned in history of science
Answer:
(c) Symbols of freedom, creativity, and exploration in learning
Question 3.
Howdoesthechapterexplaintheconnection between science and responsibility?
(a) Scientists are responsible for space missions
(b) Science teaches us to memorize important facts
(c) Scientific discoveries come with a duty to use them wisely
(d) Science helps us to win competitions
Answer:
(c) Scientific discoveries come with a duty to use them wisely
Question 4.
Which activity is most likely to develop scientific thinking in students?
(a) Reading about Newton
(b) Memorizing the periodic table
(c) Observing plant growth and recording changes
(d) Watching a science fiction movie
Answer:
(c) Observing plant growth and recording changes
Question 5.
Why is light important in our understanding of the universe?
(a) It creates shadows for games
(b) Tell time only during the day
(c) It provides deep insights into physical phenomena and cosmic events
(d) It only helps plants grow
Answer:
(c) It provides deep insights into physical phenomena and cosmic events
Question 6.
What was one of the earliest tools used by humans to tell time?
(a) Alarm clocks
(b) Digital watches
(c) Shadow positions of the Sun
(d) Sand timers
Answer:
(c) Shadow positions of the Sun
Question 7.
According to the chapter, what makes a discovery meańingful?
(a) If it is published in a book
(b) If it is new and surprising
(c) If it is connected to real-world observations and curiosity
(d) If it wins an award
Answer:
(c) If it is connected to real-world observations and curiosity
Question 8.
Which of the following statements about water is most consistent with the scientific approach?
(a) Water is only important for drinking
(b) Water just evaporates and disappears
(c) Water follows a cycle driven by the Sun’s heat
(d) Water remains the same in all conditions
Answer:
(c) Water follows a cycle driven by the Sun’s heat
Question 9.
How are the movements of Earth and Moon connected to life on Earth?
(a) They affect only astronauts
(b) They have no real significance
(c) They cause day, night, and eclipses
(d) They change the color of plants
Answer:
(c) They cause day, night, and eclipses
Question 10.
What do scientists do when experiments do not confirm their ideas?
(a) Reject the experiments
(b) Blame instruments
(c) Use the results to ask new questions
(d) Quit researching
Answer:
(c) Use the results to ask new questions
Question 11.
What happens when scientific knowledge in one area inspires another field?
(a) It creates confusion
(b) It remains unused
(c) It leads to interdisciplinary discoveries
(d) It is ignored by other scientists
Answer:
(c) It leads to interdisciplinary discoveries
Question 12.
Why is observing materials like haldi stains or melting ice important?
(a) Because they are part of homework
(b) Because they help us design uniforms
(c) Because they help us understand chemical and physical changes
(d) Because teachers ask about them
Answer:
(c) Because they help us understand chemical and physical changes
Question 13.
Which of these is not a life process?
(a) Breathing
(b) Eating
(c) Growing
(d) Sleeping
Answer:
(d) Sleeping
Question 14.
How does the chapter suggest one should treat “answers” in science?
(a) As the final goal
(b) As the only truth
(c) As opportunities to ask better questions
(d) As memorized facts
Answer:
(c) As opportunities to ask better questions
Question 15.
Which of the following is the best example of interconnection between science topics?
(a) Studying only biology for a test
(b) Ignoring physics when studying chemistry
(c) Using knowledge of heat to understand melting glaciers
(d) Drawing a leaf for art class
Answer:
(c) Using knowledge of heat to understand melting glaciers
Question 16.
How can a child begin to “think like a scientist”?
(a) By scoring full marks
(b) By reading more than others
(c) By being curious and asking unusual questions
(d) By using calculators
Answer:
(c) By being curious and asking unusual questions
The Ever Evolving World of Science Class 7 Assertion Reason Questions
Given below are two statements, one labelled as Assertion (A) and the other labelled as Reason (R).
(a) Both (A) and (R) are true and (R) is correct explanation of (A).
(b) Both (A) and (R) are true and (R) is not correct explanation of (A).
(c) (A) is true but (R) is false.
(d) (A) is false but (R) is true.
1. Assertion (A): Science doesn’t help us tp explore the world around us.
Reason (R): Science encourages us to ask questions, experiment and learn from our observations.
Answer:
(d) (A) is false but (R) is true
2. Assertion (A): There are two types of changes.
Reason (R): The two types of changes reversible and irreversible change.
Answer:
(a) Both (A) and (R) are true and (R) is correct explanation of (A)
3. Assertion (A): The water evaporates from the seas.
Reason (R): Water gets heat from the sun.
Answer:
(c) (A) is true but (R) is false.
4. Assertion (A): Change of water from liquid to steam is a physical change.
Reason (R): When water changes from liquid to gaseous state the chemical composition of water changes.
Answer:
(d) (A) is false but (R) is true
5. Assertion (A): Day and night occur due to sun.
Reason (R): Sun and moon get light from the sun.
Answer:
(a) Both (A) and (R) are true and (R) is correct explanation of (A)
The Ever Evolving World of Science Class 7 Fill in the Blanks
1. Science is not just about facts, it is also about ______ and ______.
Answer:
questioning, exploring
2. The page numbers in the book follow the playful flight of a ______ and a ______.
Answer:
butterfly, paper plane
3. Simple observations like paper planes inspired early studies about ______.
Answer:
flight
4. Science promotes a way of thinking that welcomes ______ and is open to the ______.
Answer:
curiosity, unknown
5. Some changes, like fruits ripening, are ______ and cannot be ______.
Answer:
permanent, reversed
6. Heat can make changes happen ______, like melting ice or evaporating water.
Answer:
faster
7. Animals need to ______, ______, and circulate nutrients to survive.
Answer:
eat, breathe
8. Plants prepare their own food through a process called ______.
Answer:
photosynthesis
9. Studying light and shadows helped people understand day, night, and ______.
Answer:
eclipses
10. Science is connected to both discovery and ______ towards nature and society.
Answer:
responsibility
The Ever Evolving World of Science Class 7 True or False
1. Science is about memorizing facts and repeating them.
Answer: False
2. Moon goes around the sun.
Answer: False
3. Melting of ice is a physical change
Answer: True
4. The plants need food to grow.
Answer: True
5. Physical changes cannot be reversed.
Answer: False