Practicing Class 8 Science MCQ and Class 8 Science Chapter 1 Exploring the Investigative World of Science MCQ Questions Online Test with Answers daily helps in time management.
Class 8 Exploring the Investigative World of Science MCQ with Answers
MCQ on Exploring the Investigative World of Science Class 8
Class 8 Science Chapter 1 Exploring the Investigative World of Science MCQ Questions with Answers
Question 1.
Which of the following are core ideas Science textbook introduction?
(i) Science is about asking simple and focused questions.
(ii) Investigation includes careful observation and experimentation.
(iii) Students are expected to memorise scientific facts only.
(iv) Investigation combines curiosity with structured thinking.
(a) (i) and (ii)
(b) (ii) and (iii)
(c) (i), (ii) and (iv)
(d) (iii) and (iv)
Answer:
(c) (i), (ii) and (iv)
Question 2.
Pick the odd one out.
(a) Observation
(b) Experimentation
(c) Investigation
(d) Memorisation
Answer:
(d) Memorisation
Question 3.
Choose the correct reason why students are encouraged to do experiments.
(a) To create confusion and test their memory.
(b) To copy from textbooks.
(c) To investigate real-world questions and build understanding.
(d) To prepare for exams only.
Answer:
(c) To investigate real-world questions and build understanding.
Question 4.
The symbols of the root and the kite in the textbook represent:
(a) culture and success
(b) tradition and modernity
(c) grounded observation and soaring curiosity
(d) the Earth and sky.
Answer:
(c) grounded observation and soaring curiosity
Question 5.
Which of the following real-world questions from the introduction reflects scientific inquiry?
(a) What is the highest mountain?
(b) Why does dough rise?
(c) Who invented the telescope?
(d) How many stars are there?
Answer:
(b) Why does dough rise?
Question 6.
What causes wind and cyclones to form?
(a) Rainfall
(b) Change in seasons
(c) Difference in air pressure
(d) Earth’s rotation
Answer:
(c) Difference in air pressure
Question 7.
Which of the following is a solution?
(a) Oil and water
(b) Sugar dissolved in tea
(c) Sand and salt
(d) Sand and water
Answer:
(b) Sugar dissolved in tea
Question 8.
Which of the following is responsible for the Moon’s changing shape in the sky?
(a) Clouds covering it
(b) The Earth’s shadow blocking it
(c) Sunlight falling on different parts
(d) The Moon spinning faster
Answer:
(c) Sunlight falling on different parts
Question 9.
What early human invention was based on the Moon’s phases?
(a) Map
(b) Clock
(c) Calendar
(d) Compass
Answer:
(c) Calendar
Question 10.
What human activity can lead to climate disruption?
(a) Recycling
(b) Planting trees
(c) Increasing greenhouse gas emissions
(d) Cleaning beaches
Answer:
(c) Increasing greenhouse gas emissions
Exploring the Investigative World of Science Class 8 Assertion-Reason Type Questions
Directions (Q. No. 1 to 2): The question below consists of an Assertion (A) and a Reason (R).
Use the following key to choose the appropriate answer.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A .
(c) A is true but R is false.
(d) A is false but R is true.
Question 1.
Assertion (A): Changing only one factor at a time in an experiment helps identify the cause of a result.
Reason (R): Controlling variables ensures that the results are due to the one factor being tested.
Answer:
(a) Both A and R are true and R is the correct explanation of A.
Question 2.
Assertion (A): Science only requires memorising facts and definitions.
Reason (R): Science encourages curiosity, observation, and investigation to discover new knowledge.
Answer:
(d) A is false but R is true.
Exploring the Investigative World of Science Class 8 Fill in the blanks
Question 1.
Careful observation and ……….. thinking form the base of good scientific work.
Answer:
creative
Question 2.
A ……….. investigation involves changing one factor at a time while keeping others constant.
Answer:
systematic
Question 3.
While doing experiments, it is important to keep ……….. of everything we observe.
Answer:
notes
Question 4.
The ……….. in the textbook represents a strong foundation in knowledge and heritage.
Answer:
root
Question 5.
The kite symbol reminds us that ……….. must take flight if we are to explore the unknown.
Answer:
curiosity
Exploring the Investigative World of Science Class 8 True or False
Question 1.
Systematic investigation means trying random changes during an experiment.
Answer:
False
Question 2.
Scientific investigator explores everyday problems and puzzles by thinking and testing.
Answer:
True
Question 3.
Creative thinking is not important in science.
Answer:
False
Question 4.
Scientific questions can come from both everyday life and cosmic mysteries.
Answer:
True
Question 5.
Air pressure plays no role in the movement of wind.
Answer:
False
Exploring the Investigative World of Science Class 8 Match the following
Question 1.
| Column A | Column B |
| (i) Phases of the Moon | (a) Difference in air pressure |
| (ii) Cyclones | (b) Created the basis for calendars |
| (iii) Light bending through mirror | (c) Leads to puffing of dough |
| (iv) Air bubbles forming in a puri | (d) Leads to investigation and experiments |
| (v) Scientific question | (e) Reflection |
Answer:
| Column A | Column B |
| (i) Phases of the Moon | (b) Created the basis for calendars |
| (ii) Cyclones | (a) Difference in air pressure |
| (iii) Light bending through mirror | (e) Reflection |
| (iv) Air bubbles forming in a puri | (c) Leads to puffing of dough |
| (v) Scientific question | (d) Leads to investigation and experiments |