ONLINE MCQ TESTS FOR SCEINCE NCERT 2026-27
Part 1: What is Science and Why do we Study it?
Multiple Choice Questions
Basic Level
The word Science is derived from the Latin word Scientia which means
A. Experiment
B. Knowledge
C. Observation
D. Nature
Answer: B
Which of the following is considered the very first step in any scientific investigation?
A. Drawing a conclusion
B. Performing an experiment
C. Making an observation
D. Writing a report
Answer: C
A person who uses systematic methods and experiments to discover new knowledge is called a
A. Doctor
B. Engineer
C. Scientist
D. Teacher
Answer: C
Science helps us to develop a Scientific Temper which is best described as
A. A habit of getting angry quickly
B. The ability to memorize all textbook facts
C. Having a curious logical and open mind
D. The skill of drawing complex diagrams
Answer: C
Which of the following is a direct result of applying scientific knowledge to solve human needs?
A. A rain cloud
B. A mobile phone
C. A mountain range
D. A natural river
Answer: B
Moderate Level
If a scientist performs an experiment and the results do not support their hypothesis what should be the next step?
A. Change the results to fit the original hypothesis
B. Ignore the results and publish the original idea
C. Re-evaluate the hypothesis based on the new evidence
D. Stop performing experiments entirely
Answer: C
What is the primary difference between a scientific fact and a scientific hypothesis?
A. A fact is an educated guess while a hypothesis is always true
B. A hypothesis is a testable explanation while a fact is a confirmed observation
C. Facts are only used in Biology while hypotheses are used in Physics
D. There is no real difference between a fact and a hypothesis
Answer: B
Why is it essential for scientific experiments to be repeatable by other people in different locations?
A. To ensure the results are consistent and not just a one-time accident
B. So that other scientists do not get bored with their work
C. Because it is a requirement to pass school examinations
D. To use up more laboratory chemicals globally
Answer: A
Which specific branch of science deals with the study of celestial bodies like stars planets and galaxies?
A. Biology
B. Chemistry
C. Astronomy
D. Botany
Answer: C
In the context of modern learning science is most accurately described as a
A. Finished book containing all the world's answers
B. Continuous and never-ending journey of exploration
C. Set of rigid rules to be memorized for tests
D. Collection of ancient stories and myths
Answer: B
Challenging & HOTS Type
Assertion: Science is a universal subject that is not limited to any specific country or culture. Reason: The laws of nature such as gravity work the same way everywhere in the universe.
A. Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B. Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
C. Assertion is true but Reason is false
D. Assertion is false but Reason is true
Answer: A
If you notice that one plant in a row is much smaller than the others which action represents a truly scientific approach?
A. Assuming it is just a weak plant by nature
B. Systematically comparing the light water and soil conditions of all plants
C. Giving that one plant a different type of juice to see what happens
D. Ignoring the observation as it is not important
Answer: B
How does the study of science primarily contribute to the goal of Sustainable Development?
A. By teaching us how to use up all natural resources quickly
B. By providing methods to protect the environment while meeting human needs
C. By focusing exclusively on building larger industrial factories
D. By teaching us to ignore the long-term effects of pollution
Answer: B
In a hypothetical world where scientific study was banned for a century what would be the most likely impact?
A. Technology and medical care would stop advancing and likely decline
B. Humans would automatically become more intelligent over time
C. Modern technology would continue to improve without any help
D. There would be absolutely no change in the human way of life
Answer: A
Assertion: Questioning is considered the most important tool in the field of science. Reason: Scientific progress usually stops when people stop asking Why and How.
A. Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B. Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
C. Assertion is true but Reason is false
D. Assertion is false but Reason is true
Answer: A
Science isn't just a subject in a textbook; it is a systematic way of exploring, understanding, and making sense of the world around us. In Grade 6, we begin this journey by looking at the curiosity that drives human discovery.
Science is derived from the Latin word Scientia, which means "knowledge." However, it is not just a collection of facts. It is a process.
Observation: It starts with looking closely at things—why is the sky blue? Why do plants grow toward the light?
Experimentation: Scientists don't just guess; they test their ideas.
Logical Reasoning: Science uses evidence to reach conclusions. If an experiment doesn't support an idea, the idea is changed or discarded.
Scientific method explanation scheme with test experiments outline concept
We study science for several vital reasons that impact our daily lives:
Developing Scientific Temper: This means developing a mind that asks "Why?" and "How?" instead of blindly accepting information. It encourages critical thinking and curiosity.
Solving Problems: From finding cures for diseases to creating sustainable energy, science provides the tools to solve global and local challenges.
Understanding Nature: Science explains the laws of physics, the chemistry of our food, and the biology of our bodies, helping us live in harmony with our environment.
Technological Advancement: Every gadget we use—smartphones, fans, cars—is a product of scientific principles applied through technology.