Scientific method and its application MCQs in Everyday Science

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1. : What is the first step of the scientific method?
(A) Conducting an experiment
(B) Formulating a hypothesis
(C) Observing and asking questions
(D) Analyzing data

2. : Which of the following is a hypothesis?
(A) The sun rises in the east.
(B) Water boils at 100°C at sea level.
(C) If plants are exposed to more sunlight, then they will grow faster.
(D) The Earth orbits the Sun.

3. : What is a control group in an experiment?
(A) The group that receives the experimental treatment
(B) The group that does not receive the experimental treatment
(C) The group that is observed but not tested
(D) The group that is subjected to multiple variables

4. : What is the purpose of conducting a scientific experiment?
(A) To confirm existing theories
(B) To create new theories
(C) To test a hypothesis and gather data
(D) To disprove all existing hypotheses

5. : Which of the following best describes a scientific theory?
(A) A speculative idea with no supporting evidence
(B) A conclusion based on a single experiment
(C) A well-substantiated explanation of some aspect of the natural world
(D) A collection of unrelated facts

6. : What is the role of peer review in scientific research?
(A) To make research more expensive
(B) To provide a platform for publicity
(C) To validate and critique research before publication
(D) To replace the need for experimental data

7. : Which step in the scientific method involves analyzing data to determine if it supports or refutes the hypothesis?
(A) Observation
(B) Experimentation
(C) Data analysis
(D) Formulating a hypothesis

8. : In a scientific experiment, what is an independent variable?
(A) The variable that remains constant throughout the experiment
(B) The variable that is measured and affected by changes
(C) The variable that is changed or manipulated by the experimenter
(D) The variable that is ignored

9. : What does the term “replication” mean in scientific research?
(A) Repeating an experiment to verify results
(B) Publishing results in multiple journals
(C) Creating new hypotheses based on findings
(D) Changing the experimental design

10. : Which of the following is an example of a quantitative observation?
(A) The flower is red.
(B) The liquid has a sweet smell.
(C) The object weighs 250 grams.
(D) The temperature feels warm.

11. : What is the purpose of a scientific model?
(A) To provide a detailed description of the experimental process
(B) To simulate complex systems and predict outcomes
(C) To display the results in a visually appealing manner
(D) To eliminate the need for further experimentation

12. : What is an example of a qualitative observation?
(A) Measuring the pH level of a solution
(B) Counting the number of plants in a garden
(C) Describing the color of a flower
(D) Recording the temperature of a liquid

13. : Which type of research aims to solve practical problems and improve quality of life?
(A) Basic research
(B) Applied research
(C) Theoretical research
(D) Historical research

14. : What is the role of a hypothesis in the scientific method?
(A) To provide a conclusive answer to a research question
(B) To predict the outcome of an experiment
(C) To summarize the findings of a study
(D) To describe the methodology used

15. : What is the purpose of a scientific experiment’s control?
(A) To test the effect of the independent variable
(B) To ensure the experiment is conducted accurately
(C) To compare the results with the experimental group
(D) To provide additional variables for testing

16. : Which statement best defines a scientific law?
(A) A detailed explanation based on extensive observations
(B) A statement that describes an observed phenomenon
(C) A prediction based on a single experiment
(D) A hypothesis that has been repeatedly tested and confirmed

17. : What is the role of statistical analysis in scientific research?
(A) To prove the hypothesis
(B) To describe data trends and validate results
(C) To create scientific theories
(D) To present research in a visual format

18. : What is the purpose of using a sample in scientific research?
(A) To increase the complexity of the experiment
(B) To make the research more time-consuming
(C) To represent a larger population for analysis
(D) To provide a more specific outcome

19. : In a scientific study, what is a dependent variable?
(A) The variable that is manipulated to observe its effect
(B) The variable that is kept constant throughout the experiment
(C) The variable that is measured and affected by changes
(D) The variable that is not relevant to the study

20. : What does the term “bias” refer to in scientific research?
(A) An objective and accurate measurement
(B) A systematic error that affects the results
(C) A random fluctuation in data
(D) A hypothesis that is universally accepted

Scientific method and its application MCQs in Everyday Science
By: Prof. Dr. Fazal Rehman | Last updated: May 15, 2025

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