+20 Questions on Scientific Method
20 multiple choice questions on the Scientific Method, suitable for middle or high school science students. The answers are listed at the end.
Multiple Choice Questions: Scientific Method
1. What is the first step of the scientific method?
A) Forming a hypothesis
B) Conducting an experiment
C) Asking a question or identifying a problem
D) Analyzing data
2. What is a hypothesis?
A) A guess with no basis
B) A testable prediction
C) A proven fact
D) A summary of results
3. Which of the following is the correct order of the scientific method?
A) Question → Hypothesis → Experiment → Observation → Conclusion
B) Hypothesis → Conclusion → Experiment → Question
C) Observation → Conclusion → Hypothesis → Experiment
D) Experiment → Hypothesis → Question → Conclusion
4. What is the purpose of conducting an experiment?
A) To write a report
B) To prove a theory
C) To test a hypothesis
D) To make new chemicals
5. Which part of the scientific method involves using your senses to gather information?
A) Hypothesis
B) Conclusion
C) Observation
D) Theory
6. What is a variable in an experiment?
A) A constant value
B) A guess
C) A factor that can change
D) A measurement unit
7. Which variable is deliberately changed in an experiment?
A) Dependent variable
B) Independent variable
C) Controlled variable
D) Measured variable
8. Which variable is measured in an experiment?
A) Independent variable
B) Dependent variable
C) Constant
D) Control
9. Why is it important to have a control group in an experiment?
A) To make the experiment longer
B) To test more variables
C) To compare results against standard conditions
D) To confuse the observer
10. What is the final step of the scientific method?
A) Collecting data
B) Drawing a conclusion
C) Asking a question
D) Making a hypothesis
11. What does it mean if your hypothesis is incorrect?
A) You have failed
B) The experiment is invalid
C) You learned something new
D) You cannot publish results
12. What is data in an experiment?
A) The hypothesis
B) The materials used
C) The recorded observations and measurements
D) The purpose of the experiment
13. Why should experiments be repeated?
A) To use more materials
B) To waste time
C) To ensure reliability and accuracy
D) To impress others
14. What should a good hypothesis include?
A) A list of tools
B) A guess without reason
C) A testable statement with variables
D) A long explanation
15. Which of the following is NOT part of the scientific method?
A) Testing
B) Guessing randomly
C) Observing
D) Analyzing data
16. What is a conclusion in an experiment?
A) A summary of steps
B) A review of others’ work
C) A statement based on experimental results
D) A new question
17. Why is it important to record data during an experiment?
A) To show neat handwriting
B) To play with numbers
C) To remember and analyze results
D) To write a story
18. What makes an experiment “fair”?
A) Having multiple variables
B) Changing conditions randomly
C) Keeping all variables constant except one
D) Letting others participate
19. What do scientists do after they analyze data?
A) Change the hypothesis
B) Draw a conclusion
C) Do nothing
D) Buy new equipment
20. What is a theory?
A) A guess
B) A proven fact
C) A well-tested explanation supported by evidence
D) A law
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Answer Key
1. C) Asking a question or identifying a problem
2. B) A testable prediction
3. A) Question → Hypothesis → Experiment → Observation → Conclusion
4. C) To test a hypothesis
5. C) Observation
6. C) A factor that can change
7. B) Independent variable
8. B) Dependent variable
9. C) To compare results against standard conditions
10. B) Drawing a conclusion
11. C) You learned something new
12. C) The recorded observations and measurements
13. C) To ensure reliability and accuracy
14. C) A testable statement with variables
15. B) Guessing randomly
16. C) A statement based on experimental results
17. C) To remember and analyze results
18. C) Keeping all variables constant except one
19. B) Draw a conclusion
20. C) A well-tested explanation supported by evidence
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