The Scientific Method

Multiple Choice Questions

Basic Level

A series of logical steps followed by scientists to solve a problem is called the

A. Scientific Method

B. Scientific Temper

C. Scientific Guess

D. Scientific Branch

Answer: A

When you use your eyes ears and nose to gather information about the world you are making an

A. Hypothesis

B. Observation

C. Experiment

D. Analysis

Answer: B

An educated guess or a possible explanation for an observation that can be tested is called a

A. Conclusion

B. Law

C. Hypothesis

D. Result

Answer: C

What do scientists perform to test whether their hypothesis is correct or incorrect?

A. Observation

B. Questioning

C. Experiment

D. Drawing

Answer: C

The very last step of the scientific method where you summarize your findings is the

A. Hypothesis

B. Analysis

C. Conclusion

D. Observation

Answer: C

Moderate Level

Which of the following is the correct order of the first three steps of the scientific method?

A. Question Observation Hypothesis

B. Observation Question Hypothesis

C. Hypothesis Observation Question

D. Experiment Question Conclusion

Answer: B

If a scientist finds that their experimental data does not support their hypothesis what is the best course of action?

A. Ignore the data and keep the hypothesis

B. Change the data to make the hypothesis look correct

C. Refine or change the hypothesis and test again

D. Stop the investigation immediately

Answer: C

Why is it important for a scientist to record their data accurately during an experiment?

A. To make the lab report look colorful

B. So that others can verify the results and reach the same conclusion

C. Because it is a rule in the school library

D. To use more pages in the notebook

Answer: B

In a scientific experiment the factor that is changed or tested is often called a

A. Constant

B. Conclusion

C. Variable

D. Fact

Answer: C

An analysis of data usually involves which of the following activities?

A. Making a random guess

B. Organizing data into tables or graphs to find patterns

C. Forgetting the initial question

D. Cleaning the laboratory equipment

Answer: B

Challenging & HOTS Type

Assertion: A hypothesis must be testable to be scientifically useful. Reason: If an idea cannot be tested by an experiment it remains a belief rather than science.

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

You notice that a loaf of bread on the counter has mold but a loaf in the fridge does not. What is a valid hypothesis for this?

A. Mold likes the color of the counter more than the fridge

B. Lower temperatures in the fridge slow down the growth of mold

C. Bread should never be kept in a fridge

D. Mold is a type of living organism

Answer: B

Why do scientists share their results in journals and conferences even if their hypothesis was proven wrong?

A. To show off how much work they did

B. To prevent other scientists from making the same mistakes and to build collective knowledge

C. Because they are required to pay a fine if they do not

D. To prove that experiments are a waste of time

Answer: B

In a test to see which detergent removes stains best why must all other conditions like water temperature and cloth type be kept the same?

A. To make the experiment more difficult

B. To ensure that the difference in results is only due to the detergent used

C. Because different cloths are too expensive

D. To save time during the experiment

Answer: B

Assertion: The scientific method is a continuous cycle rather than a straight line that ends. Reason: Conclusions often lead to new observations and new questions for further study.

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

In Part 3: The Scientific Method, we look at the actual "how-to" of science. Scientists don't just guess; they follow a logical, step-by-step process to find answers. This method ensures that their discoveries are based on evidence and can be checked by others.

The 6 Steps of the Scientific Method

1. Observation: Noticing something interesting using your senses (e.g., "The street is wet").

2. Question: Asking why or how that thing happened (e.g., "Did it rain, or did a water tanker leak?").

3. Hypothesis: Making an educated guess that can be tested (e.g., "If it rained, then the trees should also be wet").

4. Experiment: Testing the hypothesis by collecting data under controlled conditions.

5. Analysis: Looking at the results of the experiment to see what they tell us.

6. Conclusion: Deciding whether the hypothesis was correct or needs to be changed.