Quiz on the Scientific Method

Which of the following is the first step in the scientific method?

• Experiment

• Hypothesis

• Observation

• Conclusion

What is a hypothesis?

• A theory that has been proven

• An educated guess or prediction

• A random statement

• An untestable opinion

What is the purpose of conducting an experiment?

• To collect data to prove a theory

• To test the hypothesis

• To write a conclusion

• To share findings with others

Which step follows data collection in the scientific method?

• Conducting more experiments

• Formulating a hypothesis

• Analyzing the data

• Writing a theory

In the scientific method, a variable that is deliberately changed is known as the:

• Dependent variable

• Independent variable

• Controlled variable

• Experimental constant

Which of the following describes a controlled variable?

• A variable that is measured

• A variable that is kept the same

• A variable that is changed

• A variable that determines the result

What is peer review in the scientific method?

• Friends helping each other with experiments

• Experts in the field reviewing the research

• Reviewing past experiments before starting a new one

• Sharing data with the general public

Why is replication important in the scientific method?

• It allows the same experiment to be published multiple times

• It helps verify the results by repeating the experiment

• It saves time by skipping the observation step

• It guarantees a successful experiment

What should you do if the data from an experiment does not support the hypothesis?

• Ignore the results and move on

• Change the data to match the hypothesis

• Revise or reject the hypothesis

• Publish the results anyway

Which of the following best defines a theory in science?

• A guess that has no basis in data

• An explanation based on repeated experiments and evidence

• A random statement about nature

• An idea that cannot be tested