Scientific Method and Variables

What is the first step of the scientific method?

• Make an observation or ask a question

• Analyze the data

• Draw a conclusion

• Form a hypothesis

What is a hypothesis?

• A proposed explanation or prediction that can be tested through experimentation or observation.

• A statement that cannot be proven or disproven.

• A conclusion based on limited data or personal opinion.

• A random guess without any evidence or reasoning.

What is an independent variable?

• A variable that is measured or observed in an experiment.

• A variable that remains constant throughout an experiment.

• A variable that is influenced by the dependent variable in an experiment.

• A variable that is manipulated or controlled by the researcher in an experiment.

What is a dependent variable?

• A dependent variable is the variable that is manipulated or changed in an experiment or study.

• A dependent variable is the variable that is controlled by the researcher in an experiment or study.

• A dependent variable is the variable being measured or observed in an experiment or study.

• A dependent variable is the variable that is not affected by the independent variable in an experiment or study.

What is a control group?

• A control group is a group in an experiment that receives a higher dosage of the experimental treatment or intervention.

• A control group is a group in an experiment that receives a different type of experimental treatment or intervention.

• A control group is a group in an experiment that does not receive the experimental treatment or intervention.

• A control group is a group in an experiment that receives the same experimental treatment or intervention multiple times.

What is the purpose of a control group in an experiment?

• To introduce bias into the experiment.

• To confuse the results.

• To increase the sample size.

• To provide a baseline for comparison

What is the difference between qualitative and quantitative data?

• Qualitative data is numerical and objective, while quantitative data is descriptive and subjective.

• Qualitative data is quantitative and objective, while quantitative data is qualitative and subjective.

• Qualitative data is objective and numerical, while quantitative data is subjective and descriptive.

• Qualitative data is descriptive and subjective, while quantitative data is numerical and objective.

What is the purpose of peer review in the scientific method?

• To delay the publication of research findings.

• To increase the cost of scientific research.

• To promote competition among scientists.

• To ensure the quality and validity of research

Tags

NGSS.HS-PS4-4

What is the final step of the scientific method?

• Formulating a hypothesis

• Drawing a conclusion

• Conducting experiments

• Collecting data

Why is it important to repeat experiments in the scientific method?

• To waste time and resources.

• To confuse researchers.

• To ensure reliability and validity of results

• To make the results less accurate.

Tags

NGSS.MS-LS2-4