Exploring the Scientific Method

What is a hypothesis?

• A hypothesis is a summary of research findings.

• A hypothesis is a testable statement about the relationship between variables.

• A hypothesis is a random guess without evidence.

• A hypothesis is a proven fact about variables.

How do you formulate a hypothesis?

• A hypothesis is a definitive conclusion about the outcome of an experiment.

• A hypothesis is a statement that cannot be tested or measured.

• A hypothesis is a testable prediction about the relationship between variables.

• A hypothesis is a random guess without any basis.

What is the purpose of an experiment?

• To summarize existing research findings.

• To create a final product immediately.

• The purpose of an experiment is to test hypotheses and gather data.

• To prove a theory without evidence.

Tags

NGSS.MS-LS1-5

NGSS.MS-PS1-2

NGSS.MS-PS2-2

What are the key components of an experiment?

• Hypothesis, variables, control group, sample size, data collection method.

• Observation, theory, literature review, statistical significance

• Data analysis, peer review, funding sources, ethical considerations

• Conclusion, analysis, research question, literature review

What is a control group?

• A control group is the group receiving the treatment in an experiment.

• A control group is used to manipulate the variables in an experiment.

• A control group is used as a baseline to measure the effect of a treatment in an experiment.

• A control group is a type of experimental treatment applied to all subjects.

Why is it important to have a control group?

• A control group is used to increase the sample size of the experiment.

• Control groups are only necessary for observational studies.

• Having a control group is irrelevant to the outcome of the experiment.

• It is important to have a control group to isolate the effects of the treatment and ensure valid results.

Tags

NGSS.MS-PS2-2

What is the difference between independent and dependent variables?

• Independent variables are the results of experiments; dependent variables are the causes.

• Independent variables are always constant; dependent variables vary.

• Independent variables are manipulated; dependent variables are measured.

• Dependent variables are manipulated; independent variables are measured.

Tags

NGSS.MS-PS3-4

How do you ensure that an experiment is fair?

• Allow participants to choose their own groups

• Conduct the experiment in a single location

• Use only one variable at a time

• Control variables, use random sampling, apply consistent procedures, and include a control group.

What methods can be used to collect data during an experiment?

• Graphs, charts, models, hypotheses, conclusions.

• Calculations, simulations, predictions, theories, assumptions.

• Books, articles, websites, discussions, lectures.

• Surveys, observations, experiments, interviews, measurements.

What is the importance of repeating experiments?

• It guarantees immediate success in research.

• Repeating experiments ensures reliability and validity of results.

• Repeating experiments is a waste of time.

• It helps in discovering new theories.

Tags

NGSS.MS-ETS1-4