Scientific Method Chemistry

Which are part of the scientific method?

• Identify the Problem

• Perform an Experiment

• Form a Hypothesis

• Collect lots of money

• Communicate the Results

Tags

NGSS.MS-PS2-2

What is a control?

• What a scientist changes in an experiment to test their hypothesis

• What scientist measure to see if it responded to a change

• What happens when you do an experiment

• What you keep the same throughout all experimental groups

A possible explanation to a problem that has not yet been tested. 

• data

• theory

• hypothesis

• fact

Tags

NGSS.HS-PS1-2

The summary at the end of an experiment that explains the results. 

• conclusion

• procedures

• materials

• responding variable

Tags

NGSS.MS-LS1-5

NGSS.MS-PS1-2

Observations made during an experiment are called:

• data

• problems

• conclusions

• questions

Which is true about hypothesis?

• It may reject or accepts your prediction.

• It is an educated guess or possible answer to the question.

• It summarizes the result on the experiment.

• It is the final answer to the question.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-4

In order to be accepted, a scientific theory must be

•  widely tested and supported by extensive data

•  based on the results of a single experiment

•  controversial and cause debate

•  in line with all previous historical ideas

Tags

NGSS.HS-LS4-1

NGSS.HS-LS4-5

Which statement best expresses a basic scientific assumption?

• Interpretation of experimental results has provided explanations for all natural phenomena.

• If a conclusion is valid, similar investigations by other scientists should result in the same conclusion.

• For any conclusion to be valid, the design of the experiment requires that only two groups be compared.

• After a scientist formulates a conclusion based on an experiment, no further investigation is necessary.

Tags

NGSS.MS-LS2-4

Which step in the scientific method involves making an educated guess about the outcome of an experiment?

• Observation

• Hypothesis

• Experimentation

• Conclusion

In a chemistry experiment, what is the purpose of a control group?

• To introduce a variable to test

• To serve as a standard for comparison

• To ensure the experiment is valid

• To measure the dependent variable