Section 1 - Scientific Investigation

Which statement best describes the nature of science?

• The nature of science is for scientists to prove that their hypotheses are correct.

• The nature of science is to recreate nature in the laboratory.

• The nature of science is for scientists to prove their point of view is correct.

• The nature of science is to investigate and understand the natural world and to use this understanding to make useful predictions.

A tentative and TESTABLE explanation for an observation.

An "IF..THEN" statement

• Inference

• Independent Variable

• Hypothesis

• Dependent Variable

Tags

NGSS.MS-LS1-5

The group that does not receive the experimental treatment.

• Constants

• Control Group

• Experimental Group

• Variable

Number based data

Ex. 5 mL or 7 mL

• Quantitative Data

• Conclusion

• Qualitative Data

• Single Variable

Tags

NGSS.MS-PS3-1

Data based on physical descriptions.

Ex. Red, Blue

• Qualitative Data

• Quantitative Data

• Hypothesis

• Homeostasis

A student's experiment showed that earthworms move away from light. This statement should be classified as -

• an inference

• a prediction

• a hypothesis

• a conclusion

Which of the following are possible errors in an experiment?

• too many variables changing

• No control group

• not enough trials/data

• All of the above

Tags

NGSS.MS-PS2-5

The purpose of a controlled experiment is to allow a scientist to isolate and test -

• a conclusion

• Many data

• several variables

• a single variable

Tags

NGSS.MS-PS2-2

The variable that the scientist changes in an experiment.

• Independent Variable

• Dependent Variable

• Control Group

• Constant

The effect or outcome of an experiment. What is measured in an experiment.

• Contant

• Independent Variable

• Dependent Variable

• Control Group

Tags

NGSS.MS-PS3-4