Unit 1.1 Scientific Investigations Review

Which of the following statements is true about scientific investigations?

• They always follow a strict order of steps.

• They involve the collection of empirical evidence.

• They always provide conclusive proof.

• They can be conducted without collecting data.

Tags

NGSS.MS-PS1-2

NGSS.MS-LS2-1

What does it mean when results "fail to support" a hypothesis?

• The hypothesis is proven wrong.

• The results are inconclusive.

• The evidence does not align with the hypothesis.

• The experiment was a failure.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-4

Why do scientists avoid using the term "proof" in scientific conclusions?

• Proof is not needed in science.

• Science is always changing and evolving.

• Scientific knowledge is based on evidence, not proof.

• Proof implies absolute certainty, which science does not offer.

Tags

NGSS.MS-PS1-2

NGSS.MS-LS1-5

Which of the following best describes a scientific hypothesis?

• A proven fact.

• A possible explanation that can be tested.

• An opinion about the natural world.

• A law of science.

Tags

NGSS.MS-PS1-2

Empirical evidence is best described as:

• Data collected through observation or experimentation.

• Theoretical predictions.

• Information found in books.

• Opinions from experts.

Tags

NGSS.MS-LS2-4

Which of the following is NOT a step in interpreting data?

• Organizing data in charts or tables.

• Ignoring data that doesn’t fit your hypothesis.

• Analyzing information for patterns.

• Making predictions based on data.

Tags

NGSS.MS-PS3-4

When scientists say "results support" a hypothesis, they mean that:

• The hypothesis is proven correct.

• The hypothesis is partially correct.

• The evidence aligns with the hypothesis.

• The results are inconclusive.

Tags

NGSS.MS-PS1-2

NGSS.MS-LS1-3

Which of the following is an independent variable in an experiment?

• The variable that is manipulated by the experimenter.

• The variable that is measured or observed.

• The variable that is kept constant.

• The variable that serves as a control.

Tags

NGSS.MS-PS3-4

A dependent variable is:

• The variable that the experimenter changes.

• The outcome that is measured in an experiment.

• A constant that does not change.

• The variable that serves as a baseline.

Tags

NGSS.MS-PS1-2

What should be done if experimental data does not support the hypothesis?

• Discard the data and start over.

• Change the hypothesis to fit the data.

• Analyze the data for errors and reconsider the hypothesis.

• Ignore the results and publish the findings.

Tags

NGSS.HS-PS1-2