Planning an Investigation

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What are qualitative observations?

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Qualitative observations are descriptions based on the qualities or characteristics of something, rather than numerical measurements.

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What is a controlled variable in an investigation?

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A controlled variable is a factor in an experiment that is kept constant to ensure that any changes in the dependent variable are due to the independent variable.

Tags

NGSS.MS-PS2-2

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What is an inference in the context of scientific investigations?

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An inference is a conclusion drawn from evidence and reasoning, often used in the Claim, Evidence, Reasoning (CER) framework.

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Why is it important to test one variable at a time in an experiment?

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Testing one variable at a time allows researchers to determine the specific cause of any changes observed in the experiment.

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What is the purpose of defining the learning objective in an investigation?

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The purpose defines the learning objective for the activity, guiding the focus and direction of the investigation.

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What is a hypothesis in scientific research?

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A hypothesis is a testable statement or prediction about the relationship between two or more variables.

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What is the difference between independent and dependent variables?

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The independent variable is the one that is changed or controlled in an experiment, while the dependent variable is the one that is measured or observed.

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What role does evidence play in scientific investigations?

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Evidence supports claims made in scientific investigations and helps to validate conclusions drawn from the data.

Tags

NGSS.HS-ESS3-5

NGSS.HS-LS1-6

NGSS.HS-LS4-1

NGSS.HS-PS1-2

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What is the significance of replicating experiments?

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Replicating experiments is important to verify results and ensure that findings are reliable and not due to chance.

Tags

NGSS.MS-PS1-2

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What is a scientific model?

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A scientific model is a representation of an idea, object, or process that helps to explain and predict phenomena.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-2