Chapter 1 Review - 2024-25

Match the following Vocabulary Terms

• Bias

• A logical interpretation based on prior knowledge and experience

• Inference

• Process of noticing and describing events or processes in a careful, orderly way.

• Observation

• Organized way of gathering and analyzing evidence about the natural world

• Science

• Possible explanation for a set of observations or possible answer to a scientific question.

• Hypothesis

• Particular preference or point of view that is personal, rather than scientific.

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Core Idea ETS2.B

LS1.A

Reorder the following Steps of the Scientific Method

• Experiment

• Collection and Analysis of Data

• Drawing Conclusions

• Hypothesis

• Initial Observation

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LS1.A

Evidence; Information gathered from observations.

• Bias

• Data

• Theory

• Biology

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LS1.A

The variable that is deliberately changed is called the ​ (a)   (also called the manipulated variable).

• independent variable
• dependent variable
• controlled variable
• inference

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LS1.A

Group in an experiment that is exposed to the same conditions as the experimental group except for one independent variable.

• Independent group

• Dependent group

• Control group

• Hypothesis

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LS1.A

Match the following Steps in the Scientific Method: Salt Marsh Experiment

• Observing and Asking Questions

• The researchers inferred that something limits grass growth in some places.

• Collecting and Analyzing Data

• The researchers selected similar plots of marsh grass. The plots were divided into control and experimental groups.

• Designed Controlled Experiments

• Data from all plots were compared and evaluated by statistical tests.

• Inferring and Hypothesizing

• Researchers observed that marsh grass grows taller in some places than others.

• Drawing Conclusions

• The researchers sampled all the plots throughout the growing season

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LS1.A

Variable that is observed and that changes in response to the independent variable.

• Dependent Variable
• Control Variable
• Independent Variable
• Extraneous Variable

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LS1.A

Experiment in which only one variable is changed.

• Controlled experiment
• Uncontrolled experiment
• Random experiment
• Blind experiment

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LS1.A

A well tested explanation that unifies a broad range of observations and hypotheses and enables scientists to make accurate predictions about new situations.

• Scientific law

• Inference

• Theory

• Bias

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LS1.A

To be valid, a hypothesis must be

• measurable

• observable

• correct

• testable

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NGSS.HS-LS2-6