Environmental Science Chapter 2 Recap

When it is not possible to conduct an experiment, scientists test their predictions by

• a. examining correlations.

• b. using a control.

• c. testing for one variable.

• d. remaining skeptical.

An essential feature of every good experiment is that it should

• a. use a control.

• b. test a single variable.

• c. graph data.

• d. Both (a) and (b)

The experimental method includes which of the following steps?

• a. remaining skeptical, organizing data, and analyzing data

• b. drawing conclusions, being open to new ideas, and communicating results

• c. observing, hypothesizing, predicting, experimenting, and communicating results

• d. being curious, imagining, being able to see patterns, observing, and predicting

What is not a description of a good hypothesis?

• a. It makes logical sense.

• b. It is a testable explanation of an observation.

• c. It follows from what you already know about a situation.

• d. It is a guess based on previous experiments.

One of the key habits of mind of scientists is __________, which allows scientists to expand the boundaries of what we know.

• a. intellectual honesty

• b. imagination

• c. replication

• d. correlation

A road map is an example of a

• a. graphical model.

• b. mathematical model.

• c. conceptual model.

• d. physical model.

Statistics are not used by scientists to

• a. compare data.

• b. analyze data.

• c. gather data.

• d. All of the above

In a scientific investigation, the size of the sample population should be large enough to

• a. reflect the probability of an unwanted outcome.

• b. give an accurate estimate of the whole population.

• c. closely resemble the system they represent.

• d. All of the above

If you consider what will add to our understanding of the natural world in making an environmental decision, you are examining a(n) ___________ value.

• a. ethical/moral

• b. aesthetic

• c. environmental

• d. scientific

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NGSS.HS-ESS3-1

NGSS.HS-ESS3-5

NGSS.HS-LS2-7

What is the first step in an environmental decision-making model?

• a. Explore the consequences of each option.

• b. Consider which values apply to the issue.

• c. Make a decision.

• d. Gather information.

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NGSS.MS-ETS1-1