Chapter 2 Pre-Test

What essential characteristic does a good experiment have?

• A control group is given the experimental treatment

• A single variable is tested

• A control is used

• both b and c

Your county is considering buying land to form a nature preserve. On this land, an endangered species of bird is known to breed. Which of the following is a possible negative short-term consequence of the county making this decision?

• The population of the endangered species increases

• Habitat destruction is immediately decreased

• Environmental controls are made less strict outside the preserve area

• Habitats outside the preserve area become damaged by over development

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

The three final steps of the experimental method in their correct order are

• drawing conclusions, analyzing data, and repeating experiments

• drawing conclusions, repeating experiments, and communicating results

• observing hypothesizing, and drawing conclusions

• repeating experiments, communicating results, and drawing conclusions

When making a decision about whether or not to build a dam, you are considering an economic value when you ask which of the following questions?

• Will the dam provide new leisure activities?

• How many jobs will building the dam generate?

• Will building the dam destroy natural resources?

• Is it right to build a dam here?

Tags

NGSS.MS-ESS3-4

NGSS.MS-ETS1-1

NGSS.MS-LS2-5

What step in a simple environmental decision-making model are you taking when you consider whether or not people will benefit financially from setting aside land as a national park?

• exploring consequences

• making a decision

• gathering information

• none of the above

Tags

NGSS.MS-ETS1-2

When you ask the question. "If a marsh is included as part of a nature preserve, will it help protect our water resources? You are considering which of the following types of values?

• aesthetic

• educational

• environmental

• physical

Tags

NGSS.MS-ESS2-4

NGSS.MS-LS2-5

Which of the following models would you use to represent the shape of Earth's surface beneath the oceans?

• graphical

• mathematical

• conceptual

• physical

Tags

NGSS.MS-ESS2-3

Scientists form _______ hypotheses to answer questions.

• accurate

• short

• mathematical

• testable

Risk is the _______ of a negative outcome.

• sample

• statistic

• probability

• event

If the results of your experiment do not support your hypothesis, you should

• publish your results anyway

• consider the results abnormal and continue working

• find a way to rationalize your results.

• try another method.

Tags

NGSS.HS-LS1-3