E. Science-Chp. 2 Vocabulary Review

What is a scientist doing when she listens to the sounds that an elephant makes?

• making a conclusion

• making observations

• analyzing data

• making a hypothesis

A conclusion you make based on evidence.

• observation

• inference

• experiment

• question

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

• Examining correlations

• Using a control

• Testing for one variable

• Remaining skeptical

An essential feature of every good experiment is that it should

• Use a control

• Test a single variable

• Graph data

• Both a and b

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

• Intellectual honesty

• Imagination

• Replication

• Correlation

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

• Reflect the probability of an unwanted outcome

• Give an accurate estimate of the whole population

• Closely resemble the system they represent

• All of the above

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

• a. Explore the consequences of each option

• Consider which values apply to the issue

• Make a decision

• Gather information

What is a good system of analyzing issues?

• Using cause-and-effect chart

• Determining the mean for a population

• Using a decision making model

• Performing experiments

Risk is

• The collection of numerical data

• The probability that something wanted will happen

• The probability that something unwanted will happen

• A group of similar things of interest to a scientist

The classification and collection of data that are in the form of numbers is called

• Statistics

• Probability

• Distribution

• Mean