Chapter 2 Test: Tools of Environmental Science

Name: (Last, First)

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

• statistics
• probability
• distribution
• mean

The group that does not receive the experimental treatment in an experiment is the

• control group
• experimental group
• data
• variable

By examining ________, scientists can test predictions for situations in which it is impossible or unethical to use experiments.

• correlations
• observations
• control groups
• variables

In an experiment, the factor that changes in order to test a hypothesis is called the

• control group
• experimental group
• hypothesis
• variable

The average mass of a wolf in a pack of wolves is an example of

• mean
• distribution
• sample size
• statistical population

A model of a dinosaur is an example of a __________ model.

• graphical
• mathematical
• conceptual
• physical

The chance that an earthquake will occur in your town during the next year is an example of

• correlation
• skepticism
• risk
• distribution

The scientific method includes which of the following steps?

• remaining skeptical, organizing data, and analyzing data
• drawing conclusions, being open to new ideas, and communicating results
• observing, hypothesizing, experimenting, gathering data, and conclusion
• being curious, imagining, being able to see patterns, observing, and predicting

Why are mathematical models important?

• They are especially useful in situations with many variables
• They can be used to create useful digital images
• They can represent how a system or process works
• All of the above