It is important that the number of objects or events being sampled be

large enough for accurate estimate of the whole population.

The experimental method includes which of the following steps?

observing, hypothesizing, predicting, experimenting

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

draw conclusions, repeat experiments, communicate results.

you are considering an economic value when you ask which of the following questions?

How many jobs will building the dam generate?

Curiosity and imagination are important in science because they are

abilities in scientists that help expand our knowledge.

An environmental value is...

the protection of natural resources.

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Chapter 2 Tools of Environmental Science

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Questions 25

Answers

1
The group that does not receive the experimental treatment in an experiment is the
experimental group.
variable
control group.
data.
2
Why are mathematical models important?
All of the above
They can be used to create useful digital images.
They are especially useful in situations with many variables
They can represent how a system or process works.
3
The classification and collection of data that are in the form of numbers is called
distribution.
statistics.
mean
probability.
4
What essential characteristic does a good experiment have?
A control group is given the experimental treatment.
A single variable is tested.
single variable and control
A control is used.
5
It is important that the number of objects or events being sampled be
equal to the total statistical population.
large enough for accurate estimate of the whole population.
a guess of how likely an unwanted outcome will occur.
equal to the mean number of objects or events not sampled.
6
Before you can make a decision using a decision-making model, what step must you take?
Explore the consequences of each option.
Consider which values apply to the issue.
Gather information.
All of the above
7
The experimental method includes which of the following steps?
observing, hypothesizing, predicting, experimenting
remaining skeptical, organizing data, and analyzing data
imagining, being able to see patterns, observing, predicting
drawing conclusions,open to new ideas, communicating results
8
Which step in the experimental method are scientists conducting they photograph bird in flight?
drawing conclusions
hypothesizing
observing
analyzing data
9
To test predictions for situations in which it is impossible or unethical to use experiments.
observations
correlations
variables
control groups
10
In an experiment, the factor of interest is called the
control group.
variable.
hypothesis.
experimental group.
11
A scientific value is...
what is beautiful and pleasing
understanding the world
the protection of resources
the maintenance of human health
12
understanding of the natural world in making an environmental decision
scientific
environmental
ethical/moral
aesthetic
13
Which of the models would you use to represent the shape of Earth’s surface beneath the oceans?
physical
conceptual
graphical
mathematical
14
The average mass of a wolf in a pack of wolves is an example of
statistical population.
sample size.
distribution.
mean.
15
The chance that an earthquake will occur in your town during the next year is an example of
distribution.
skepticism.
correlation.
risk.
16
The three final steps of the experimental method in their correct order are
draw conclusions, repeat experiments, communicate results.
repeating experiments, communicating results,draw conclusion
observing, hypothesizing, and drawing conclusions.
drawing conclusions, analyzing data, and repeat experiments
17
An aesthetic value is...
what is beautiful and pleasing
the maintenance of human health
the protection of resources
understanding the world
18
you are considering an economic value when you ask which of the following questions?
How many jobs will building the dam generate?
Will building the dam destroy natural resources?
Will the dam provide new leisure activities?
Is it right to build a dam here?
19
A model of a dinosaur is an example of a _____ model.
conceptual
mathematical
graphical
physical
20
To fully understand a complex envrionmental issue, you may need to consider...
economics.
scientific information.
values.
all of the above.
21
Curiosity and imagination are important in science because they are
abilities in scientists that help expand our knowledge.
None of the above
skills needed to organize and analyze data.
models that represent objects and systems in the environment
22
A good hypothesis is more than a guess because it
Both (b) and (c)
states what is likely to happen.
makes logical sense.
is based on intuition rather than observation.
23
Reading scientific reports is an example of...
gathering information.
gathering information.
assessing risk.
considering values.
24
An environmental value is...
the protection of natural resources.
what is right or wrong.
understanding the world.
the gain or loss of jobs.
25
Scientists use statistics to
analyze data.
graph data.
communicate ideas to each other.
All of the above

Chapter 2 Tools of Environmental Science Flashcards | StudBud