Duplicate of Tools of Environmental Science - Ch.2 Rvw

Question 1

In a scientific investigation, the number of objects or events being sampled should be

Accepted Answer

large so the whole population can be estimated

Question 2

Why are mathematical models important?

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all of these explain why mathematical models are important

Question 3

Maps and charts are examples of

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graphical models

Question 4

A model that shows the correlation between the componenets of a system is a

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conceptual model

Question 5

If you are building a dam, what is an example of a question that addresses an economic value?

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How many jobs will building the dam create?

Question 6

A group of similar things that a scientist is interested in learning about is

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a statistical population

Question 7

The chance that an earthquake will occur in St. Elizabeth this year is an example of a

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risk

Question 8

This consists of a series of steps used by scientists to identify and answer questions .

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scientific method

Question 9

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

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control group

Question 10

The average mass of a penguin in a colony is an example of

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mean

Question 11

This is a testable explanation for an observation.

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hypothesis

Question 12

The group that receives the experimental variable is called the

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experimental group

Question 13

When it's unethical or impossible to conduct experiments, scientists test by examining

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correlations

Question 14

These could be positive or negative and must be explored before making a decision.

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consequences

Question 15

Information gathered by using the senses is known as

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an observation

Question 16

This group does not receive the variable in an experiment.

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control group

Question 17

What is the first thing you should do when making a decision?

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gather information

Question 18

Considering what will add to our understanding of the natural world when making a decision...

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considers a scientific value

Question 19

This is a systematic process you can use to help you make decisions about environmental issues.

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decision-making model

Question 20

Before you can make a decision using a decision-making model, what step must you take?

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all of these must be done

Question 21

Three-dimensional models you can touch are referred to as

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physical models

Question 22

A good hypothesis is more than a guess because it

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follows from what you know, is testable, makes logical sense

Question 23

The final steps of the experimental method in their usual order are

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draw conclusions-repeat experiment-communicate results

Question 24

What essential characteristics does a good experiment have?

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B and C

Question 25

What step in the decision-making model are you taking when you consider a possible outcome?

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exploring consequences

Question 26

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

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statistics

Question 27

Which step in the experimental method are scientists conducting when they photograph whales?

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observing

Question 28

Scientists use statistics to

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analyze data

Question 29

Curiosity and imagination are important in science because they are

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abilities in scientists that help expand our knowledge

Question 30

Which of the following correctly lists the steps of the experimental method in order?

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observe-hypothesize-predict-experiment-communicate results

Question 31

This can explain a natural event or process & reliably predict what might happen in the future.

Accepted Answer

theory

Question 32

the factor of interest in an experiment is called the

Accepted Answer

variable

Duplicate of Tools of Environmental Science - Ch.2 Rvw

Questions 32

Duplicate of Tools of Environmental Science - Ch.2 Rvw

Questions 32