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Flashcards in Tools of Environmental Science Deck (33)
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1

testable explanation for an observation

hypothesis

2

information gathered during an experiment

observation

3

information gathered by using sight, hearing, smell, and touch

probability

4

principles or standards we consider important

data

5

verbal or graphical explanation for how a system works or is organized

statistics

6

collection and classification of data in the form of numbers

experiment

7

association used to study a subject when using an experiment is impossible or unethical

correlation

8

procedure for testing a hypothesis under controlled conditions

conceptual model

9

chance of something happening

prediction

10

logical statement about what will happen if a hypothesis is correct

value

11

What essential characteristic does a good experiment have?

A single variable is tested and a control is used.

12

Why are mathematical models important?

They are especially useful in situations with many variables.

13

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

mean

14

A model of a dinosaur is an example of a _____ model

physical

15

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

risk

16

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

Gather information, consider which values apply to the issue, and explore the consequences of each option.

17

If you consider what will protect our natural resources when making an environmental decision, you are examining a(n)________ value.

environmental

18

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

The population of the endangered species increases

19

In a scientific investigation, it is important that the number of objects or events being sampled be

large enough to give an accurate estimate for the whole population.

20

A good hypothesis is more than a guess because it

makes logical sense

21

A method consisting of a series of steps that scientists worldwide use to identify and answer questions.

Experimental Method

22

The factor being tested in an experiment.

variable

23

The group that receives the experimental treatment in an experiment.

experimental group

24

The group that does not receive the experiment treatment in an experiment.

control group

25

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

statistical population

26

The relative arrangement of the members of a statistical population.

distribution

27

A bell-shaped curve indicates a

normal distribution

28

A group of individuals or events selected to represent the population.

sample

29

Representations of objects or systems.

models

30

Three-dimensional models you can touch

physical models

31

Maps and charts are the most common examples

graphical models

32

One or more equations that represents the way a system or process works.

mathematical model

33

A conceptual model that provides a systematic process for making decisions.

decision-making model