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Environmental Science

Lesson Guide

Chapter 2 – Section 1 - 3

Section 1 – Scientific Methods

Key Terms: Define

a. Observation -

b. Hypothesis -

c. Variable -

d. Experimental group -

e. Control group -

Questions to Answer:

1. Describe why a good hypothesis is not just a guess.

2. Explain the importance of curiosity and imagination IN SCIENCE.

3. What observation prompted students at Keene High School to form a hypothesis about the Ashuelot River?

4. Where did they perform their experiment?

5. According to table 1 what kind of results did they get? What type of graph did they use?

6. What scientific method was used to determine what happened to the first settlers in Roanoke Va.?

7. What is Jane Goodall famous for?

8. How did drawing a map of London help John Snow solve the cholera Problem in 1854?

Section 2 – Statistics and Models

1. What is statistics?

2. In figure 9 how many mussels were found to be between 35 and 40 mm long?

3. Complete the “math practice” probability problem on page 42.

4. What is risk?

5. What is the combined pollution that results from ship maintenance, big spills and offshore drilling?

6. Explain why sample size is important in determining probability.

7. Explain what “the mean number of weeds in three plots of land” means.

8. Describe the four types of models used by scientists..

Section 3 – Making Informed Decisions

1. Copy Table 3

2. Write out the decision making model

3. Describe two situations where environmental values come into conflict with other values.

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