CHECK YOUR UNDERSTANDING
The scientific process includes:
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Which of the following is NOT true about the Montreal Protocol?
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The statement “It is wrong to inflict pain on animals” is not scientifically testable because it is not _______ by any demonstration of empirical evidence.
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What is the relationship between CFCs and ozone in the stratosphere?
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Data gathered via objective observation of physical phenomena is:
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In an experiment to study the effects of UV-B on leopard frogs, an effective control is:
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WORK WITH IDEAS
What is science? Describe the key elements of science and apply this framework to show how the story of CFCs and stratospheric ozone depletion is science.
What is a correlation in science? How is it different from a cause-and-effect relationship? Explain how both types of data relationships are used to understand the connection between CFCs and stratospheric ozone.
What are the differences between observational and experimental studies? Under what circumstances is each of these types of studies useful?
Define scientific hypothesis and explain how it differs from a scientific theory and the more general use of the word theory by lay people.
Describe the chemistry of ozone formation and breakdown in the stratosphere and explain how chemicals like CFCs interfere with this process. Explain why the chemistry of CFCs makes them so dangerous.
Why is the Montreal Protocol considered the most successful international environmental agreement in history? Explain what makes this treaty so successful and discuss the possible underlying reasons for this success.