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1-1 What Is Science?
To answer the questions below electronically, click on the My Notes icon above.
1.  Key Concept What does science study?
2. What does it mean to describe a scientist as skeptical? Why is skepticism considered a valuable quality in a scientist?
3. What is the main difference between qualitative and quantitative observations?
4. What is a scientific hypothesis? In what two ways can a hypothesis be tested?
5. Is a scientific hypothesis accepted if there is no way to demonstrate that the hypothesis is wrong? Explain your answer.
6. Critical Thinking Making Judgments Suppose a community proposes a law to require the wearing of seatbelts in all moving vehicles. How could scientific research have an impact on the decision?


Making a Table

List the five main senses—vision, hearing, smell, taste, and touch—and give an example of an observation that you have made using each sense. Then, add at least one inference that could be made based on each observation.
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