LessonLesson ReviewVocabularyFill in the blank with the term that best completes the following sentences.1 is the systematic study of the

natural world.2 is often mistakenly

regarded as being based on science.3 is the

name for the observations and data on which a scientific explanation can be based.

Key Concepts4 Describe What are two things that

characterize the practice of science?

5 Sequence What are the three steps scientists take to evaluate a scientific explanation?

6 Describe What are six traits of a good scientific observer?

7 Justify Why is it good for scientists to be skeptical?

Critical ThinkingUse the table below to answer the following questions.

Characteristic Science Pseudoscience

Concerns the natural world

Explanations can sound logical

Results can always be tested by others

Explanations can be proven false

Allows personal opinions to be used as evidence

8 Assess Place an “x” in the appropriate box if the characteristic could describe science, pseudoscience, or both. What might this tell you about the relationship between science and pseudoscience?

9 Judge Good scientists use their imagination. What do you think is the difference between being imaginative in doing science and doing pseudoscience?

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Lesson Review Answers1. Science

2. Pseudoscience

3. Empirical evidence

4. Sample answer: Science is characterized by use of empirical evidence and community concensus.

5. Sample answer: They collect evidence, think logically about it, and run additional tests.

6. In Sample answer: Six traits of a good scientist are curiosity, creativity, skepticism, careful observation, logic, and objectivity.

7. Sample answer: Being skeptical is important because it means that they do not accept explanations unless they have been tested exten-sively.

8. Concerns the natural world, science/pseudoscience; Explanations can sound logical, science/pseudoscience; Results can always be tested by others, science; Explanations can be proven false, science; Allows personal opinions to be used as evidence, pseudoscience. Sample answer: Science and pseudoscience do share some of the same characteristics.

9. Sample answer: Using imagination in science is not the same as in pseudoscience. Just because a scientist is creative, doesn’t mean that he/she isn’t objective and relies on anything other than empirical evidence.

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Lesson 1 What Is Science?

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33Lesson 1 What Is Science?