Biology in the 21st Century

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Presentation transcript:

Biology in the 21st Century SECTION 1.3 SCIENTIFIC THINKING AND PROCESSES Power Notes Biology in the 21st Century CHAPTER 1 Observing Evaluating results Forming hypotheses Analyzing data Testing hypotheses Experiment Copyright © McDougal Littell/Houghton Mifflin Company. Independent variables Dependent variables Constants Theory: Unit 1 Resource Book McDougal Littell Biology Power Notes 11

KEY CONCEPT Science is a way of thinking, questioning, and gathering evidence.

Like all science, biology is a process of inquiry. Scientists make careful and systematic observations. Scientists record observations as data. Scientists form a hypothesis as a possible answer to a     question. Scientists test their hypotheses and analyze their data.

Biologists use experiments to test hypotheses. Observational studies allow scientists to describe a phenomenon.

Experimentals allow scientists to determine what causes a phenomenon.

Experimental studies allow scientists to determine what causes a phenomenon. Independent variables are manipulated. Dependent variables are observed and measured. Constants are conditions that are kept the same.

A theory explains a wide range of observations. Theories explain a wide range of observations and experimental results. A theory is supported by a wide range of scientific evidence. Theories can change based on new evidence.

The Scientific Method by Teachers Pet https://www.youtube.com/watch?v=SMGRe824kak

Turn to page 17 of the textbook Complete questions 1-4. Use sentences. Hints: restate the question in your answer Never use they, it , he , she without identifying first (this is called identifying the antecedent) Check spelling, especially of vocabulary words USE vocabulary words in your answer.

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