Lab1ScientificMethod

Lab1ScientificMethod - 1. BASIC BIOLOGICAL CONCEPTS...

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9.09 1-1 1. BASIC BIOLOGICAL CONCEPTS I NTRODUCTION The word biology means "the study of life." A good place to begin the "study of life" is by mastering a set of fundamental, organizing ideas about life and scientific study of life forms. The purpose of today's lab is to introduce you to these concepts and some key vocabulary words. There are several displays for you to examine, and questions to answer about what you observe. The displays cover four fundamental biological concepts: 1. Scientific Method 2. Can life arise from non-living matter? 3. Characteristics of Life 4. Classification of Life Forms There are two fundamental questions often raised in the beginning of a biology course: How do we know if something is alive? Can life arise spontaneously if conditions are favorable? This lab will provide some insights into these questions, and apply the scientific method to answer these and a myriad of other questions about living organisms. C ONCEPT D ISPLAYS These displays can be examined in any order. You should work with a small team of fellow students, as directed by your instructor. The information needed to answer the questions posed in your lab manual can be obtained from several sources: the display boards, the text in this lab document, your previous life experiences, and the use of logic! By the end of the lab you should have answered all the questions in this first chapter of your lab manual. http://www.nearingzero.net/Nearing %20Zero%20use%20rates.pdf
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9.09 1-2 C ONCEPT D ISPLAY 1 Scientific Method Science is not merely a collection of facts, but rather a dynamic process, a way of knowing about our world. The first step in this way of knowing is making an observation , which is followed by questions , formation of a hypothesis that suggests a possible explanation of the observations or answers the questions, and an experiment to test the hypothesis. Experiments are usually designed with at least two different treatments, an experimental treatment and a control treatment. For the experimental treatment or group, the scientist alters one aspect of the conditions, called the experimental variable . The control group is the unaltered treatment that is used as a comparison for the experimental treatment. By comparing the results from the experimental and control treatments, the researcher can discern the impact of the experimental variable. The final step is to draw a conclusion about the validity of the hypothesis using these results. These steps in the scientific method limit the realm of science to natural phenomena that can be observed and tested. I. Practicing the Scientific Method The scientific method can be used to examine any aspect of natural phenomena. In order to better understand these principles and ideas, we are going to go through the steps from observation to conclusion, focusing on microorganisms – microscopic organisms that include bacteria, most unicellular, and tiny organisms. 1. Regarding microorganisms, what patterns have you either observed or heard stated?
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This note was uploaded on 12/21/2010 for the course BIO 10 taught by Professor Fautley during the Fall '08 term at Santa Rosa.

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Lab1ScientificMethod - 1. BASIC BIOLOGICAL CONCEPTS...

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