Lab 1 - AnatomyAndPhysiology I Lab1 SireeshaTeegala...

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Anatomy And Physiology  Lab 1 Sireesha Teegala steegal@hunter.cuny.edu
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Scientific Method & Metrics
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The Scientific Method An approach used by scientists to investigate A logical, practical, reliable way of solving problems Has five major steps: observation, hypothesis, data collection, analysis, & reporting conclusions
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Observation Involves making an observation of some topic that a scientist intends to study Deciding on a problem to focus on
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Making a hypothesis After choosing a topic to study scientists decide upon a specific question to answer An unproven “guess” or explanation about whatever is being observed Must be testable Must be based on facts that are measurable… no psychics Must not be anthropomorphic
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Data Collection Qualitative observations-made using our senses(touch, smell, sight, etc.) Quantitative observations-precise measurements such as mass, volume, density, etc. Experiments- a procedure that describes how one factor affect another
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Data Collection Variable-any factor that can affect the experiments Independent variable-factors manipulated by scientist Dependent variable- “response variable” changes in response to independent variable Control- “normal” standard used to compare to experimental data Experiments must the done and large samples and must be easily repeated
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Data Analysis Data from experiments is “raw data” Gets manipulated to further analysis Mean-average Range-highest value –lowest Percentage- “per 100” 0.25*100=25% 5*100=500% 1.6 *100=160%
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Data Analysis Graphing-using x-axis and y-axis to plot data on a grid Makes it easy to observe trends in data
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Report Conclusions A straightforward description of the conclusions from your results Theory-when a hypothesis has been validated by many scientists Biological principle-a theory that is wildly applied to science
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The Metric System
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Lab 1 - AnatomyAndPhysiology I Lab1 SireeshaTeegala...

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