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What is Science?

What is Science?. What is science?. Science is an organized way of using evidence to learn about the natural world The word science also refers to the body of knowledge that scientists have built up after years of using this process. Goal of Science.

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What is Science?

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  1. What is Science?

  2. What is science? • Science is an organized way of using evidence to learn about the natural world • The word science also refers to the body of knowledge that scientists have built up after years of using this process

  3. Goal of Science • 1. To investigate and understand the natural world. • 2. To explain events in the natural world. • 3. To use those explanations to make useful predictions.

  4. Think like a scientist • Scientific thinking usually begins with observation—the process of gathering information about events or processes in a careful, orderly way. • Data—the information gathered from observations.

  5. Observation • Observation generally involves using the senses, particularly sight and hearing

  6. Types of Data • Quantitative—expressed as numbers, obtained by counting or measuring. • Dog as a 3 inch scar on its nose. • Flower has 120 petals • Qualitative—Descriptive and involve characteristics that can’t usually be counted. • Scar appears to be old • Animal seems healthy and alert

  7. Use for data • Inference—a logical interpretation based on prior knowledge or experience (Qualitative). • Facts—undisputable (Quantitative). • Hypothesis—proposed scientific explanation for a set of observations. • Generated using prior knowledge • Logical inference • Informed, creative imagination • Must be proposed in a way that enables them to be tested. • Is not a guess!!!

  8. Way of Knowing • Science is an ongoing process—not an unchanging set of truths • Good scientists are skeptics— questions both existing ideas and new hypotheses. • Biologists focus on living systems, which range from invisibly small to the size of our entire planet.

  9. Picture Credits • http://www.leetsoftware.com/screenshots/nature3.jpg • http://www.teara.govt.nz/NR/rdonlyres/FE35256C-5518-4C3B-90C8-71908DED1715/202529/hero7944.jpg • http://www.ihs.gov/MedicalPrograms/PortlandInjury/otherimages/data.jpg • http://www.lla.de/en/images/stories/applikationen/lebensmittel/mehlanalytik/mehl_wellen.jpg • http://yourhealthypetsonline.com/images/69846-61213/dog1.jpg • http://www.getreligion.org/wp-content/photos/hypothesis.gif • http://www.ucl.ac.uk/biology/alumni/pupa.jpg

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