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Published byBethanie Rice Modified over 9 years ago
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What is Science? Scientific Inquiry
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The diverse ways in which scientists study the natural world and propose explanations based on the evidence they gather.
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Scientific Inquiry The process of finding answers to problems by means of asking questions. The first step in getting the scientific method process started.
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The SCIENTIFIC METHOD is a problem solving method used to find answers to scientific questions.
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There are 6 steps to the scientific method: 1.State the question/problem. 2.Collect information. 3.Make a hypothesis. 4.Perform an experiment. 5.Record and study data. 6. Draw a conclusion.
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Every good scientist knows that they must REPEAT THEIR WORK in order to be sure that the results of their experiment are precise and accurate. What scientific attitude must a scientist possess in order to develop questions to study? CURIOUSITY
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Hypothesis A possible explanation for a set of observations or answer to a scientific question. An EDUCATED guess.
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A hypothesis must be testable. What does this mean? Researchers must be able to carry out investigations and gather evidence that will either support or disprove the hypothesis.
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Independent/Manipulated Variable The one variable that is purposely changed to test the hypothesis. Researcher is in control of this variable. Independent variable is on the x-axis of a graph.
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What was the independent variable in the rose lab? The type of water in which the rose was placed. (sugar, neutral, or salt)
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Dependent/Responding Variable The factor that may change in response to the manipulated variable. Cannot be controlled by the researcher. Dependent Variable is found on the y-axis.
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What is the dependent variable in the rose lab? The condition of the roses!
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Controlled Experiment An experiment in which only one variable is manipulated at a time.
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Was the rose lab a controlled experiment? YES!!!!
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Operational Definitions A statement that describes how to measure a particular variable or define a particular term.
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Data Facts, figures, and other evidence gathered through observations. Can be displayed in charts, tables, and graphs.
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Re-write the class data collected about favorite candy bars. Snickers Milky Way 3 Musketeers Hershey’s Reese’s Peanut Butter Cup
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Communicating The sharing of ideas and experimental findings with others through writing and speaking.
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What are 3 ways scientists can communicate with one another? Scientific journals and articles Scientific meetings Internet
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Scientific Theory A well-tested explanation for a wide range of observations. Modern Atomic Theory Big Bang Theory Plate Tectonic Theory
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Scientific Law A statement that describes what scientists expect to happen every time under a particular set of conditions. Newtons’ Laws of Motion Gravity
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How do scientific theories and scientific laws differ? Unlike a theory, a scientific law describes an observed pattern in nature without attempting to explain it! See example of gravity on next slide…
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Are there any questions?
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