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Nothing in science can be 100 what can we do in

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Nothing in science can be 100% _____________. What can we do in science in order to increase the certainty of our observations? Mars Based upon these images, how did we increase the accuracy of our observations? Closure Why is Science Tentative? III. Scientific Method A. Observation 1. The use of the __________ to gather and record information (data) 2. two types quantitative - qualitative -
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Observations Question/Problem Hypothesis Prediction Test (experiment or additional observation) B. Scientific Method Test does not support hypothesis (hypothesis is rejected); revise hypothesis or pose and test a new one Test supports hypothesis; repeat the procedure to test for consistency and test additional predictions based upon the hypothesis C. Features of a Good Hypothesis It offers an ____________ for an observation It refers to only _____ independent variable It is written as a definite statement and _______ as a question It is _____________ by experimentation C. Features of a Good Hypothesis It is based on _____________ and __________ knowledge of the system It leads to ________________ about the system Closure How does the common meaning of the words fact, law, and theory differ when used within a scientific context Identify the steps of the scientific method IV. Experiments A. Experimental Components What are the key components of a good experiment? Controlled Experiment An experiment that tests the effect of a ___________ variable controls ______ variables that could affect the outcome ___________ Sample size ___________ trials
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B. Controlled Experiment Features of a controlled experiment Comparison Groups Experimental group Group that contains the _________ in the (independent) variable that we are testing Control Group Group under _____________ conditions Base-line group B. Controlled Experiment Three types of variables Independent Variable (manipulated variable) the only variable that changes between the control & experimental groups The variable that causes a _____________ in another variable B. Controlled Experiment Dependent Variable (responding variable) The result being analyzed in the experiment This variable changes due to a change in the _________________ variable B. Controlled Experiment Control Variable -
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