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Inquiry Test

Inquiry Test. “What do I need to study?” asked the curious student. “Well, everything that we have covered so far.” replied the wonderful science teacher. Observations and Inferences. Observations --5 senses Two classifications of observations Quantitative (5 senses and/or tools with #’s)

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Inquiry Test

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  1. Inquiry Test “What do I need to study?” asked the curious student. “Well, everything that we have covered so far.” replied the wonderful science teacher.

  2. Observations and Inferences • Observations--5 senses • Two classifications of observations • Quantitative (5 senses and/or tools with #’s) • Qualitative (only the 5 senses and words) • Inferences—guesses about what observations mean; an explanation or interpretation of an observation based on prior experiences or supported • Logical • Can be more than on explanation • Must do additional research to determine actual cause

  3. Question • Scientific questions-testable • Iv & DV included

  4. Research • Reliable sources • Adequate number of sources

  5. Hypothesis • Prediction of the expected outcome of the investigation • Based on research (educated guess) • If (IV), then (DV), because (research).

  6. Experimental Plan • Identify variables • IV—cause, manipulated variable, input, variable changed on purpose by the investigator, graphed on x-axis • DV—effect, response, responding variable, output, changes in response to the change in the IV, graphed on the y-axis • Controlled variables (constants)—variables that must be kept constant so that they don’t affect the outcome of the investigation MIX DRY

  7. Experimental Plan • Step-by-step procedure • Plan for controlling variables (constants) • Plan for control group and experimental groups • Plan for appropriate tools to be used correctly and accurately each time • Plan for repeated trials • Plan for adequate sample size • Plan for safety

  8. Experimental Plan • Step-by-step procedure • Plan for accurate measurements • Plan to measure at least twice each and every time you take measurements of any kind • Plan for gathering, recording, and organizing data (charts, tables, etc.)

  9. Experimental Plan • Plan for analyzing data (graphs, patterns, relationships, mean, median, mode, etc.) • Bar graph-when both qualitative and quantitative data are gathered • Line graph-when quantitative data is gathered, change over time is always graphed on a line graph

  10. Experimental Plan • Materials list—after the step-by-step procedure has been written, a detailed materials list must be created

  11. Gather Data • Conduct the experiment and gather data in the chart of table that you have planned for in the step-by-step procedure/experimental plan • Gather data from at least three trials • Gather data from an adequate number of samples in each group

  12. Analyze Data • Graph data and look for patterns/relationships between the IV and DV • If the IV and DV are both increasing=direct proportion, direct relationship, positive relationship • If the IV and DV are both decreasing=same • If the IV is increasing and DV variable is decreasing=inverse proportion/inverse relationship, negative relationship

  13. Analyze Data • Graph data and look for patterns/relationships between the IV and DV • If the points on the graph are scattered all over the place=no relationship

  14. Conclude • Conclusion must include: • Restate the hypothesis • State whether or not the results support the hypothesis • Explain how you know whether the results support the hypothesis or not

  15. Communicate • Communication is last step of scientific method

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