Presentation on theme: "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."— Presentation transcript:
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) 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
Question Scientific questions-testable Iv & DV included
Research Reliable sources Adequate number of sources
Hypothesis Prediction of the expected outcome of the investigation Based on research (educated guess) If (IV), then (DV), because (research).
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
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 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.) 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 Experimental Plan
Materials list—after the step-by-step procedure has been written, a detailed materials list must be created Experimental Plan
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
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
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
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
Communicate Communication is last step of scientific method