Experimental DesignA. What is the scientific method?The scientific method is a body of techniques for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge.
B. Reference Links
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C. Scientific Method Steps
D. Practicing the Scientific MethodExplored: 1) graphing, 2) identifying variables, 3) developing hypotheses, 4-5) designing a controlled experiment and 6) predicting results with a partner.
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E. Experimental DataPart 1: I was given data to make a graph, below. I used a Google spreadsheet to create a graph and I saved my image file to upload here. My graph demonstrates an inverse relationship between concentration of ethylene, mL/m^2 and time for maturation, days.
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F. VariablesPart 2: Potential environmental variables to consider:
G. HypothesisPart 3: I selected variable c from a list of environmental variables I developed with a partner.
I believe that sunlight may affect the growth of a variety of apple trees because I have observed Ethylene and seen that while the the concentration of ethylene increases the maturation decreases. If my hypothesis is true, I will see ethylene rise with sunlight and make it grow bigger and better, |
H. Control GroupPart 4: It is important to control variables in an experiment because,then is easier to find if your variable affects the experiment.
Control Group: A group of apple trees in a greenhouse (receiving an ideal amount sun). Experimental Group/s:
J. Expected ResultsPart 6: I would expect to see the concentration of Ethylene my rise because of the effect of sunlight because without the sun the plants wouldn't grow to be as strong as they are suppose to. If my hypothesis that the concentration of ethylene will affect the time for maturation is true, I will see ethylene grow as measured by the time of maturation.
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I. Experimental DesignExperimental Procedure
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