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Published byBonnie Weaver Modified over 9 years ago
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What is your Objective? THE PROBLEM Curiosity???????? ???????? Observation is a key element here!!!
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RESEARCH Gather Information Get some Background about the topic
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THE HYPOTHESIS What is a HYPOTHESIS? They can never be completely proven…..but one single experiment can disprove it. IT IS A PREDICTION!! A POSSIBLE EXPLANATION FOR THE OBSERVED SET OF FACTS in the form of a statement.
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Time to Experiment!!! Plan the design of your Experiment. Consider the following………
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Is it a Controlled Experiment or Field Experiment?? Both Types will have Variables that need to be looked at. Independent Variable Dependent Variable Control group Constants
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DEPENDENT VARIABLE (Responding Variable) The One You Measure as a result of the changing Independent variable (the data)
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INDEPENDENT VARIABLE (Manipulated Variable) The one you will vary to see how it may affect the dependent variable
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To do a Fair Test (Controlled Experiment) and Obtain a Valid Conclusion you need to……… KEEP ALL VARIABLES CONSTANT, EXCEPT FOR THE INDEPENDENT VARIABLE. Examples: amount of sunlight, species of plant, amount of water
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OTHER FACTORS TO CONSIDER WHEN EXPERIMENTING……. How many individuals will you test? How many trials? What outside environmental factors do you need to keep constant? Safety precautions.
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Conduct the Experiment A Experimental Group will be the group with the Independent Variable: In this example, the plants receiving the fertilizer. A Control Group will be the group without the Independent Variable In this example, the plants receiving water only A control group is for comparison.
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GATHERING DATA Make a data table Label the sections of your table. Always put in the correct units given or being used # of Days Height of First Plant Height of Second Plant 15 cm3cm 28cm7 cm 316cm12 cm
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RESULTS Always Title graph and label the X and Y axis. What are the Independent and Dependent Variables in this experiment?
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Accept or Reject your Hypothesis (Meaning: was your hypothesis supported?) What were the sources of error? What patterns did you observe? WHAT WOULD YOU PUT IN YOUR CONCLUSION?
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NOW WHAT???? REPEAT, REPEAT, REPEAT!!!!!
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What else do you have to add to the Scientific Method to make it a Lab Report??? The Parts of a Lab Report are: Title Hypothesis Problem (Question to test) Materials Procedure (Methods used) Data Results (Graph) Discussion and Conclusions
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