Presentation on theme: "Scientific Method What is the Scientific Method?"— Presentation transcript:
1 Scientific Method What is the Scientific Method? Steps to Solving a problemObserve a ProblemResearch the ProblemExperimentCollect DataDraw a Conclusion
2 Define/State the Problem Based on ObservationsInclude your 5 senses: Touch,smell,taste,sight,hear
3 Hypothesis Educated Guess Based on Observations, Inferences, and Previous knowledgeA hypothesis is written BEFORE the experiment!
4 ExperimentControl Group: Part of experiment that is not changed! All conditions are kept the sameExperimental Group: All conditions kept the same except one condition!
5 Experiment Variable: the 1 condition that is changed! There is only 1 variable in an experiment!
6 DataDependant Variable: Condition that results from the independent variable.Independent Variable: The condition that is changed. Variable that affects the outcome of the experiment.Example: Rainfall - month
7 Conclusion Collect Data to prove or disprove your hypothesis. Graph or TablesIf positive result – repeatIf negative result – make new hypothesis and test over.
8 Theory/Law Theory: Well tested hypothesis Law: Fact When does a hypothesis become a theory? When it is proven many times.
9 Popcorn ProblemAlice accidentally put the jar of popcorn kernels in the freezer. She usually keeps the kernels at room temperature. Alice observed that when she popped the frozed popcorn kernels, they seemed to pop more popcorn.
10 Popcorn Problem State the problem: Does frozen popcorn pop more? What was the observation made?Frozen popcorn seemed to pop more.Form a Hypothesis:If you freeze popcorn then the popcorn will pop more.
11 Popcorn Problem Control: Popcorn at room temp. Variable Popcorn in the freezerConstants:Same popcorn, same amount of time, same amount of popcorn, exp. Date, temp.
12 Popcorn Problem Data: Trial # of kernels popped @ room temp @ of kernels popped in freezer11231292115126312013541251405130144
13 Popcorn Problem How could we show our data in picture form? Dependant Variable?Amount PoppedIndependent Variable?Frozen Popcorn