The scientific method.

The scientific method.

1. Scientifics

   • Make Observations & Inferences, support ideas with evidence, don't make assumptions
     • Obsarvation: information collected using the five senses and/or scientific tools.
     • Inference: conclusions or deductions based on observations.
     • Evidence: Support for the idea that something is true.

2. Specific steps used by scientists to carry out an experiment

3. 1.Define a Problem: something that needs to be solved, written as a question.

   • 2. Research: gather information related to your problem.
     • 3. Formulate a Hypothesis: an educated guess based upon your research, written as an “if…then…” statement.
       • 4. Experiment: procedure used to test the hypothesis. only one variable can be tested/changed at a time; everything else must be constant.
         • Control Group: does not receive the treatment, used for comparison
         • Experimental Group: gets the treatment you are testing, drug, Amount of sunlight
         • Sample size: The number of “things” included in each group
         • Independent Variable: what the scientist controls, changes, tests.
         • Dependent Variable: changes due to the independent variable
         • 5. Results / Data: written records of observations, organized in charts and graphs to easily observe trends.
           • 6. Conclusion: state if hypothesis was supported or refuted, explanation of the results
             • 7. Repeat: test hypothesis again using the same scientific method to ensure your conclusion is valid/reliable.

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