Using the Scientific Method

1. Decide exactly what the question or problem is and state it clearly.
   
   
2. Study the facts to see how they relate to the problem.
   
   
3. Form a hypotheses.
   
   
4. Do the experiment. Try to identify possible hazards and then find ways to run the experiment safely.
   
   • Design the experiment to provide reasonable assurance that the research objectives have been met.
   • Identify all significant variables affecting the experimental results.
   • Be sure to control those significant variables not manipulated as part of the experiment.
   • Make sure to include a control group or a comparison group in your experiment.
     
     
5. Conduct the experiment.
   • Select ways to measure, observe, and record what happens at each step of the experiment.
   • Use of the metric system is required in all measurements when appropriate.
     
     
6. Estimate experimental error.
   • Experimental error can be as simple as correctly recognizing how accurate the tools used for measurement were for the experiment.
   • A second simple way that experimental error can be expressed is to recognize that sample size or multiple trials increase the accuracy of the data collected.
   • The following statistical analysis will also reflect experimental error:
     • Standard deviation
     • Chi squared
     • T Test
     • Paired T’s
     
     
     
7. Form a conclusion. A conclusion should answer the question asked in the purpose. Make sure the conclusion accurately reflects the data collected.