SKILLS

Are you knowledgeable about the experiment itself--did you design it and perform the experiments? Having a good command of the technical aspects of your project reflects very well on you. Know what you're talking about, and know your experimental data, but also know the ins and outs of the experimental apparatus.

DATA

Was your data collection scientifically professional? Be sure to use a journal to record data from the experiment. This demonstrates organization. Did you repeat the experiment? Repetition lends much more reliability to your data. Repeat it if you can.

INTERPRETATION

Is your use of tables and graphs helpful to the judges in understanding your data? Did you use the tables and graphs correctly and collect enough data to reach a reliable conclusion? Make sure that you are confident in your final numbers. Science is all about proof.