The presence of different types of charts and graphs on the display board at the science fair exhibition help the judges understand just how much effort you have put into your science fair project. That does not mean that you can just pick out any odd charts at random, they must be related to your project.

The best thing to do is to use the data that you have collected in your journal over the period that you built the science fair project to make your own charts and graphs. You can make charts with visuals of how the experiment worked out. You can use your hypothesis to cover one chart as well. Use any visually appealing diagram for the charts.

You will have to be a bit more careful when it comes to the graphs. Different types of graphs are used to represent different kind of data. For instance – A bar graph is used when compare quantities. A line graph can be used to show progress of individual parts of the experiment over a specific time frame. Then a circle graph to show parts of a whole. Charts and graphs help organize your data and present it in an easy to understand manner for the science fair judges.