Pretty much they give you a topic that can be researched on nasa.gov
Like on one of the practice tests, I had to find some successfull Apollo mision stats, and plot them, such as the launch date, how close they got to the moon, or weither they were successfull or not. But you have to chart it in a specific format, like line graph or line on two axis. Also there will be five short-answer questions.
You really can't study for this event, so all you can really do is practice. Read through the rulles several times, and before long you'll be great at it!
