The Fair is open to kindergarten through sixth grade students who have already won the science fair grade-level competition at their own school.
Registration is handled by the school.
The fair provides young scientists an opportunity to showcase their science projects and to see what other young scientists have been investigating. The projects are judged by teams of Brookhaven scientists and local elementary school teachers. In addition, First Prize ribbons are given, and a large banner is given to the school of the first-place winners. Honorable mention ribbons are also given.