The Siemens Science & Technology competition gives students an opportunity to achieve national recognition for science research projects that they complete in high school. The competition is administered by The College Board and funded by the Siemens Foundation.There are phases of competition from the regional to national level. Students may enter as individuals or as part of a team. The top individual and top team each receive $100,000 scholarships. Runners up receive scholarships ranging from $10,000 to $50,000.

Here is an essay by a 2005-06 participant that clearly explains the competition stages and events.