The contest required Mill Chase, Farnham Heath End School and Weydon School to make presentations on the topic A significant anniversary - then and now: Consider the impact of an event that may be commemorated in 2019.
A panel of judges asked participants to identify and research a line of enquiry, showing evidence of teamwork and in-depth investigation.
Mill Chase chose the development of the 190-year-old Metropolitan Police Force, which had just celebrated a century of employing female officers.
The judges were impressed with their research, which included an email exchange with Metropolitan Police Commissioner Cressida Dick.
The team produced a folder showing use of a wide range of source material, and members dealt ably with questions from the panel.