This sounds like fun.

You will be given a maximum of 3 minutes in which to impress the judges. They are looking for exciting and engaging talks that can be understood by a general public adult audience. Props are allowed but there is no set up time or assistance. PowerPoint presentations are not permitted…Successful contestants from the first round will go through to the regional final later in the day. For this you will need to present a different 3 minute talk to the judges and a public audience. This presentation can be on the same topic, but must be a different talk. The judges will be able to question you after each presentation and will also give you feedback where possible…At the heats you only have 3 minutes to impress the judges by giving an entertaining and original talk that is scientifically accurate but also engaging to a non-scientific audience. The judges are looking for three qualities: content, clarity and charisma. So make sure your subject matter is well chosen, and clearly put across, that your facts are right, and that you let your passion for your subject shine through!