Ciaron:

What you need to do is have a subject about your presentation – but think about what you want to do. One of the major uses of robotics is in the field of space exploration so it might be a good idea to describe about how Robotics has been used to explore Mars – the Mars Rovers would be a good place to start. Alternately you could describe the history of Robotics from the where the name came from then describe how Robots have been portrayed in Science Fiction and the real life alternatives some examples would be like this
Robbie the Robot in Forbidden Planet
The Robot in Lost in Space
The Drones in Silent Running
The Robots in Star Wars
The Cylons in Battlestar Galactica – the Original and the re-imaged versions
The Replicants in Bladerunner
The Terminator
- in Real life
The automated welders in car factories
Maze solving robots
Bomb defusing robots
Military attack Drones
Mars Rovers
Using these comparisons should make the presentation look good and the re-imaged Cylons look pretty cool. I include some sites I googled up that should give you more ideas like on core robotics technologies like manipulation, locomotion, and control, and on related research areas, including machine learning, computer vision, and graphics.