Sure, energy is big. You could do fuel cells/electrolyzers, current state of fusion energy, current state of fission energy, coal, oil, solar, wind, etc.
I'm assuming the phrase "can be found" does not imply that you need to find them?
Here's one: the application of robotic technology to science. Naturally, science has greatly influenced the development of robotics, but I would claim that a lot of that technology. like the computer, is now being thrown back at science in productive ways.
I'm assuming this project is at the high school level?