Hey! It's basically similar to an EPQ, where you undertake a project of whatever you want to look into, or use one of their prompts (if you see their website you can see that you can do lots of different kinds of projects, from experiments to science communication, and the full list of the prompts given, but again you can investigate whatever you want). You would have to spend around 70 hours on the project, so this would take a considerable amount of your time so as long as you are willing to put in the effort and find the project fascinating then it shouldn't be a problem! If you do think it might take a long time, then you can work in small groups and divide the tasks but make sure they are also willing to work till the end. This time includes planning the project, carrying out the project and reflecting on it at the end. For the mentor, I didn't have one but I would recommend one, but that doesn't mean you can't complete the project without one, it might be a bit harder depending on what you project is based on. For resources, it depends on what type of project it is and what you are investigating, because if its a research project then you may need access to lab equipment, but all you need would be access to a computer (as a basis, I just used my computer and iPad to conduct my science communications project).
If you would like me to tell you what I did, or have any more questions then feel free to ask!