Physics term project? ideas?

guys im in physics grade 12 level class and i need to do a term project it is worth 25% of my course, im trying to find ideas but i cant find a good experiment. can you guys give me some ideas, a term project could be anything that is in the field of science, especially physics, like something to do with gravity or heat , or energy etc... if you can please give me a link to the information about the experiment...