I have a project for you, since I know practical physics is pretty popular around here. This one involves orbital dynamics, optics, and astronomy. The required experimental apparatus is just your eyes, a clock, and an internet connection.
There are these satellites orbiting overhead by the name of the Iridium constellation, working diligently to provide various communications services to its customers. We’re not so interested in that. What we are interested in is the fact that these satellites have highly reflective mirror-like antennas which reflect sunlight down to the earth. With a little geometry done for you automatically online, you can predict exactly when these beams of reflected sunlight will intersect your position. Some of them are bright, in some cases many times brighter than the brightest stars. All you have to do is input your position, set your watch to the next flare, and walk outside to see it.
It seems pretty trivial, but it’s quite a demonstration of the power of physics that such an event can seem trivial in the first place. Give it a shot, I promise it’s really cool.