Tomorrow I have to give a [high school] class presentation on a topic of the solar system. I have thought of the Sun, as I have always believed it to be the central part of the Solar System. So I am asking here, is there any creative ideas that I can present? I do not want to make an speech and plainly read out the Wikipedia page. So, are there any ideas, like I thought of telling how we came to measure the distance between Earth and Sun. Is that possible to explain it to high school students, if so, where I can find more information regarding it? Are there such questions, facts, which I can present, preferably if there are some very simple demonstrations or pre-calculus maths involved?