But I can think of one, “How does the speed that you’re hitting the guitar strings affect the volume of the sound?” But, the volumes of sounds have like special names when it comes to music. I think it’s like “forte”= loud, “piano”= soft, and etc.

Well, I hope this helps. I’m no expert at guitars. I’m trying to teach myself, but I’ve been singing since I was 5 and instruments aren’t really my thing. Anyway, good luck at the science fair (I’m not a fan of them, myself).

And if it’s not too much trouble, can you answer my science fair question if possible? Thanks! It’s right below yours.