You could do something like Which type of dance shoe prevents slipping best (bear foot, dance paws/ foot undeez, jazz shoes, tap shoes, ballet shoes, pointe shoes, etc.)? Or maybe How does the temp in the room affect a dancer's heart rate? Or What makes your heart rate go up the most (moving exercise, immobile exercise, dance, singing, watching a suspenseful movie, fear, etc)? I hope this helps! Yeah I've been doing some looking as well!
Does the tempo or beat of a music make a difference on the effect of a person's mood? The dance steps?
You could do what shoes are the most slippery, how much strength dancers need to do a certain move. Or what muscles tighten or loosen,or why flexibility is an important part of dance.
Maybe you could make types of rozen and see which one makes you slip the least
Pretty much anything can be turned into a science project. Your question/hypothesis will determine the project... There may be no previously thought of dance science projects but what about anything you can measure.... You'll have to interview. What is the average time from soft shoe to toes (ballet)? Or; Does ballet, tap, or jazz dance increase/sustain a persons heart rate the fastest/longest? Forgive me... I'm thinking out loud so you'll need to pick a topic/question that suits you. Which dance movement requires the most endurance? ETC.
Good Luck! Your Science teacher should help you. Just tell 'em what interests you.
You could do something on balance ,muscle tone ,or anything else that your body uses while dancing.
Well, you could really do anything involving dance. You could see how much liquid a dancer takes in...
Any muscles or ect. That you use while dancing. Um... If certain kinds of shoes help you get higher off the floor. I don't know