I need some ideas for high school science projects. It doesnt really matter what field of science, but i would prefer chemistry, biology, or physics. Really Urgent! Thanks!

What about a project on osmotic pressure. Put a salt solution inside a thistle tube, place a membrane over the top, invert it into a water solution that has coloring agent of some kind. The colored solution should go through the membrane and make the level of liquid inside the thistle tube move upward. I hope this helps get you started.

Because I'm homeschooled, I don't have access to alot of lab equipment so I can't really do this experiment(it's a great idea though), do you have any other ideas?

http://www.energyquest.ca.gov/projects/index.html

http://www.all-science-fair-projects.com/

Thanks, I'll try these sites!