Has anyone done a science project on sink holes?

Question

I need help with doing a project. I know I want to do it on sinkholes but dont know where to start.

Answer 1

No, I haven't.

Answer 2

First you need to define a sinkhole. What is it?

Then you need to discuss how and where they form. Look up karst topography or karst features.

Another good thing to touch on is how dangerous they can be and what needs to be done to avoid building on top of them.  

Answer 3

Yes, we lost three kids last year to projects on sink holes.