Why are you looking at these effects?
What kind of 'rocks' are you interested in boiling and freezing? and why?
Please be careful boiling 'rocks'. Many commonly occuring rocks have arsenic, uranium, lead etc that can be harmful to your health.
This site may help you identify what type of rock you may have:
Although I know from experience that uranium ore is very hard to identify without a Giger counter. Your local fire department may be able to help you.
jdw7806 wrote:She want to do a project on what effect does freezing or boiling have on rocks. I'm looking for some examples.
Any help would be appreciated.