"Nothing in biology makes sense except in the light of evolution." Theodosius Dobzhansky
These days studying and teaching evolution in the U.S. is quite controversial. Here are some links to sites from the scientific community aimed to educate people about the basics, not only of evolutionary biology, but also what physics and chemistry teach us about the world.
The National Center for Science Education -The Science of Evolutionary Biology
The National Academy of Science's Science and Creationism Resource Site