Submission + - College Majors and the Jobs They Lead To (sciencemag.org)
Some of the insights are startling. Only about a fifth (to perhaps a fourth) of physical science majors end up working in any scientific or technical field, and fewer than 10% of physical science majors work in the physical sciences. And only about an eighth of all graduates in the broad category of biological, agricultural, and environmental scientists end up working in fields related to science, engineering, and technology.