Why do people say that Engineering major is a "GPA killer"?

<p>@himom You can take classes over the summer/online. If you haven’t entered yet and your school gives you ap tests, self studying for the tests are a fairly easy way to knock out a few general requirements. Both will free up plenty of space for grad school prerequisites.
The science ap tests are worlds easier than what you will encounter once you get to college. As are history, psych, statistics, …</p>