It’s a legitimate concern. I know engineering students who’ve lost their scholarships or come close - smart students with high test scores and excellent HS GPAs who went to class and worked hard. But I know many more who’ve met the 3.0 requirement (or much higher). What are your other alternatives? I would not turn down a good scholarship out of fear that I wouldn’t meet the GPA requirement - you need to have confidence in the abilities that got you the scholarship in the first place - but be prepared to work hard and to protect your GPA. That means not taking too many difficult courses at the same time if you can help it, not taking multiple lab courses at the same time if you don’t need to, joining study groups, going to every class, going to office hours, seeking out help at the first sign of trouble, etc. Engineeering courses get harder as you go along, so try to give yourself a cushion with a great GPA freshman year.