My son has been offered to apply for a schlorship to attend a college preparatory high school. But if he gets it, it will only cover about half of the cost. Where would I look to find places that would give grants and/or schlorships to cover the rest. Keep in mind that this is for high school not college.

The school your son has the scholarship too should have an additional list of grantees etc. or your local high school counselor should have a list of available grants for high school students. I would also try the local School Board, if they don't have ask if they know who would. Good luck and congrats on a great kid!