<p>Yes, I agree, residential would be much better. The problem is that many summer programs for high school students offer supplementary education, not the basics that would be duplicated at a local high school or intro college course. Home school students in the US are able to dual enroll in CC to get access to lab classes.
The closest option I know of is Johns Hopkins accellerated classes summer programs. This program has certain entry requirements but it may work. Hopefully there will be other suggestions.
[Science</a> Courses - Intensive Studies (Grades 7+) | JHU CTY](<a href=“http://cty.jhu.edu/summer/grades7-12/intensive/catalog/science.html]Science”>On-Campus Overview | Johns Hopkins Center for Talented Youth (CTY))</p>