OP, I’m sure your kid is bright and hard working and if she continues on her trajectory will be competitive for PhD programs in a few years. But I have over two decades’ experience reviewing PhD applications and interviewing applicants, and training my own PhD students, and our biomedical program would not care about your kid’s high school summer contributions. If she is a coauthor on a paper, she should list that, otherwise there should be nothing on her application or resume about any high school activities. @boneh3ad is correct: your kid’s graduate school application will be judged by her accomplishments as an undergraduate and her most immediate past.