In your situation, I'd not bring in any articles, but instead have a meeting with the HS principal, gently discuss the situation, and make the honors science request in person. Often these all-or-nothing rules are not so rigid when you discuss them in person.
Bring in the tests that show the high ability, and then discuss (or bring in examples of) your son's science interests and career goals. I would not cast aside or make light of where your son hasn't measured up this year, and outline how he is going to make sure he gets off onto the right foot next year with the homework.
