This is a study intended to address white supremacy in science education. To accomplish this, we describe how one White intern, Boaz, learned to teach science in anti-racist ways. By detailing how whiteness mattered in his learning to teach, we demonstrate that whiteness is potentially constant in White peoples' learning to teach science in anti-racist ways. However, we conclude by suggesting that critical whiteness ambitious science teacher education, a merging of critical whiteness pedagogy with practice-based science teacher education provides a potential way to address the presence of whiteness in science teacher education.