Katie DuffTeacher, 8th grade science(512) 428-2718 katie_duff@roundrockisd.orgMs. Duff's WebsiteMary Jo Fatke7th Grade Science Teacher512-428-2716Ms. Fatke's WebsiteKen Floyd6th Grade Science Teacher512-428-2736Mr. Floyd's WebsiteErika Macht7th Grade Science Teacher512-428-2715 erika_alderman-macht@roundrockisd.org Ms. Macht's WebsiteAngela Marraudino8th Grade Science Teacher512-428-2717Ms. Marraudino Website