While we're ecstatic that teachers are interested in using Mystery Science at upper-grade levels, we are an NGSS-aligned K-5 curriculum and don’t have any immediate plans to expand into middle school or beyond.
That said, many teachers and homeschool parents use Mystery Science with their older students as a review for previously taught subjects or as a springboard to more complex topics!
Discovery Education has an excellent curriculum for grades 6-12 on their Science Techbook and DE Experience platforms. If you are interested in exploring these options, please reach out to the Discovery Education Sales Partnerships team for more information. If you're looking for lessons that are similar in style or format to Mystery Science, they may be able to help! Email DE at firstname.lastname@example.org or call 1-800-323-9084, prompt 2.