CK-12 Foundation
Ck 12: Flex Book Textbooks: Life Science Concepts for Middle School
[Free Registration/Login may be required to access all resource tools.] A complete, web-based, multi-media textbook covering a wide variety of Biological science concepts for middle grades.
University of Utah
University of Utah: Genetic Science Learning Center: teach.genetics: Introduction to Heredity
A three-day unit introduces heredity by helping students identify their own genetic traits and then leading them in an exploration of generational traits and variation. Find printable worksheets, data tables, and graphs, as well as...
Discovery Education
Discovery Education: Curriculum Center: Science
The Discovery Channel provides numerous topics that are the most popular science topics taught in upper elementary and middle school. Content is organized by topics (Bacteria, Oceans, Solar System, etc.); all topics include quick facts,...