science
Free "History of Science" Lesson Plans for 6-12 gr.
Written for teachers, these are interdisciplinary lesson plans. Some consist of only one or two activities, while others could fill a semester or more. The lessons I've read are clear, fully explained, and include extensive bibliographies. Most are written with the expectation that students will be working in a group. They could a be a valuable resource for a homeschool science club.
Regulating genes: an interactive genetic mutation game
From NOVA, this is an online game that lets you introduce mutations to the genetic code of a bug, and see the results. The game highlights why different cells express different genes, and how different mutations affect gene expression differently. Includes background information, a lesson plan (under teacher resources) and a student worksheet (under student resources). Be aware that an audio recording of an article titled "sexual canibilism" (about spiders) is highlighted in the sidebar of this page.
Comparative Anatomy Dissection Class
Human Anatomy Dissection Class