Meet Yorick
- Introduces the bionic skeleton on display at the National Museum of American History.
- http://www.fda.gov/oc/opacom/kids/html/yorick_no.1.htm

Skeletal System
- Real photographs of the human skeletal system, including a quiz.
- http://www.bio.psu.edu/people/faculty/strauss/anatomy/skel/skeletal.htm

Science: Out of This World -- Bones
- A basic overview of bone structure, including a quiz.
- http://www.spacesciencegroup.org/lessons/default.asp?Theme=humanbody&PageName=bones

The Online Skeleton
- Features a PDF download of the human skeleton, with close-ups of each part, and an explanation of the way they are connected.
- http://www-personal.une.edu.au/~pbrown3/oskel.html

Printable Blank Outline Diagram of the Human Skeleton
- Blank diagram of the human skeletal system with answers at the bottom of the page.
- http://www.lessontutor.com/jm_skeleton.html

The Skeletal System
- A 14-question interactive quiz.
- http://www.vtaide.com/png/skeletal-mcq.htm

Kidport 5th Grade Science: The Human Arm Bones
- A clickable quiz of the human arm bones.
- http://www.kidport.com/Grade5/Science/ArmBones.htm

Space Bones
- NASA science news about preventing the steady loss of bone mass that astronauts encounter. Includes audio and a downloadable file of the article.
- http://science.nasa.gov/headlines/y2001/ast01oct_1.htm