This patient education program explains bone densitometry and its importance in treating and preventing osteoporosis. This is a MedlinePlus Interactive Health Tutorial from the National Library of Medicine, designed and developed by the Patient Education Institute.

This fun Web site is part of OLogy, where kids can collect virtual trading cards and create projects with them. Here, they learn about paleontology with a hands-on activity. The activity opens with an explanation covering how fossilized bones are usually very delicate and buried deeply in rock fossils. Students are then given step-by-step directions for working with a friend to create two make-believe dig sites by burying bones in plaster of Paris. The activity ends with three discussion questions: What was surprising about excavating the bones? What strategies did you find worked well for removing the plaster? How would you have worked differently if you had no idea what was buried inside?

This still collage produced for Teachers' Domain features a variety of images of fossilized dinosaur bones, which provide evidence for the existence of these fascinating reptiles.

This patient education program explains the differences between fractures and sprains involving the arms or legs, precautions, and the treatments with their risks. It also reviews the bones of the arms and legs. This resource is a MedlinePlus Interactive Health Tutorial from the National Library of Medicine, designed and developed by the Patient Education Institute.

This patient education program explains the differences between fractures and sprains involving the arms or legs, precautions, and the treatments with their risks. It also reviews the bones of the arms and legs. This resource is a MedlinePlus Interactive Health Tutorial from the National Library of Medicine, designed and developed by the Patient Education Institute.

Students will discuss the need for math/science in the dangerous career of "stunt people" for movies.

CK-12 Life Science Honors For Middle School covers seven units: Understanding Living Things; Cells: The Building Blocks of Life; Genetics and Evolution; Prokaryotes, Protists, Fungi, and Plants; The Animal Kingdom; The Human Body; and Ecology.

CK-12 Life Science For Middle School covers: Cell Biology, Genetics, Evolution, Prokaryotes, Protists, Fungi, Plants, The Animal Kingdom, The Human Body, and Ecology.

Muscles and Bones offers teachers 10 activities that help students understand how the body's muscles and bones work. The activities in this guide help students explore important questions related to muscles and bones in living things; such as: Do you know which foods have lots of calcium for your bones? What are you doing to keep your muscles strong? and How do your bones and muscles work together?

In NASA CONNECT, Good Stress: Building Better Muscles and Bones, students will learn about the importance of building and maintaining better muscles and bones. They will learn that all stresses in life are not "bad." In fact, the body needs good stresses, like exercise, to be healthy. Students will see how scientists and researchers collect and analyze physiological data to understand how muscle and bones are constantly changing, especially in a microgravity environment. Grades 6-8.

Study changes in an astronaut's body due to life in a reduced gravity environment and simulate vinegar's effect on bones.

Investigate why astronauts need calcium in space and observe that bones can be hollow and strong.

Learn more about challenges that humans will face traveling on a mission to Mars and simulate the effect of reduced gravity on the human body.

Learn more about current studies in bone strength and examine the structure and composition of bones

This patient education program explains osteoporosis and the causes, risk factors, symptoms, diagnosis, and treatments. Also included are tips for prevention. This resource is a MedlinePlus Interactive Health Tutorial from the National Library of Medicine, designed and developed by the Patient Education Institute.

In this Evolution Web feature, piece together clues to how one of our early ancestors looked as you examine images from four significant fossil finds of Australopithecus afarensis.

This gallery of online resources is from the Museum's Seminars on Science, a series of distance-learning courses designed to help educators meet the new national science standards. Video Gallery: Velociraptor is part of the Dinosaurs Among Us: The Link to Birds seminar. This brief video looks at how the dinosaur is closely related to birds and includes a printable PDF transcript.