National Aeronautics and Space Administration
Skeletal System: Human Physiology in Space

During this seminar, educators received information about the effects of microgravity on the physiology of astronauts and the countermeasures NASA uses to help astronauts overcome those effects when they return to Earth. This seminar prepared participants to use the Skeletal System: Human Physiology in Space lesson with their students. In the first activity, students discover how bone growth characteristics in our limbs are related to our overall skeletal structure, particularly our height. In the second activity, students compare the strength characteristics of various materials.


This web seminar is part of a series of electronic professional development experiences sponsored by the NASA Explorer Schools (NES) project. NASA Explorer Schools invests in science, technology, engineering, and mathematics educators to inspire and engage a whole generation of future scientists, engineers and technicians that NASA needs to continue our journey. NES gives educators of grades 4-12 free access to NASA’s people, missions, research, and facilities. We take the work out of searching through thousands of materials on the NASA website and provide a comprehensive set of teaching materials for dozens of STEM concepts. For additional information about the NASA Explorer Schools project, visit

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