Human Body: Space Adaptations
During this web seminar for educators of students in grades 4-8 participants will
receive information about how space affects astronauts and how this research can
lead to a better understanding of Earth-based conditions, such as osteoporosis.
The three student lessons featured in this topic are "Bag of Bones," "Get a Leg
Up," and "O2-How Much?" Seminar participants will learn background information
about bone structure and the effects of microgravity on astronauts. They will also
receive a guided introduction to the three student activities that provide a firsthand
look at the effects of reduced gravity on bones, the fluid shifts in the body, and
the amount of oxygen needed to survive.
Some of the processes and functions of bones change after astronauts have lived
in microgravity for a few days. In space, the amount of weight that bones must support
is reduced to almost zero. At the same time, many bones that aid in movement are
no longer subjected to the same stresses as on Earth. Over time, calcium normally
stored in bones is broken down and released into the bloodstream. This bone loss
begins within the first few days in space. The most severe loss occurs between the
second and fifth months in space, although the process continues throughout the
entire time spent in microgravity. Extended stays on Mir have resulted in losses
of bone mass of as much as 20%.
The exact mechanism that causes the loss of calcium in microgravity is unknown.
Researchers currently are pursuing multiple lines of research, including hormone
level, diet, and exercise to determine exactly what causes-and may control or prevent-osteoporosis
during space flight.
The activities featured in this web seminar provide many opportunities for incorporating
national science, technology, and mathematics learning standards into the curriculum
as well as addressing the Next Generation Science Standards (NGSS).
Next Generation Science Standards
addressed in this web seminar:
- MS-LS1 From Molecules to Organisms: Structures and Processes
- Science and Engineering Practices
- Constructing Explanations and Designing Solutions
- Planning and Carrying Out Investigations
- Disciplinary Core Ideas
- Growth and Development of Organisms
Title: Human Body: Space Adaptations
Target audience: Educators of grades 4–8
Date: Tuesday, April 15, 2014
Time: 6:30 p.m. ET / 5:30 p.m. CT / 4:30 p.m. MT / 3:30 p.m. PT
Duration: 90 minutes
Note: New users should log
in 15 minutes prior to the scheduled start time for an introduction to NSTA web
Presenter: Marti Phipps
to participate in this web seminar. Upon registering you will receive an e-mail
confirmation including information about the program and suggested links to visit
in preparation of the event. Additional information about the web seminar will be
e-mailed to you days before the program.
Each web seminar is a unique, stand-alone, program. Archives of the Web Seminars
and the presenters’ PowerPoint presentations will be available through the
links on this web page. Learn more about the
of the Web Seminar and read answers to
See when other
NASA Explorer Schools web seminars are scheduled.
For more information contact firstname.lastname@example.org
Sponsored by NASA