Comp. # ____
Name ____Quintero__________
Date ___1/13/15______
Science 7/Period ___All____
Quintero
SURVIVING SPACE
Go to: http://staff.katyisd.org/sites/crjh7Science/Pages/default.aspx (my web page on CRJH site ) Look under
“documents” in the “Space” folder and start the “Surviving Space” PPT. You can read info. and click on links to
websites.
A. http://www.nasa.gov/audience/forstudents/5-8/features/what-is-a-spacewalk-58.html
1. What is a spacewalk? _______Anytime an astronaut gets out of a space vehicle________
2. What is another name for one? __extravehicular activity (EVA)_________
3. Why are they necessary? Allow astronauts to work outside a spacecraft in space for things such as
1.experiments and 2.repairs________
4. From what do spacesuits protect spacewalkers? Extreme hot and cold temps., harmful space dust and
radiation
5. What do they provide for the astronaut? 1. oxygen to breathe
2. water to drink
3.pressure to keep fluids in the body in a liquid state
6. On spacewalks, tethers are used for what two things?
1. keep astronauts from floating away into space
2. keep tools from floating away while astronauts are working
7. SAFER stands for ___Simplified Aid for EVA Rescue_______________.
8. For what is it used?
If an astronaut becomes untethered and floats away—this “jet pack”
would help the astronaut fly back to the spacecraft
B. http://www.nasa.gov/mov/196845main_069_Spacesuits.mov
1. What are the dangers in space?
1. no atmospheric pressure
2. no oxygen
3. intense radiation
4. extreme temperatures
2. What are the spacesuits called? __(EMU) Extra-vehicular Mobility Unit____
3. What are 3 other conditions/factors in space that can have deadly consequences for unprotected
humans in space?
1. vacuum in space --pressure
2. temperature extremes (very hot or very cold)
3. micrometeoriods
C. http://www.nasa.gov/externalflash/nasa_spacesuit/
Watch intro. Then scroll over the spacesuits and click on the EMU. You will read about some of the more important
parts of the suits in the next 2 sections.
Helmet :
Protects from _impacts__ and _____sunlight _____.
Carries __oxygen________ in and flows over the astronauts face for __cooling___and pushes _humidity (water
vapor)________ and ____carbon dioxide__ into the suit. Click back…
Display and Control Module :
Where is it located? Front of the EMU
Allows the astronaut to control __
pressure
_, ______temperature
______,
and ____communications_____ in the suit. The writing on it is __backwards__ and the astronaut has a
__
_mirror____ on his wrist to help him/her read it.
D. http://www.nasa.gov/audience/foreducators/spacesuits/home/clickable_suit.html
Layers :__14___ layers to protect.
1-3 made up the ___liquid cooling and ventilation garment___
Next is the bladder layer that provides proper ___ pressure
Next layer keeps the bladder the right ___ shape
_____. Also holds in _____oxygen ______.
____ for the astronaut. Then comes the ripstop liner which
prevents ___tearing ____. The next 7 layers insulate and make the suit act like a ___ thermos______. The layers
keep _the temperature from changing____. They also protect from small, high-speed _flying objects__.
Outer layer is made of _3__fabrics which are __waterproof__, __bullet-proof_, and
_fire- resistant_.
PLSS--Primary Life support Subsystem : Provides many things need for survival.
Supplies __oxygen _________ and removes ____carbon dioxide___, contains a battery for
___electrical power_____, holds a ___water-cooling equipment____, __a fan to circulate oxygen___, and a
___two-way radio______. A ___caution __ and _____warning_________ system alerts of problems with suit.
** Why are the EMU’s white? 1. To reflect heat
and
2. To stand out against the blackness of space