Spacey Stuff Flashcards
(24 cards)
What is astrobiology
The study of future life out side our solar system
What are the 4 needs of life?
Energy, water, Nourishment, Living space
How many miles away is the earth from the sun
93 million miles
What is the composition of the earths atmosphere
78% nitrogen 21% oxygen 1% other gases
What is the newmonic device to remember the layers of the atmosphere
Tacos (&) Starbucks Make Things Excellent
Now what are the layers of the atmosphere
Troposphere Stratosphere Mesosphere Thermosphere Exosphere
Where does weather occur
Troposphere
What are some characteristics of the stratosphere
Ozone, protects us from UV Rays, jets fly here
Where do meteors burn up
Mesosphere
What are some characteristics of the Thermosphere
The warmest layer, ISS flys here
Give some characteristics of the exosphere
Hottest layer, outer space
Name 3 ways the atmosphere protects the earth
UV Rays, meteors, maintain temperature and pressure
Name 3 reasons why liquid water is necessary
Dissolving water, 65% of the human body is water, moving molecules in cells
What happens to the boiling temp as pressure increases
It decreases
What happens to the freezing temperature as pressure increases
It increases
Organic refers to a class of chemical compound based on _______
Carbon
Scientists have found that as a satellite orbits a massive planet, the planets _________ can cause the satellites interior to heat.
Gravity
Which are the two moons that have cracks in the ice where liquid water may have seeped to the surface
Europa and Ganymede
Which moons possibly have geysers
Enceladus, Tethys
Name 3 reasons probes are used for space research instead of humans
It costs less, safer, takes less time
List 4 challenges for humans in space
Solar radiation, oxygen, temperature/ pressure extremes, microgravity
On LONG TERM trips to space, how is temperature and pressure controlled on the astronaut
They wear an EMU so they can survive
Give an example of how microgravity makes it difficult to work or live in space
Screwing a screw in is difficult because you must make sure the screwdriver doesn’t turn you.
How long do astronauts have to exercise every day and why
- 2.5 hours
2. To keep their muscles, bones, and heart healthy
