Unit 9 Flashcards
1
Q
Atmosphere
A
a mixture of gases that surrounds a planet or moon
2
Q
gravity
A
a force of attraction between objects that is due to their masses
3
Q
accommodations
A
changes that must be made in an environment to maintain livable conditions for humans
4
Q
manned
A
space exploration-humans on board space craft
5
Q
pressure
A
contains physical force exerted on or against an object by something in contact with it
6
Q
proximity
A
closeness
7
Q
radiant energy
A
the energy we get from the sun includes infrared and ultraviolet energy
8
Q
temperature
A
measurement of heat
9
Q
solar system
A
sun, planets, and all to other objects that revolve around the sun
10
Q
micro gravity
A
condition in which people or objects appear to be weightless
11
Q
habitable zone
A
range of orbit around a star in which a plant can support liquid water
