unit 9 Flashcards
(11 cards)
1
Q
a mixture of gases that surrounds a planet or moon.
A
Atmosphere
2
Q
a force of attraction between objects that is due to their masses
A
Gravity
3
Q
changes that must be made in an environment to maintain
A
Accomodations
4
Q
Space Exploration - humans on board space craft
A
Manned
5
Q
continuous physical force exerted on or against an object by something in contact with it
A
Pressure
6
Q
closeness
A
Proximity
7
Q
the energy we get from the sun, includes infrared and ultraviolet energy
A
Radiant Energy
8
Q
measurement of heat
A
Temperature
9
Q
sun, planets, and all the other objects that revolve around the sun
A
Solar System
10
Q
condition in which people or objects appear to be weightless
A
Micro Gravity
11
Q
range of orbit around a star in which a plant can support liquid water
A
Habitable zone
