Unit 9 Flashcards

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1
Q

Atmosphere

A

a mixture of gases that surrounds a planet or moon.

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2
Q

Gravity

A

a force of attraction between objects that is due to their masses

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3
Q

Accomodations

A

changes that must be made in an environment to maintain livable conditions for humans

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4
Q

Manned

A

Space Exploration - humans on board space craft

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5
Q

Pressure

A

continuous physical force exerted on or against an object by something in contact with it

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6
Q

Proximity

A

closeness

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7
Q

Radiant Energy

A

the energy we get from the sun, includes infrared and ultraviolet energy

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8
Q

Temperature

A

measurement of heat

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9
Q

Solar System

A

sun, planets, and all the other objects that revolve around the sun

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10
Q

Micro Gravity

A

condition in which people or objects appear to be weightless

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11
Q

Habitable zone

A

range of orbit around a star in which a plant can support liquid water

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