Unit 9 Vocab Flashcards

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1
Q

a mixture of gases that surrounds a planet or moon.

A

Atmosphere

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2
Q

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

A

Gravity

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3
Q

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

A

Accommodations

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4
Q

humans on board space craft

A

Manned-Space Exploration

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5
Q

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

A

Pressure

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6
Q

closeness

A

Proximity

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7
Q

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

A

Radiant Energy

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8
Q

measurement of heat

A

Temperature

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9
Q

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

A

Solar System

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10
Q

condition in which people or objects appear to be weightless

A

Micro Gravity

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11
Q

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

A

Habitable zone

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