Unit 9 Vocab

Question 1

Atmosphere

Answer 1

• a mixture of gases that surrounds a planet or moon.

Question 2

Gravity

Answer 2

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

Question 3

Accomodations

Answer 3

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

Question 4

Manned-Space Exploration

Answer 4

• humans on board space craft

Question 5

Pressure

Answer 5

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

Question 6

Proximity

Answer 6

• closeness

Question 7

Radiant Energy

Answer 7

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

Question 8

Temperature

Answer 8

• measurement of heat

Question 9

Solar System

Answer 9

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

Question 10

Micro Gravity

Answer 10

• condition in which people or objects appear to be weightless

Question 11

Habitable zone

Answer 11

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