Unit 9

Question 1

Definition of Atmosphere

Answer 1

a mixture of gases that surrounds a planet or moon.

Question 2

Definition of Gravity

Answer 2

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

Question 3

Definition of Accomodations

Answer 3

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

Question 4

Definition of Manned-Space Exploration

Answer 4

humans on board space craft

Question 5

Definition of Pressure

Answer 5

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

Question 6

Definition of Proximity

Answer 6

closeness

Question 7

Definition of Radiant Energy

Answer 7

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

Question 8

Definition of Temperature

Answer 8

measurement of heat

Question 9

Definition of Solar System

Answer 9

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

Question 10

Definition of Micro Gravity

Answer 10

condition in which people or objects appear to be weightless

Question 11

Definition of Habitable zone

Answer 11

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