Chapter 3 Key terms

Question 1

geosphere

Answer 1

the mostly solid rocky part of Earth extend from center of the core to the surface of crust

Question 2

hydrosphere

Answer 2

the portion of Earth that is water

Question 3

crust

Answer 3

Earth thin crust composed of almost entirely of light elements.

Question 4

mantle

Answer 4

in earth science the layer of rock between the earth crust and core

Question 5

core

Answer 5

the central part of the earth below the mantle also the center of the sun

Question 6

lithosphere

Answer 6

the solid outer layer of the earth that consist of the crust and the rigid upper part of the mantle

Question 7

asthenosphere

Answer 7

a mixture of gases that surrounds a planet such as earth

Question 8

tectonic plate

Answer 8

a block of lithosphere that consists of the mantle also called lithospheric plate

Question 9

chemical

Answer 9

the process by which rocks break down as a results of chemical reactions

Question 10

weathering

Answer 10

the continuous movement of the water

Question 11

erosion

Answer 11

a process in which the materials of the earth surface are loosened dissolved or worn away and transported from one place to another by a natural agent such as wind water ice or gravity

Question 12

atmosphere

Answer 12

a mixture of gases that surrounds a planet such as earth

Question 13

troposphere

Answer 13

the lowest layer of the atmosphere in which temperature drops at a constant rate as altitude increases the part of the atmosphere where weather conditions exist

Question 14

stratosphere

Answer 14

the layer of the atmosphere that lies between the troposphere and mesosphere and which temperature increases as altitude in creases contains the ozone layer

Question 15

ozone

Answer 15

a gas molecule that is made up of three oxygen atoms

Question 16

radiation

Answer 16

the energy that is transferred as electromagnetic waves such as visible light and infrared waves

Question 17

conduction

Answer 17

the transfer of energy as heat through a material

Question 18

convection

Answer 18

the movement of matter of matter due to differences in

Question 19

greenhouse effect

Answer 19

the warming of the surface and lower atmosphere of earth that occurs when carbon dioxide water vapor and other gases in air absorb and radiate infrared radiation

Question 20

water cycle

Answer 20

water that contains wastes from homes or industry

Question 21

evaporation

Answer 21

the change of state from a liquid to a gas

Question 22

condensation

Answer 22

the change of state from a gas to liquid

Question 23

precipition

Answer 23

In meteorology, precipitation is any product of the condensation of atmospheric water vapor that falls under gravitational pull from clouds.

Question 24

salinity

Answer 24

the concentrations of salts in water or soils.

Question 25

fresh watere

Answer 25

water that contains insignificant amounts of salts in rivers and lakes

Question 26

biosphere

Answer 26

the part of earth where life exists