ch. 3 key terms

Question 1

geosphere

Answer 1

The solid part of the earth that consists of all rock, as well as the soils and loose rocks on earth earth surface makeups the.

Question 2

hydrosphere

Answer 2

makes up all of the water on on or near earth’s surface

Question 3

crust

Answer 3

is composed almost entirely of light elements

Question 4

mantle

Answer 4

which is a layer beneath the crust makes up 68percent of the mass of earth

Question 5

core

Answer 5

earth’s innermost layer

Question 6

lithosphere

Answer 6

earths outer layer is the.

Question 7

asthenosphere

Answer 7

the layer beneath the lithosphere

Question 8

tectonic plate

Answer 8

that glide across the underlying asthenosphere in much the same way a chunk of ice drifts across a pond

Question 9

chemical weathering

Answer 9

wear down rocks making them smother as time passes

Question 10

erosion

Answer 10

transports the materials elsewhere

Question 11

atmosphere

Answer 11

earth surrounded by mixtures of gasses known as the

Question 12

troposphere

Answer 12

extends to about 18km above earth surface

Question 13

stratosphere

Answer 13

separated from the troposphere by the tropopause

Question 14

ozone

Answer 14

is a molecule made up of three oxygen atoms

Question 15

radiation

Answer 15

is the transfer of energy as electromagntic waves

Question 16

conduction

Answer 16

is the transfer of energy in the form of heat form a warmer object to a colder object when the objects are placed in direct physical contract

Question 17

convection

Answer 17

is the transfer of energy that takes place when variations in temperature move the matter makes up air

Question 18

greenhouse effect

Answer 18

without the greenhouse effect the earth would be to cold for life to exist

Question 19

water cycle

Answer 19

The continues movement of water into air onto land and then back to water source is known as the

Question 20

evaporation

Answer 20

is the process by the which liquid water is heated by sun and then rises into the atmosphere as water vapor

Question 21

condensation

Answer 21

water vapor forms water droplets on dust particles

Question 22

precipitation

Answer 22

may also take form of snow, sleet, or hail

Question 23

salinity

Answer 23

of ocean water is the concentration of all the divored salts it caintains

Question 24

fresh water

Answer 24

a little more then 3 percent of all the water on earth is fresh.

Question 25

biosphere

Answer 25

is the narrow layer around the earth surfce in which life can exist