Ch. 3 Key Terms

Question 1

geosphere

Answer 1

the solid part of earth

Question 2

hydrosphere

Answer 2

all of the water near the surface of earth

Question 3

crust

Answer 3

composed of light elements

Question 4

mantle

Answer 4

the layer beneath the crust

Question 5

core

Answer 5

the earths innermost layer is the core

Question 6

lithosphere

Answer 6

the outer layer

Question 7

asthenosphere

Answer 7

the layer beneath the lithosphere

Question 8

tectonic plate

Answer 8

part of the lithosphere is a 2 peaces

Question 9

chemical wether

Answer 9

wears down rocks

Question 10

erosion

Answer 10

transports the materials elsewhere

Question 11

atmosphere

Answer 11

the gasses that surround earth

Question 12

troposphere

Answer 12

the nearest layer in the atmospheric

Question 13

stratosphere

Answer 13

the layer above troposphere

Question 14

ozone

Answer 14

a molecule made up of 3 oxygen atoms

Question 15

radiation

Answer 15

the transfer of energy as electromagnetic waves

Question 16

conduction

Answer 16

the transfer of energy in the form of heat

Question 17

convection

Answer 17

the transfer of energy that takes place when variations in tempature

Question 18

greenhouse effect

Answer 18

absorb and reradiate infrared radaition near the earth

Question 19

water cycle

Answer 19

water into air and back into land

Question 20

evaporation

Answer 20

the process of whitch water is heated up by the sun

Question 21

condensation

Answer 21

water vapor water droplets on dust particals

Question 22

precipitation

Answer 22

water droplets falling from the clouds

Question 23

salinity

Answer 23

the concentration of all desolved salts

Question 24

fresh water

Answer 24

3% of earths water

Question 25

biosphere

Answer 25

the narrow layer around earth where life can exist