ch. 3 key terms

Question 1

geosphere

Answer 1

the mostly solid , rocky parts of earths surface extends from the center of the core to the surface of the crust

Question 2

hydrosphere

Answer 2

the portion of earth that is water

Question 3

crust

Answer 3

the thin and solid outermost layer of the earth above the mantle

Question 4

mantel

Answer 4

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

Question 5

core

Answer 5

the center part of the earth below the mantel also the center of the sun

Question 6

lithosphere

Answer 6

the solid outer layer of the earth that consists of the crust and the ridge upper part of the mantel

Question 7

asthenosphere

Answer 7

the solid plastic layer of the mantel beneath the lithosphere it allows tectonic plates to move on top of it

Question 8

techtonic plates

Answer 8

a block of lithosphere that consists of the crust and the ridge outermost parts of the mantel

Question 9

chemical weathering

Answer 9

the process in which rocks breaks down as a result of chemical reactions

Question 10

erosion

Answer 10

a process in which the materials of earth surface are loosened dissolved of worn away and transported from one plate to another

Question 11

atmosphere

Answer 11

a mixture of gases that surrounds a planet such as earth

Question 12

troposphere

Answer 12

the lowest layer of the atmosphere in which tempetures drop and the constant rate increases

Question 13

stratosphere

Answer 13

the layer of the atmosphere that lies between the trophosphere and the mesosphere in which temps increases

Question 14

ozone

Answer 14

a gas molecule that is made up of three oxygen atoms

Question 15

radiation

Answer 15

the energy that is transfered as electromagnetic waves such as visable light

Question 16

conduction

Answer 16

the transfer of energy as heat through a material

Question 17

convection

Answer 17

the movement of matter due to differences in density that are caused by temperatures variations

Question 18

greenhouse effect

Answer 18

the warming of the surface and lower atmospheres of earth that occurs when carbon dioxide and other gases in the air absorb

Question 19

water cycle

Answer 19

the continuous movement between the atmosphere the land and oceans

Question 20

evaporation

Answer 20

the change of state from a liquid to a gas

Question 21

condensation

Answer 21

the change of state from gas to liquid

Question 22

precipitation

Answer 22

and form of water that falls onto the earth surface from clouds

Question 23

salinity

Answer 23

a measure of the amount of dissolved salts in a given amount

Question 24

fresh water

Answer 24

water that contains insignifigant amounts of salts as in rivers and lakes

Question 25

biosphere

Answer 25

part of earth where life exist