Ch. 3 Key Terms

Question 1

Geosphere

Answer 1

The solid part of the Earth that consists of all rock

Question 2

Crust

Answer 2

Earth’s thin outer layer

Question 3

Mantle

Answer 3

Mantle

The layer beneath the crust . Makes up 64% of Earth’s mass

Question 4

Core

Answer 4

Earth’s innermost layer

Question 5

Lithosphere

Answer 5

Earth’s outer layer

Question 6

Asthenosphere

Answer 6

The layer beneath the lithosphere

Question 7

Tectonic Plates

Answer 7

The lithosphere divided in to many parts. These parts float, shift, and collide on the Earth’s surface

Question 8

Erosion

Answer 8

The removal and transport of surface material

Question 9

Atmosphere

Answer 9

A mixture of gases that surround earth

Question 10

Troposphere

Answer 10

The atmospheric layer nearest Earth’s surface

Question 11

Stratosphere

Answer 11

Above the troposhere

Question 12

Ozone

Answer 12

A molecule made up of three oxygen atoms

Question 13

Radiation

Answer 13

The transfer of energy across space

Question 14

Conduction

Answer 14

Heat transferred to the body by nearby objects

Question 15

Convection

Answer 15

The transfer of heat by air currents

Question 16

Greenhouse Effect

Answer 16

A process in which gases trap heat near the surface of the Earth

Question 17

Water Cycle

Answer 17

The continuous movement of water into the air, onto land, and then back to water sources

Question 18

Evaporation

Answer 18

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

Question 19

Condensation

Answer 19

The process by which water vapor forms water droplets on dust particles.

Question 20

Precipitation

Answer 20

Rain

Question 21

Salinity

Answer 21

The concentration of all the dissolved salts that ocean water contains

Question 22

Fresh Water

Answer 22

A little more than 3% of all water on Earth

Question 23

Biosphere

Answer 23

The narrow layer around Earth’s surface in which life can exist.

Question 24

List the Earth’s layers from inside to outside

Answer 24

Inner core, core, mantle, asthenosphere, lithosphere, crust

Question 25

List the Earth’s atmospheric layers from highest to lowest

Answer 25

Exosphere, Thermosphere, Mesosphere, Stratosphere, Troposphere