Chapter 2

Question 1

Siesmic wave

Answer 1

A type of siesmic wave that moves up or down, or side to side.

Question 2

Pressure

Answer 2

The force extended on a surface divided by the total area which the force is exerted

Question 3

Crust

Answer 3

The layer of rock that forms Earth’s surface

Question 4

Basalt

Answer 4

A dark, dense, igneous rock with a fine texture , found in oceanic crust.

Question 5

Granite

Answer 5

A usualy light colored igneous rock that is found in continental crust.

Question 6

Mantle

Answer 6

The layer of hot, solid, material between Earth’s crust and core.

Question 7

Radiation

Answer 7

The direct transfer of energy through space by electromagnetic waves.

Question 8

Conduction

Answer 8

The direct transfer of thermal energy from one substance to another substance that is touching.

Question 9

Convection

Answer 9

The transfer of thermal energy by the movement of a fluid

Question 10

Density

Answer 10

The amount of mass in a substance in a given volume; mass per. unit of volume

Question 11

Convection current

Answer 11

the movement of a fluid caused by differences in temp. that transfers heat from one part of a fluid to another.

Question 12

Continental Drift

Answer 12

The hypothesis is that the continents slowly move across earth’s surface

Question 13

Pangaea

Answer 13

The name of the single landmass that broke apart supposidly “200 million “ years ago, and gave rise to the continents.

Question 14

Fossil

Answer 14

A trace of an ancient organisim that has been preserved in rock

Question 15

Mid ocean ridge

Answer 15

An undersea mountain change where new ocean floor is produced.

Question 16

Sonar

Answer 16

A device that determines the distance of an object under water by recording echoes of sound waves

Question 17

Sea floor spreading

Answer 17

The process by which molten material adds new crust to the ocean floor

Question 18

Deep ocean trench

Answer 18

A deep valley along the ocean floor beneath which oceanic crust slowly sinks toward the mantle.

Question 19

Subduction

Answer 19

The process by which oceanic crust sinks beneath a deep ocean trench and back into the mantle at a convergent plate boundary

Question 20

Plate

Answer 20

a section that slowly moves over the anthosphere, carrying pieces of continental and oceanic crust

Question 21

Scientific therory

Answer 21

A well tested concept that explains a wide range of observations

Question 22

fault

Answer 22

A break or crack in Earth’s lithosphere along which rocks move.

Question 23

Divergent boundary

Answer 23

A plate boundary where two plates move away from eachother.

Question 24

Rift valley

Answer 24

A deep valley that forms where two plates move apart.

Question 25

Convergent boundary

Answer 25

A plate boundary where two plates move past eachother in opposite directions.

Question 26

Transform boundary

Answer 26

A plate boundary where two plates move past eachother in opposite directions.