chapter 6

Question 0

Pangea

Answer 0

Single giant landmass that later broke apart.

Question 1

Continental drift

Answer 1

The theory that once the continents were once a single landmass.

Question 2

Mid ocean ridge

Answer 2

Ocean look feature resembling a mountain ridge on land

Question 3

Rift Valley

Answer 3

Flat area between two ridges that is formed by spreading plates.

Question 4

Seafloor spreading

Answer 4

The process that formed a new sea floor

Question 5

Trench

Answer 5

Deep canyon

Question 6

Subduction zone

Answer 6

Place were old oceanic crusting forced back down into an ocean trench

Question 7

Tectonic plate

Answer 7

Large solid piece of earths surface

Question 8

Theory of plate tectonics

Answer 8

Theory that earths crust is broken into pieces.

Question 9

Convection current

Answer 9

Movement of gass or liquid caused by changes in temperature

Question 10

Plate boundary

Answer 10

Place were two places meet

Question 11

Magma chamber

Answer 11

Underground chamber of molten rock

Question 12

Hot spot

Answer 12

Place were magma reaches the surface of a tectonic plate