Science Vocab 2

Question 1

Sea Floor Spreading

Answer 1

The process by which new oceanic crust forms along a mid ocean ridge and older oceanic crust moves away from the ridge.

Question 2

Ocean Current

Answer 2

Large volume of water flowing in a certain direction. Can be on the surface or deep below

Question 3

Transfrom - Fault Boundary

Answer 3

A plate boundary where two plates move past one another in opposite directions

Question 4

Ocean Trench

Answer 4

deeo underwater troughs created by one plate subducting under another plate at a convergent plate boundary

Question 5

Rift Valley

Answer 5

A deep valley that forms where two plates move apart on continental crust

Question 6

Topography

Answer 6

the study of elevations on land in relation to each other

Question 7

Fault

Answer 7

a break or crack in the earths lithosphere along which rocks move

Question 8

volcanic arc

Answer 8

a curved line of volcanoes that forms parallel to plate boundary

Question 9

Pangea

Answer 9

all of the continents were once part of the single landmass that broke apart 22.5 million years ago. it is now today’s continents