Science

Question 1

The theory that the earth is broken into plates and are in motion due to convection currents in the asthenosphere (upper mantle)

Answer 1

Plate Tectonics

Question 2

Term for the super continent which contained all the plates together

Answer 2

Pangea

Question 3

The thin and solid outermost layer of the Earth above the mantle

Answer 3

Crust

Question 4

The solid, outer physical layer of the Earth that consists of the the crust and the rigid upper part of the mantle

Answer 4

Lithosphere

Question 5

Long, narrow depression formed at divergent boundaries

Answer 5

Rift valley

Question 6

A current caused by the rising of heated fluid and sinking of cooled fluid believed to drive plate movement in the mantle of the earth

Answer 6

Convection current

Question 7

Areas that are below sea level

Answer 7

Ocean basin

Question 8

Measures and records earthquake magnitude based on the energy released in an earthquake.

Answer 8

Seismographs

Question 9

A giant wave usually caused by an earthquake beneath the ocean floor.

Answer 9

Tsunami

Question 10

A weak spot in the crust where magma has come to the surface

Answer 10

Volcano

Question 11

A shaking or sliding of the ground. It is caused by the sudden movement of masses of rock along a fault or by changes in the size and shape of masses of rock far beneath the earth’s surface.

Answer 11

Earthquake

Question 12

Thinner, more dense, younger crust making ocean floor

Answer 12

Oceanic crust

Question 13

Idea that at one point in time all of the continents were one super continent called Pangea

Answer 13

Theory of Continental Drift

Question 14

The boundary between tectonic plates that are sliding past each other horizontally

Answer 14

Transform Boundary

Question 15

An area in the mantle that is super heated and melts through the crust (like a blow-torch)

Answer 15

Hot spot

Question 16

A major geological fault in California formed by a sliding transform boundary.

Answer 16

San Andreas Fault

Question 17

The soft physical layer of the mantle on which the tectonic plates move

Answer 17

Asthenosphere

Question 18

Proposed the continental drift theory in the 1900s

Answer 18

Alfred Wegener

Question 19

The hypothesis that states that the continents once formed a single landmass, broke up, and drifted to their present locations

Answer 19

Continental Drift

Question 20

The process by which new oceanic crust forms as magma rises towards the surface and solidifies at divergeny boundaries.

Answer 20

Sea-floor spreading

Question 21

The boundary formed by the collision of two plates

Answer 21

Convergent Boundary

Question 22

The boundary between two tectonic plates that are moving away from each other

Answer 22

Divergent Boundary

Question 23

Process in which two plates collide and the denser ocean plate descends below the other

Answer 23

Subduction

Question 24

Extremely deep areas in the ocean that are created by a subducting plate

Answer 24

Deep Ocean Trench

Question 25

An underwater mountain range made at divergent plate boundaries

Answer 25

Mid-ocean ridge

Question 26

The location on the surface directly above the focus

Answer 26

Epicenter

Question 27

The portion of the earth’s crust that primarily contains granite, is less dense than oceanic crust, and is 20-50 km thick

Answer 27

Continental crust

Question 28

The location of the deepest trench on earth made from two oceanic crusts converging.

Answer 28

Mariana Trench

Question 29

vibrations that travel through Earth carrying the energy released during an earthquake

Answer 29

siesmic waves