EPOL/APOL
BATIBOT
MAALAALA MO KAYA
WANSAPANATAYM
BATANG X
100

A well-tested, widely accepted explanation that combines several hypotheses and observations.

Theory

100

A fracture or zone fractures between two blocks of rock.

Fault

100

A region where the crustal plates are moving apart

Divergent Plate Boundary

100

What do you expect to find parallel to a trench?


volcanic arc

100

LITHOSPHERE

ASTHENOSPERE

HYDROSPHERE

MESOSPHERE

HYDROSPHERE

200

The gradual movement of the continents across Earth's surface over time.

Continental drift

200

Coal beds formed from the compaction and decomposition of swamp plants that lived millions of years ago.

Coal deposits

200

The rigid sections of the lithosphere that move as a unit

Plates
200

What geologic event is most likely to happen when two plates slide past each other?

earthquake

200

Convergent Plate Boundaries

Subduction Plate Boundaries

Transform Plate Boundaries

Divergent Plate Boundaries

Subduction Plate Boundaries

300

A trace of an ancient organism preserved within a layer of rock.

Fossil

300
The process in which the crust plunges back into the Earth.

Subduction

300
A depression in the seafloor produced by the subduction process.
Trench
300
When an oceanic plate collides with a continental plate, which of the two will subduct?

the oceanic plate

300

Divergent-mountains

Convergent-volcanoes

Transform-earthquakes

divergent-mountains

400

300 million years ago, the continents were one giant landmass called _____

Pangaea

400

Current in the mantle because of the heat from the inner layers of the Earth, and is the force that drives the plates to move.

Convection Current
400
A boundary in which two plates move toward each other

Convergent Plate Boundary

400

What theory helps explain the formation and destruction of the Earth's crust and its movement over time?

Plate Tectonics Theory

400

convergent - mountains

convergent- trenches

convergent-rift valleys

convergent volcanoes

convergent-rift valleys

500

Earth is covered with landmasses called _____.

Continent

500

Branch of geology that deals with the movements that shape the Earth's Crust.

Tectonics

500
A chain of volcanoes that develop parallel to a trench.

Volcanic Island Arc

500

What are the mechanical layers of the Earth?

Lithosphere

Asthenosphere

Mesosphere


500

divergent - ocean ridges

divergent - earthquakes

divergent - trenches

divergent - rift valleys

The theory of continental drift, which states that continents were once a large landmass called Pangaea.  Overtime, this large landmass broke up and the pieces dirfted apart, forming the continents we now see.

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