CONTINENTAL DRIFT
ALFRED LOTHAR WEGENER
The ocean floor sinks beneath a deep-ocean trench and back into the mantle in a process known as ________.
CONVECTION
The layer that comprises 82% of the Earth's volume
Mantle
Edges where plates move against one another or interact.
PLATE BOUNDARY
Activity in this layer of the earth is thought to be directly responsible for Earth's magnetic field
Outer Core
What is the title of Wegener's book that explains the Continental Drift Theory?
The History of Continents and Ocean
The scientist credited with seafloor spreading is _________
HARRY HESS
The lithosphere is made up of __________ and __________________
crust and upper mantle
The Philippine archipelago was formed by what specific type of plate boundary?
Convergence of two oceanic plate/ Oceanic-oceanic convergent plate boundary
The longest underwater mountain range in the world
Mid-atlantic Ridge
Pangea is a Greek word which means ______________
All Earth
A device or a technique that uses sound propagation, to navigate, measure distances, communicate with, or detect objects on or under the surface of the water
SONAR
The boundary between crust and mantle
MOHOROVIĈIĆ DISCONTINUITY
In a hot spot, Mount Charot is on top of the mantle plume, Mount Charing is 10km away from Mount Charot while Mount Charizz is 8km away from Mount Charot. Among the three volcanoes, what volcano is the oldest?
Mount Charing
Also known as Circum-Pacific Belt, is a path along the Pacific Ocean characterized by active volcanoes and frequent earthquakes.
Pacific Ring of Fire
Where did Wegener work as a meteorologist?
GREENLAND
The youngest rocks on the ocean floor are located ___
at mid-ocean ridges
Give the 3 driving forces that move the lithospheric plates.
Convection of the mantle
Ridge Push
Slab pull
Subduction of the oceanic crust where it bends down towards the mantle occurs at a ____________
If all the inner layers of the Earth are firm and solid, what could have happened to Pangea?
Pangea will not drift or it remained as a supercontinent
Give the 4 pieces of evidence of Continental Drift Theory
CONTINENTAL FIT/ JIGSAW PUZZLE
BIOLOGICAL EVIDENCE
GEOLOGIC EVIDENCE
CLIMATIC EVIDENCE
Give the 3 pieces of evidence of Seafloor Spreading Theory
Evidence from molten material
Magnetic Stripes
Drilling samples
Give the 5 mechanical layers of the Earth
Lithosphere
Asthenosphere
Mesosphere
outer core
inner core
Crust is neither destroyed nor formed along which of the following plate boundaries?
Transform
If the Atlantic Ocean is widening at a rate of 3cm per year, how far (in kilometers) will it spread in a million years
30 kilometers