Vocabulary
The thinnest layer of the Earth
What is the crust
What is the densest layer of Earth?
Inner Core
Created the Continental Drift Theory
Who is Alfred Wegener
Earthquakes and Volcanoes are usually on a or near a
What is a plate boundary
The Himalayan mountains are the result of a ___________________________ boundary.
What is convergent boundary
A number of rigid, but moving, pieces of Earth's surface
What is tectonic plates.
The thickest layer of the Earth
What is the mantle.
What is Pangea?
The formation of continents before they drifted apart.
The mid-ocean ridge is an example of a ____________________ boundary
What is divergent boundary
Hot air or liquid is less ________________ than cool air or liquide
What is dense
The theory that all continents are fragments of Pangaea now drifting apart
What is the Continental Drift Theory
Plates float on top of the _______________________.
What is the asthenosphere
List the 7 major plates
Indo-Australian
Eurasion
Pacific
North American
South American
Antarctic
African
Explain sub-ducting plates and the landforms they create
Denser plate sinks and creates trenches and volcanoes.
Usually caused on a transform boundary, from releasing stored energy.
What is earthquakes
Diverging oceanic crust creates
What is seafloor spreading or ridges
The rigid part of the Earth including the crust and the upper mantle (makes up the plates of the Earth)
What is the lithosphere
What are the major plates named after?
Continents
What plate boundary create mountains?
Convergent
The San Andreas Fault in California is an example of a ____________________ boundary.
What is a transform boundary
The hottest layer of the Earth, this layer is solid metal
What is the inner core
Explain the difference between oceanic and continental crust
thinnest /densest under the ocean and thickest/ least dense under the continents.
What causes the plates to move?
Convection currents in the asthensophere
The two types of convergent boundaries
What is subduction (where volcanoes often occur) and collision (where mountains are usually formed)
DOUBLE JEOPARDY!
Explain the connection between the lithosphere, asthensophere, and movement of plates.
Lithosphere is broken into plates, which moves on the semisolid asthenosphere due to convection currents.