Layers of the Earth 1
Layers of the Earth 2
Continental Drift Theory
Plate Tectonics
Miscellaneous
100
The thinnest layer of the Earth
What is the CRUST?
100
The layer of Earth that YOU live on!
What is the CRUST?
100
The scientist who created the Continental Drift Theory
Who is ALFRED WEGENER?
100
Earthquakes and Volcanoes are usually located in close relation to these
What is a PLATE BOUNDARY?
100
The Himalayan mountains are the result of this type of boundary.
What is CONVERGENT boundary?
200
The inner core is made of iron and nickel in this state.
What is SOLID?
200
The thick, plastic-like layer of the Earth
What is the MANTLE?
200
Evidence from two separate continents supporting continental drift
What is FOSSILS found on both continents?
200
The mid-ocean ridge is an example of a this type of boundary and sea-floor spreading occurs here where new ocean floor is formed.
What is DIVERGENT boundary?
200
Hot air or liquid is less ________________ than cool air or liquide
What is dense
300
The outer core is made of iron and nickel in this state.
What is LIQUID?
300
Plates float on top of this layer, made up of the mantle.
What is the ASTHENOSPHERE?
300
Evidence of tropical plants were found on this continent
What is ANTARCTICA?
300
Name FOUR of the major plates
What is any of the following: North American plate, South American plate, Eurasian Plate, Indoaustralia plate, African plate, Antarctica plate
300
These are a result from the build up of stress at a plate boundary.
What are EARTHQUAKES?
400
The reason that the inner core is solid
What is PRESSURE from the other layers?
400
The rigid part of the Earth including the crust and the upper mantle (makes up the plates of the Earth)
What is the LITHOSPHERE?
400
Pangaea existed this many millions of years ago
What is around 250 million years ago?
400
This is the mechanism (what causes) the plates to move
What is CONVECTION CURRENTS in the mantle?
400
The San Andreas Fault in California is an example of this type of boundary.
What is a TRANSFORM boundary?
500
This layer is made of basalt or granite.
What is the CRUST?
500
The Earth's crust is thinnest under the _____________________ and thickest under the _____________________.
What is thinnest under the OCEAN and thickest under the CONTINENTS.
500
Continental Drift Theory was not accepted because it did not explain this
What is HOW the continents moved?
500
The two types of convergent boundaries
What is SUBDUCTION (where volcanoes often occur) and COLLISION (where mountains are usually formed)
500
Harry Hess used this to map the bottom of the ocean and discovered the mid-ocean ridge in the Atlantic Ocean.
What is SONAR?
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