The inside of Earth
Structure of the Earth
Continental Drift Theory
Plate Tectonics
Miscellaneous
100
The thinnest layer of the Earth.
What is the crust?
100
There are ______________ main layers of the Earth.
What is four?
100
Created the Continental Drift Theory.
Who is Alfred Wegener?
100
Earthquakes and Volcanoes are usually located in relation to these.
What is a plate boundary?
100
The Himalayan mountains are the result of a ___________________________ boundary.
What is convergent boundary
200
The part of earth where there is loose soil and topography.
What is the lithosphere?
200
The thickest layer of the Earth.
What is the mantle?
200
Evidence of matching animal fossils from two separate continents _____________________ and _____________________
What is Africa and South America?
200
The mid-ocean ridge is an example of a ____________________ boundary and ___________________ occurs here where new ocean floor is formed.
What is divergent boundary; sea-floor spreading?
200
Hot air or liquid is less ________________ than cool air or liquid.
What is dense
300
The liquid-like part of earth.
What is the mantle?
300
Plates float on top of the _______________________.
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
_________________ are a result from the build up of stress at a plate boundary.
What are earthquakes?
400
This occurs due to convection currents in the mantle.
What is sea-floor spreading, earthquakes, and mountain building?
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 a ____________________ boundary.
What is a transform boundary
500
Although the hottest layer of the Earth, this layer is solid metal.
What is the inner core?
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
This person used sonar to map the bottom of the ocean and discovered the mid-ocean ridge in the Atlantic Ocean.
Who is Harry Hess?
M
e
n
u