Theories
Boundaries 1
Boundaries 2
Tectonics
Geologic Time
100
All of the continents were once called
What is Pangea?
100
What was discovered by Hess's experiments with Sonar
What is the MOR?
100
This landform is found at the site of ocean - continent and ocean- ocean convergent boundaries
What are volcanoes?
100
This is the way continents move
What are convection currents in the mantle?
100
The type of geologic dating that depends on the level of rock a fossil is found in
What is relative dating?
200
Came up with the theory of Continental drift.
Who was Wegener ?
200
The type of boundary the MOR is
What is a divergent boundary?
200
This land formation forms from Continent-continent boundaries
What are mountain chains
200
The way scientists discovered that the rocks farther from the MOR were older than ones closer
What is drilling and determining the age of the rocks?
200
The method used by scientist to determine the exact date of a fossil or rock
What is Radioactive dating?
300
The author of the theory of continental drift was ridiculed for his theory because
What is he could not come up wth a mechanism of how the continents moved?
300
This happens to the old ocean floor when new ocean floor is created.
What is it is subducted and melted down at the continents?
300
This type of boundary causes earthquakes
What is a transform boundary
300
This theory states that pieces of the earth are in constant motion.
What is the theory of plate tectonics?
300
They are buried in sediments and are remains of ancient life
What are fossils?
400
The three discoveries that were used to explain continental drift by its preponent.
What are 1.how the continents fit like a jigsaw puzzle 2. fossils 3 . mountain chains and rock formations
400
It is the process by which the ocean floor sinks under a deep ocean trench
What is subduction?
400
They are the two categories of boundaries
What are 1. convergent 2. divergent
400
This is the number of MAJOR tectonic plates
What is 12?
400
This is the process by which all living things are changed over time.
What is evolution?
500
He helped prove the theory of continental drift using sonar.
Who was Hess?
500
This is created when the MOR is formed
What is a rift valley>
500
The three types of boundaries are
What are 1. Ocean - Ocean 2. Ocean - Continent 3. Continent - Continent
500
The place in the Earth where scientists believe convection currents are
What is the mantle?
500
This is record of the life forms and geologic events in Earth's history
What is the geologic time scale?
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