Layers o' da Earth
the outer most layer of the Earth
What is the crust?
Shaking due to the shifting of tectonic plates
What is an earthquake?
He came up with the theory of plate tectonics
Who is Alfred Wegner?
the two key words in a hypothesis
What are "if" and "then"?
The variable represented on the x-axis
What is the independent variable?
the densest layer of the earth
What is the Core?
The Mercalli scale and the Richter scale.
What are ways to measure Earthquakes?
Divergent plates under the ocean
What is seafloor spreading?
A hypothesis that has not been proven false after many, many attempts
What is a theory?
The variable represented on the y-axis
What is the dependent variable?
the widest, middle layer of the earth
What is the Mantle?
plates that move away from each other
What is a divergent boundary?
fossils and rock layers support this theory
What is the Theory of Plate Tectonics?
A theory that has not been proven false after many, many attempts
What is a law?
This group provides baseline data
What is the control group?
bottom layer of the Crust
What is the Lithosphere?
Tectonic plates that move closer to each other
What is a convergent boundary?
Earth's single land mass about 250 million years ago.
What is Pangaea?
It is testable
What is a hypothesis?
The 'effect' in the cause and effect
What is the dependent variable?
the top layer of the mantle
What is the Asthenosphere?
tectonic plates that slide past each other
What is a transform boundary?
An oceanic plate sliding beneath a continental plate
What is subduction?
It is repeatable
What is a hypothesis?
The 'cause' in the cause and effect?
What is the independent variable?