Supercontinent when all Earth land was connected 200 million years ago
100
What are fault zones?
Faults are cracks which occur when plates move past each other
100
What is the conduit.
Tube where magma rises through a volcano
100
Define Stratification
Forms in Layers
200
What is astronomy?
Study of everything outside the earth
200
Define the word Panthalassa?
Superocean surrounding Pangaea 200 million years ago
200
What is the elastic rebound theory?
As plates try to move past each other, they begin to bend as stress builds up. Eventually, the plates move past and the plates rebound back into shape causing an earthquake.
200
What is the volcanic layers
Hardened layers of lava that make up a volcano
200
Define Chemical
Dissolved Minerals Harden After Water Evaporates
300
What is the 2nd step of scientific method?
Gather information
300
Define magnetic Reversals?
The magnetic polarities (normal and reverse) match on both sides of the mid-ocean ridges
300
What is Intraplate Earthquakes?
Earthquakes that occur in the middle of plates and not at plate boundaries. Occur rarely and are not as powerful.
300
Define Subduction
One plate moves under another causing magma to be produced and makes volcanoes
300
Define Clastic
Made From a Collection of Smaller Rocks or Sand
400
What is the 3rd step of scientific method?
Form a hypothesis
400
Define Lithosphere
the rigid crust and upper mantle that sits on top of the asthenosphere.
400
What is Earthquake precursors?
Movements or changes in elevation. Changes in the water table.
400
Define Hot Spots
Magma rises from below the Earth’s plates in a location that is extremely hot
400
Name the characteristics of all minera
Solid
Inorganic
Occur Naturally
Orderly Crystalline Structure
Same Chemical Composition
500
What is the 4th scientific method?
Test the hypothesis
500
Define Athenosphere
Molten material below the lithosphere which causes plates to move
500
What is transform boundaries?
Plates move side by side past one another which can causes earthquakes. Ex. San Andreas Fault in California
500
Define AA
Cools quickly and has a jagged texture
500
Define Luster
Metallic or Nonmetallic – Metals are dark in color (Black, Silver, Gold, Copper), heavy, shiny