Earth's Layers
Continental Drift
Earthquakes and Volcanoes
Plate Tectonics
Sea-Floor Spreading
Rocks
A little bit of this. A little bit of that!
100
The two parts of the mantle.
What are lithosphere and asthenosphere.
100
He developed the theory of continental drift
Who is Alfred Wegener?
100
A tool used to measure strength of ground movement.
What is a seismometer?
100
Divergent
What is a plate boundary where two plates spread apart and form mid-ocean ridge, rift valleys or sea-floor spreading?
100
An undersea mountain range where new ocean floor is formed.
What is a mid-ocean ridge?
100
Made from hardened magma or lava
What is igneous rocks?
100
A map that shows the elevation of the land
What is a topography map?
200
The crust is made up of
What is basalt and granite?
200
3 pieces of evidence used to support the theory
What are fossils, landforms, and climate?
200
A crack in Earth's crust caused by plate movement
What is a fault?
200
Convergent
What is a plate boundary where two plates come together?
200
Sea-Floor Spreading
What is the process where the ocean floor spreads apart along at the mid-ocean ridge, creating new crust?
200
Formed by erosion, deposition, compaction and cementation
What are sedimentary rocks?
200
Difference in elevation represented by each line
What is a contour interval?
300
It is made mostly of the metals iron and nickel.
What is the inner core?
300
Why was this theory not supported at first
What is Wegener couldn't explain HOW continents moved?
300
A point below Earth's surface where Earthquakes begin
What is focus?
300
Transform
What is a plate boundary where two plates slip past each other and form faults and cause earthquakes?
300
Evidence to support the sea-floor spreading theory.
What are rock types, magnetic strips, and rock age?
300
One rock undergoes extreme heat and pressure and "morphs" into a different rock
What are metamorphic rocks?
300
Line joining points of equal elevation
What is a contour line?
400
Made up of hard rock and soft molten material
What is the Lithosphere and Asthenosphere?
400
Large landmass before continents drifted apart
What is pangaea?
400
Point directly above focus on Earth's surface
What is an epicenter?
400
The two types of convergent boundaries.
What are plates colliding with each other to create mountain ranges and volcanoes and plates converging under the ocean resulting in subduction trenches?
400
Discovered both near and far from the ridge. These rocks form when magma erupts and quickly cools in cold water.
What are "pillow rocks"?
400
A diagram that explains how rocks can change from one type to another
What is the rock cycle?
400
Igneous Rock 
What is letter J?
500
Made up of liquid iron and nickel?
What is the outer core
500
How did fossils supported the theory
Fossils of tropical plants were found in polar-like regions and fossils of similar reptiles were found on many different continents.
500
An active volcano
What is a volcano that is currently erupting or likely to erupt soon.
500
The formation, movement and subduction of tectonic plates
What is the theory of plate tectonics?
500
Alternating magnetic pattern on the ocean floor. Earth's magnetic field alternates throughout history. The pattern on one side of ridge matches the other side.
What are magnetic stripes?
500
Breaks rocks into small sediment
What is erosion?
500
Sediment
What is letter n?
600
The difference between oceanic and continental crust
What is oceanic crust is thinner and made of basalt and continental crust is made of granite and is thicker?
600
How did landforms supported the theory
There were matching mountain ranges on S. America and Africa. Continents seemed to fit like puzzle pieces.
600
Dormant
What is "sleeping"- may erupt in the distant future.
600
Causes plates to move
What are convection currents?
600
Youngest rock is found near ridge and older rock is found far from the ridge. Crust is pushed away, taking rock with it.
What is rock age?
600
Sediment settles to the ground
What is deposition?
600
Metamorphic Rock
What is letter K?
700
How did climate support the theory
Tropical species were found in polar regions. Evidence of glaciers were found in tropical areas.
700
Extinct
What is a volcano that is "dead" unlikely to erupt ever again?
700
Volcanoes form at these two types of boundaries
What are convergent and divergent?
700
Layers of sediment pile up increasing the pressure
What is compaction?
700
Magma
What is letter m?
800
Area along Pacific Coast where many active volcanoes are found.
What is the Ring of Fire?
800
Crystallization occurs, creating solid rock
What is cementation?
800
Melting
What are letters c and d?
900
Heat and Pressure
What are letters a and b?
1000
Weathering
What are letters f, e and g?
1100
Compaction
What is letter h?