Earth's Layers
Plate Tectonics
Mountain Building
Volcanoes
Earthquakes
100
The crust, mantle, and core.
What are the layers on Earth divided by chemical composition?
100
The types of tectonic plate boundaries.
What are divergent, convergent, and transform boundaries?
100
The three kinds of faults.
What are normal, reverse, and strike-slip faults?
100
A place where ash, melted rock, or gas come out of the ground.
What is a volcano?
100
A natural disaster that occurs when energy is released when blocks of rocks move suddenly, shaking the ground.
What are earthquakes?
200
The lithosphere, asthenosphere, mesosphere, outer core, and inner core. 
What are the layers on Earth based on physical properties?
200
Pieces of the lithosphere moving on the asthenosphere.
What are tectonic plates?
200
The three kinds of mountains.
What are folded, volcanic, and fault-block mountains?
200
Places where volcanoes form.
What are plate boundaries or hot spots?
200
Places where most earthquakes occur.
What are tectonic plate boundaries?
300
One of Earth's physical layers, which is made of slowly moving, solid rock.
What is the mantle?
300
The single, large landmass that existed 245 million years ago and eventually broke apart to form the continents.
What is Pangaea?
300
The two kinds of folds.
What are synclines and anticlines?
300
The three types of volcanic mountains.
What are shield, cinder cone, and composite volcanoes?
300
The place inside Earth where the first movement of the earthquake takes place.
What is the focus?
400
One of Earth's compositional layer that is believed to be made up of mostly iron and nickel. 
What is the core? 
400
The process where magma rises through cracks in the ocean floor, cools and forms new crust, and pushes the old crust away in opposite directions.
What is sea-floor spreading?
400
When rock changes shape under stress.
What is deformation?
400
Magma that has reached Earth's surface.
What is lava?
400
After elastic deformation, the process where the rock returns to its original shape.
What is elastic rebound?
500
The outermost physical layer of Earth.
What is the crust?
500
The man who first proposed the idea of continental drift in the late 1800s. 
Who was Alfred Wegener? 
500
The three kinds of stress.
What is shear stress, tension, and compression?
500
Five examples of volcanic landforms.
What are volcanic mountains, fissures, lava plataeus, craters, and calderas?
500
Long waves that form after an underwater earthquake that can be deadly when they reach land.
What is a tsunami?
M
e
n
u