Layers of Earth
What is the outer most and thinnest layer of Earth
Crust
What was the name of the supercontinent theorized by Alfred Wegner?
Pangaea
Body waves from an earthquake are made up of two parts, __ and ___ waves.
S- and P- waves
An area in which most of the worlds volcanoes are found…
The Ring of Fire
When two continental plates converge they can create…
Fold Mountains
Which layer of Earth experiences convection currents
Mantle
Two plates coming towards each other are called…
Convergent Plates
The first body wave to occur is the ___ wave.
P- wave
Two types of volcanoes are ____ and ____ volcanoes.
Cone and Shield
When a continental plate and an oceanic plate converge the oceanic plate will _____ because it is much more dense.
subduct
Which layer is made of solid iron and nickel
Two plates moving away from each other are called…
Divergent Plates
The body wave with more intensity is the ___ wave.
S- wave
Volcanoes with ____ lava are explosive.
Thick
When two plates at a transform fault become stuck and finally release it can cause an…
Earthquake
How do scientists know the make up the Earth’s layers if they have never dug farther than the crust
Two plates sliding past each other are called…
Transform Fault
P- and S- waves stand for _________ and ________.
Primary and Secondary
Volcanoes usually occur near the ____.
Coast
Melting lithosphere from a subducting plate can push through weak spots in the Earth’s crust to create a…
Volcano
Which layer is made of liquid hot magma
Mantle
The place where two plates meet is called a…
Fault
What causes the most casualties during an earthquake?
Falling structures/buildings
Volcanoes can be ____, _____, or _____ based on their activity.
Active, Dormant, and Extinct
Divergent oceanic plates contribute to…
Sea floor spreading