Plate Tectonics
This is the name for the large pieces of Earth's crust that move around.
What are tectonic plates?
This scientist proposed the theory of continental drift.
Who is Alfred Wegener?
This type of plate boundary occurs where plates collide.
What is a convergent boundary?
This is the point on Earth's surface directly above the focus of an earthquake.
What is the epicenter?
This is molten rock beneath the Earth's surface.
What is magma?
The Earth's crust and upper mantle are divided into how many major plates?
What is 7?
This was the name of the supercontinent that existed millions of years ago.
What is Pangaea?
This type of plate boundary occurs where plates move apart.
What is a divergent boundary?
This is the instrument used to measure the magnitude of an earthquake.
What is a seismograph?
This is molten rock that erupts onto the Earth's surface.
What is lava?
This layer of the Earth is responsible for the movement of the tectonic plates.
What is the mantle?
This type of fossil evidence supports the theory of continental drift.
What are matching fossils found on different continents?
This type of plate boundary occurs where plates slide past each other.
What is a transform boundary?
This scale is used to measure the magnitude of an earthquake.
What is the Richter scale?
This type of volcano is formed from alternating layers of lava and ash.
What is a composite volcano?
This is the name of the theory that explains how the Earth's plates move.
What is plate tectonics?
The theory of continental drift was not widely accepted at first because Wegner could not explain this.
What is the mechanism for how the continents moved?
This landform is often created at convergent plate boundaries where two continental plates collide.
What are mountains?
Most earthquakes occur along these geological features.
What are faults?
This type of volcano is broad and gently sloping, formed from fluid lava flows.
What is a shield volcano?
This is the process that drives plate movement, involving the rising of hot material and sinking of cooler material.
What is thermal convection?
These mountain ranges on different continents provide evidence for continental drift.
What are the Appalachian Mountains and the Caledonian Mountains?
This feature is created at divergent plate boundaries in the ocean.
What is a mid-ocean ridge?
These are the smaller earthquakes that often follow a larger earthquake.
What are aftershocks?
This famous volcano destroyed the Roman city of Pompeii.
What is Mount Vesuvius?