Vocabulary
The boundary formed when two plates collide.
What is convergent?
The thinnest layer of the Earth.
What is the crust?
He proposed the continental drift theory
Who is Alfred Wegener?
Where earthquakes and volcanoes usually form.
What is a plate boundary?
The Himalayan mountains are an example.
What is a continental-continental convergent boundary?
A number of rigid, but moving, pieces of Earth's surface
What are tectonic plates?
The layer of the Earth where convection currents form.
What is the mantle?
A piece of evidence supporting continental drift theory.
What is the location of fossils?
OR What is the location of coal fields?
OR What is the location of earthquakes and volcanoes?
OR what are the outlines of the continents?
The Mid-Atlantic ridge in Iceland is an example.
What is a divergent boundary?
The property that causes cool magma to sink.
What is dense?
Molten igneous rock that reaches the surface at divergent plate boundaries (for example)
What is magma?
The layer of the Earth that the tectonic plates float on top of.
What is the asthenosphere?
The hypothesis explaining how tectonic plates move.
What are convection currents?
They are here volcanic mountain ranges form.
What are continental-oceanic convergent boundaries?
The result of the build up of stress at a plate boundary.
What are earthquakes?
When one plate sinks into the mantle below another plate
What is a subduction zone?
When hot magma rises and cools, causing a fluid to move in a circular motion.
What is a convection current?
A supercontinent that existed ~250 million years ago.
What is Pangaea?
The only convergent boundary where magma doesn't reach the surface of the Earth.
What is continental-continental convergent boundary?
Faults are caused at these boundaries.
What is a transform boundary?
The hottest layer of the Earth
What is the core?
The youngest type of tectonic plates.
What are oceanic plates?
The reason Continental Drift Theory was not accepted by the scientific community until the 1960s.
What is the movement of the tectonic plates?
They are when two plates separate.
What are divergent boundaries?
The country that the volcano that Ms. Christy summitted is located in.
What is Ecuador?