Earth's Layers
This type of crust makes up land/the continents.
What is continental crust?
The type of tectonic plate motion at transform plate boundaries.
What is sliding?
This process slowly builds up Earth's surface by creating mountains.
What is mountain building?
The name of the most well-known supercontinent that existed on Earth's surface.
What is Pangea?
This type of crust is underneath the ocean.
What is oceanic crust?
This layer of Earth is where convection currents take place.
What is the mantle?
The type of plate boundary where plates move apart and spreading occurs.
What is a divergent plate boundary?
This process builds up Earth's surface through eruptions of magma from the mantle.
What is volcanism?
The theory that the continents were drifting across Earth, sometimes through oceans and into each other.
What is continental drift?
The major tectonic plate where the Ring of Fire is found.
What is the Pacific plate?
The liquid outer core creates this protective bubble around Earth.
What is Earth's magnetic field?
These cycles in the mantle cause tectonic plates to move.
What are convection currents?
This process slowly breaks down rocks on Earth's surface through external factors like the weather.
What is weathering?
Pangea existed this many years ago.
What is over 200 million years ago?
The two processes that break down Earth's surface and are typically paired together.
What are weathering and erosion?
This is the reason why the inner core is solid.
What is pressure?
The type of tectonic plate motion at convergent boundaries.
What is subduction?
This process slowly breaks down Earth's surface by wind and water moving broken rocks around.
What is erosion?
The evidence of Pangea that is the same composition and age along the coasts of separate continents.
What are rocks and fossils?
The modern theory of plate tectonics replaced this theory of the early 1900's.
What is continental drift?
This part of the mantle is mostly solid.
What is the lower mantle?
The name for the crust and top of the mantle which make up tectonic plates.
What is the lithosphere?
This process builds up Earth's surface almost immediately.
What is volcanism?
The scientist who first proposed the idea of Pangea in 1912.
Who is Alfred Wegener?
This is Ms. V.'s favorite season.
What is Fall/Autumn?