Vocabulary
This seismic wave moves the fastest and go travel through solids liquids and gases.
What is a Primary Wave or P wave?
The crustal plates move on top of this part of the Earth.
What is mantle?
This is evidence of a weak spot in Earth's crust where magma an reach the surface.
What is a volcano?
This factor has caused the most changes in the Earth's surface throughout history.
What is a movement of tectonic plates?
The Himalayan mountains are the result of a ___________________________ boundary.
What is convergent boundary
The thickest layer of the Earth
What is the mantle.
This is how crustal plates move when forming folded mountains.
What is they move toward each other-convergent boundary?
The material circulation beneath the crust that moves the crustal plates.
What is molten rock?
This is the cause of subduction.
What is one plate is less dense than the other?
A break in the Earth's crust where earthquakes occur.
What is a fault?
Plates float on top of the _______________________.
What is the asthenosphere
Compare transform boundaries and divergent boundaries.
What is transform boundaries slide past each other while divergent boundaries move away from each other?
These are formed at subduction zones.
What are volcanoes?
_________________ are a result from the build up of stress at a plate boundary.
What are earthquakes?
The theory that the continents were once a super continent.
What is Continental Drift?
This type of boundary is where subduction happens.
What is convergent boundary?
The San Andreas Fault in California is an example of a ____________________ boundary.
What is a transform boundary
This occurs when continental crust collides with another continental crust.
What is a mountain?
The Earth's crust is thinnest under the _____________________ and thickest under the _____________________.
What is thinnest under the ocean and thickest under the continents.
DOUBLE JEOPARDY
The mid-ocean ridge is an example of a ____________________ boundary and ___________________ occurs here where new ocean floor is formed.
What is divergent boundary; sea-floor spreading?
The two types of convergent boundaries
What is subduction (where volcanoes often occur) and collision (where mountains are usually formed)
DOUBLE JEOPARDY
This is the reason Iceland has so many active volcanoes.
What is it lies over 2 colliding tectonic plates?