Layers of the Earth
The densest layer of the Earth
What is the core?
In this kind of boundary, plates move away from each other
What is a divergent plate boundary?
This is an opening on the surface of a planet (or moon) that allows material warmer than its surroundings to escape from its interior
What is a volcano?
An earthquake's energy is released in this kind of wave
What is a seismic wave?
This a break in a body of rock where one block moves relative to another
What is a fault?
This rocky layer includes the surface of the earth
What is the crust?
In this kind of boundary, plates are moving towards each other.
What is a convergent boundary?
These volcanoes no longer produce eruptions, but they might again sometime in the future.
Dormant volcanoes
Most earthquakes occur where two or more of these meet
What is a tectonic plate?
This kind of seismic wave moves through Earth's interior, not its surface
What is a body wave?
The crust floats on this layer, which is made of molten rock
What is the mantle?
In this kind of boundary, two plates move past each other
These volcanoes have had recent eruptions or are expected to have eruptions in the near future.
What are active volcanoes?
This is a place deep within Earth along a fault where the first motion of an earthquake occurs
What is a focus?
This kind of body wave can only travel through solid rock
What is a s-wave?
This part of the core is made up of solid iron and nickel
Tectonic plates move because of these currents in the crust
What are convection currents?
This planet is home to the solar system's largest volcano, Olympus Mons
What is Mars?
This is the place on Earth's surface directly above the focus
What is the epicenter?
This is the fastest type of seismic wave
What is a p-wave?
Convection currents in this layer cause tectonic plates to form.
What is the mantle?
This is the name for the supercontinent formed when all the continents were together
What is Pangea?
Some of the moons in our solar system are this type of volcano, which erupt water and other gases
What are cryovolcanoes?
Undersea earthquakes can displace a huge amount of water and generate these series of extremely large waves
What is a tsunami?
This is the most destructive type of seismic wave
What is a surface wave?