Layers of the Earth
How many layers of earth are there?
What is four?
The Earth's crust, which is located under the ocean, is called.
What is the oceanic crust?
As you go deeper into the earth, temperature and density do what?
What is increases?
A volcano that has not erupted in over 10,000 years is called a
What is an extinct volcano?
A point within the earth where an earthquake took place is called.
What is the focus?
Which layer of earth floats on top of the mantle and consists of two types?
What is the crust?
This process occurs in the mantle and consists of cool magma sinking to the bottom of the mantle and hot magma rising to the top.
What are convection currents?
This plate boundary occurs when two plates are pulling away from each other. This plate movement results in volcanoes, mountains, islands, earthquakes, and deep ocean trenches.
What is the convergent boundary?
What are the simplest volcanoes that have sudden, violent eruptions and are made from cinders called?
What are cinder cone volcanoes?
What is a giant, dangerous ocean wave that is triggered by an earthquake?
What is a tsunami?
Which layer of earth is solid but can move due to intense pressure and holds the convection currents that cause plate movement.
What is the mantle?
The creation of new crust or ocean floor at a divergent plate boundary is called.
What is sea-floor spreading?
The Mid-Atlantic Ocean Ridge is an underwater mountain range that is constantly growing due to lava being pushed to the surface from the mantle. Which type of plate boundary created this mountain range?
What is a divergent boundary?
This type of volcano has both gentle and violent eruptions and makes up 60% of Earth's volcanoes.
What are stratovolcano or composite volcanoes?
A crack within the earth's rocky crust, where rock has been fractured, and where rocks move past each other, is called.
What is a fault?
Which layer of the earth is a solid ball of metal made mostly of iron?
What is the inner core?
The supercontinent, where all of Earth’s landmasses were once joined, is called
What is pangea?
California is prone to earthquakes because it lies along the San Andreas fault line. Which plate boundary causes earthquakes?
What is a transform boundary?
Which volcano is the largest and has slow, gentle eruptions where the lava can travel for miles?
What is a shield volcano?
What is the scale that measures the strength of an earthquake?
What is the Richter Scale?
This layer of earth is the only liquid layer and creates the earth's magnetic field.
What is the outer core?
Who is the German scientist who proposed the Theory of Continental Drift?
Who is Alfred Wegener?
When an oceanic crust and a continental crust converge(collide), the oceanic crust will dip under the continental crust. What is this area called?
What is a subduction zone?
This area of the world is prone to earthquakes and volcanic eruptions due to its location along a major plate boundary. It is located in the Pacific Ocean, and Hawaii is a part of it.
What is the Ring of Fire?
Scientists measure earthquakes with a tool called
What is a seismograph?