Earth
This layer of the earth is innermost layer that is thought to be a "solid ball of metal"
What is the inner core
The machine scientists use to measure earthquake waves.
What is a seismograph?
This is the hot liquid found inside a volcano.
What is magma?
The tube that most of the magma from a volcano comes up through.
What is a vent?
The most likely cause of the formation of an island.
What is a volcanic eruption?
This layer is made of solid rock and is only 5-25 miles thick.
What is the crust?
The point underground where the movement of an earthquake first takes place.
What is the focus?
When magma comes out of the volcano it becomes ______________.
What is lava?
Earth's crust contains ocean basins and large pieces of land called_______________.
What are continents?
A large destructive wave of ocean water that can form after a major natural disaster and can cause damage to coastal regions.
What is a tsunami?
This layer is around 1,802 miles thick and consists of hot, dense, semi solid rock.
What is the mantle
What is the epicenter?
The crust of the earth is broken into about 20 pieces called ______________
What are tectonic plates?
A large basin that can form at the top of a volcano.
What is a crater?
When a volcano collapses into itself its tops forms a _________________.
What is a crater?
This layer of the Earth is made of liquid iron and nickel.
What is the outer core?
The place where most earthquakes occur.
What are faults?
The theory that the continents are moving at a rate of about an inch per year is the _________________ theory.
What is the Continental Drift theory?
The underground holding pool for hot magma.
What is a magma chamber?
The layer of the earth where oil, coal, and natural gas can be found.
What is the crust?
When this layer begins to melt, magma is formed.
What is the mantle?
The vibrations produced when energy builds up and is quickly released along a fault.
What is an earthquake?
The three types of volcanoes.
What is cinder cone, composite, and shield volcanoes?
A mountain that forms from lava.
The three ways plates move.
What is away from each other, towards each other, and sliding past each other?
The scale used to measure the energy released by the earthquake-uses numbers 1-9.
What is the Richter scale?
The two ways volcanoes build the land.
What is ocean crust and mountains?
A break in the crust along which rocks move.
What is a fault?
The scale that measures the movement and damage that an earthquake causes. It uses the numbers I to XII.
What is the Mercalli Scale?