Earthquakes
How Plates Move
Earthquakes and how they are measured
Volcanoes
Vocabulary
100
The outermost layer of the earth is called
What is the crust
100
Earth's plates are made of this
What is the crust and upper mantle
100
This is the point underground where the movement first takes place in an earthquake
What is the focus
100
This flows outside a volcano
What is lava
100
This is an underground holding pool for hot magma
What is a magma chamber
200
The thickest layer of the planet is called
What is the mantle
200
This can occur at places where one plate is pushed below another plate
What is a volcano
200
This is a break in the crust along which rock moves is called
What is a fault
200
The three types of volcanoes are called
What is shield, composite, and cinder
200
A large basin that can form at the top of a volcano
What is a crater
300
The three layers of the Earth are
What are the crust, mantle and core
300
This occurs when plates move past each other and get stuck and pressure builds
What is an earthquake
300
This is the point on the surface that is right above the focus
What is a epicenter
300
This is one harmful effect of volcanoes
What is the gases it produces and the destruction of the lava
300
The point on Earth's surface that is directly above an earthquake's focus is called
What is the epicenter
400
The layers of the earth that form plates that move
What is the crust and mantle
400
This happens when plates move apart
What is valleys and new ocean floor
400
This is the instrument that records earthquake waves
What is a seismograph
400
This is how volcanic mountains form on land
What is when lava and other kinds of volcanie materials build up to form a cone-shaped structure
400
Most of the magma from a volcano comes up through a rocky opening called
What is a vent
500
The Earth's core is made mostly out of which two metals
What is iron and nickel
500
This is the name of the long chain of mountains that run along the ocean floor in the middle of the Atlantic Ocean
What is the Mid-Atlantic Ridge
500
This is the scale used to measure the energy of an earthquake using numbers 1 through 9
What is a Richter Scale
500
This is how new ocean crust forms
What is when magma from the mantle rises toward Earth's surface, breaks through the ocean floor, and cools and hardens.
500
A volcano that is made up of layers of lava that alternates with layers of cinders is called
What is a composite volcano
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