True/False
The idea that the earth’s crust is made up of moving plates is called the theory of plate tectonics.
What is true
What is Ms. Fabian's favorite color?
Red, blue, pink, green
. ____ are slower destructive waves that occur on the surface of the earth.
Surface waves
A certain volcano is expected to erupt again within the next five years. It has a bowl-like crater at its top and only one main vent
active cinder cone volcano
An earthquake’s magnitude can be measured by ____ .
the Richter scale
Hot springs occur in places where water is heated by hot magma.
True
. Breaks in the earth’s surface along which rock can move are called
faults
. The ____ is the point on the earth’s surface directly above the focus of an earthquake
epicenter
Magma that breaks through the earth’s surface is called
lava
A ____ detects, times, and measures the movements of the earth.
seismograph
The area around the Pacific Ocean where many volcanoes occur is called the Lord of the Rings.
False; Ring of Fire
What type of fault occurs when rocks move apart, forming a gap
normal fault
Fast moving waves that occur beneath the surface of the earth are called
body waves
One danger of volcanoes is a ____, which occurs when part of a mountain collapses, causing mud and rock fragments to surge down the mountain.
debris flow
The beginning point of an earthquake is called its
focus
The lithosphere is located beneath the mantle of the earth
False; mantle
What fault occurs when rocks move horizontally past each other
strike-slip fault
. Vibrations of energy that flow from the focus of an earthquake are called
seismic waves
What could cause a volcanic eruption?
a hot spot heated magma rising to the surface
The strength of the seismic waves of an earthquake is called its
magnitude
Volcanic fog is called smog.
False; vog
What fault occurs when rocks push together, forcing a section of rock upward
thrust, or reverse fault
What causes an earthquake?
when molten rock moves under a volcano
the buildup and release of energy when two surface plates move or shift against each other
when large amounts of earth are removed or added
A ____, an avalanche-like emission of red-hot dust and gases from a volcanic eruption, killed the people of Pompeii.
pyroclastic flow
This large volcano seems to be layered, signifying that different types of lava flows have occurred in the past, but the volcano is presently inactive.
dormant composite cone volcano