VOLCANOES
Volcanoes #2
Earthquakes
VOCABULARY
FILL IN THE BLANK
100
The volcano has erupted in the past 10,000.
What is an active volcano?
100
There are 4 of these.
What is how many types of eruptions?
100
most of these form along the plate _________________ because the pressure there is so great.
What is boundaries?
100
The snap and slide of rocks as energy is released in Earth's crust during this
What is an earthquake?
100
The rocks along the faults _______________ or stretch, almost like rubber bands.
What is bend?
200
An eruption starts with magma forced up by intense heat.
What is how a volcano erupts?
200
Shield, Cinder Cone, and Composite
What is the three categories of volcanoes?
200
If rocks stretch too far, they will snap and this will be released as they suddenly slide past each other.
What is energy?
200
a break in the Earth's crust where rocks slide past each other
What is a fault?
200
As earth's _________ move, pressure builds up along the plates ____________.
What is plates and faults?
300
Forms in the middle of a plate over a source of rising magma.
What is how hot spots form volcanoes?
300
This type of volcano occurs in a shield volcano.
What is a type 1 volcano?
300
The point inside the earth where an earthquake begins.
What is the focus?
300
this will electronically measure and record the motion caused by an earthquake's waves
What is a seismograph?
300
When an earthquake begins, the released energy travels away from the focus in___________.
What is waves?
400
The Ring of Fire / Pacific Ocean
What is where are most volcanoes located?
400
This eruption occurs in a composite volcano.
What is a type 2 eruption?
400
A type of wave that travels along Earth's surface and can shake the ground from side to side.
What is surface waves?
400
estimates the amount of energy released by an earthquake
What is a Richter Scale?
400
_____________ developed a scale that uses the size of waves recorded on a seismograph to determine how strong an earthquake is.
Who is Charles W. Richter?
500
One plate goes underneath the other. This causes part of the plate to melt into magma. The magma rises to the surface.
What is how the collison of two plates form a volcano?
500
Some erupt more if they are on a hot spot.
What is why do some volcanoes erupt continuously?
500
fastest waves that travel through solids, liquids, and gases
What are P-Waves (primary waves)?
500
powerful earthquakes that occur beneath the ocean may cause the ocean flow to rise and fall, which may lead to this.
What is a tsunami?
500
The point on Earth's surface directly above the focus of an earthquake is the __________________.
What is epicenter?
M
e
n
u