Vocabulary 1
Vocabulary 2
Earthquake
Volcanoes
Misc.
100
An underground holding pool for hot magma is called a...
magma chamber
100
Melted rock that flows out onto Earth's surface is...
Lava
100
The place on the crust where earthquakes occur
Fault
100
When a volcano collapses into itself at its top, it forms a...
crater
100
Where do hot spots occur?
middle of the plates
200
Scientists measure earthquake waves with a...
seismograph
200
What is the source of energy for earthquakes?
Gravity
200
Name of the fastest waves an earthquake releases
P waves (primary)
200
Mountains made of lava layers that alternate with layers of cinders are called...
Composite volcanoes
200
If scientists detect many small earthquakes near a volcano, what can they infer?
The volcano might erupt soon
300
A vibration of Earth's crust is an...
earthquake
300
Hot melted rock that is underground is called...
magma
300
The minimum number of seismograph stations needed to find an epicenter.
3
300
What unique characteristic will magma have to create an explosive eruption?
High Silica content
300
How is heat transferred from the core to the mantle?
radiation
400
A large basin that is formed when a volcano collapses in on its self
Caldera
400
Earthquakes are the result of what type of energy transfer?
Mechanical motion to seismic waves
400
type of wave that can't travel through solids
S waves
400
The type of eruption that creates a shield volcano?
Quiet eruption
400
What is a major ingredient in magma?
Silica
500
Most of the magma from a volcano comes up through a rocky opening called a...
vent
500
The point of Earth's surface that is directly above an earthquake's focus is the...
epicenter
500
Name the three scales used to measure earthquakes
Richter, Mercalli, Moment Magnitude
500
Name one of two places where a volcano is most likely to form.
Plate Boundaries & Hot Spots
500
The point underground where the movement of the earthquake first takes place is called...
focus
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