Earthquakes: Seismic Waves
Stress that pulls and stretches rock is called
Tension
T/F
Stress adds energy to rocks
TRUE ALL DAY LONG
A huge hole left behind when a volcano collapses is a
Caldera
The viscosity of magma depends on two things, what are they?
Silica Content and Temperature
What is an example of a chemical property?
Anything that involves chemistry, being able to burn, being able to bond/react with other substances
What type of Fault is caused by compression?
Reverse
A creep meter does what?
Measures how far the sides of a fault have moved in opposite directions
When a volcano erupts quietly, what forms?
Shield Volcano
What is a mass of rock formed when a large body of magma cools inside the crust?
Batholith
What is an example of a physical property?
Anything you can physically see/touch/smell.
Color, Odor, Rough/Smooth
Seismic Waves that come first are called what?
P Waves
Which scale compares one Earthquake to another?
Richter
A wide gently sloping mountain is a
Shield Volcano
Very Hot magma produces lava called
Pahoehoe
What is viscosity?
A fluid's resistance to flow...
Honey, Oil, Water, all different viscosities
What are the three types of seismic waves?
P, S, and Surface Waves
Which scale is based on the amount of damage an Earthquake does?
Mercalli
What two types of volcanoes erupt explosively?
Cinder-Cone, Composite
How a volcano erupts depends on what?
The amount of silica present
When magma reaches the surface it is called?
Lava
Convergent=Compression=Reverse
Divergent=Tension=Normal
Transform=Shearing=Strike-Slip
Why is it difficult to predict when an Earthquake might occur?
Just because plates have moved does not mean there will be an Earthquake..
Stress adds energy but sometimes does not result in an Earthquake
What type of volcanoes are tall, cone-shaped mountains in which layers of lava alternate with layers of ash?
Composite
Hot spots can occur...
Far from plate boundaries....
YELLOWSTONE SUPER VOLCANO
Put these five substances in order from least viscous to most viscous (Milk, Vegetable Oil, Water, Honey)
1. Water
2. Milk
3. Vegetable Oil
4. Honey