Show:
Volcano Classification
Earth Layers
Layers of Earth
Volcanoes
Rock Cycling
100

Gently sloping volcano includes slow flowing black lava (mafic basalt). 

Shield Volcano

100
Melted rock that flows out onto Earth's surface is...
Lava
100

Name the first layer of Earth. (on Earth's surface) is the _____________ and is composed of ______________ and granite

crust; basalt

100
When a volcano collapses into itself at its top, it forms a...
crater
100

Earth's crust and upper mantle are broken into several...____________ plates.

At one time a supercontinent was called ______________

plates; Pangaea

200

Scientists measure earthquake waves with a...

seismograph

200
If you somehow dug down to Earth's center, the first two layers you would pass through are the...
crust and mantle
200
Name the middle layer of Earth.
mantle
200
Mountains made of lava layers that alternate with layers of cinders are called...
Composite volcanoes
200
The plates of Earth's crust and mantle can NOT usually move... a)toward each other b) away from each other c)very slowly d)Very quickly
very quickly
300

Most volatile (explosive) volcano type. 

Often characterized by a smaller crater. 

Cinder Cone

300
Hot melted rock that is underground is called...
magma
300
Name the deepest layer of Earth.
core
300
Volcanoes can be useful to peoople because volcanoes...
add minerals to the soil.
300

__________ weathering often leads to deposition which forms layers of rocks. 

These rocks are called _________________

Chemical (Acid Rain)

Sedimentary

400
Ash or __________ is often ejected from a volcano and can begin to form its exterior. 

Tephra. 

400

The deepest layer of Earth is the...  and includes the following elements _____________

core- Iron and Nickel

400
What is the crust made of?
plates
400
A moutain that forms from lava is a ...
volcano
400
Ash/Tephra ejected from mantle/magma will form ____________ rocks


All three rock types can "morph" into one another. 

These other 2 types include: _____________________

igneous rock

Metamorphic 

Sedimentary

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

The constant motion of plates lead to.... (name 2 things)

earthquakes, mountain building, volcanoes

500
Name one of two places where a volcano is most likely to form.
where plates move toward each other, in the ocean where plates are moving away from each other.
500
The point underground where the movement of the earthquake first takes place is called...
focus