Lets Review……

Magma ChamberLies inside the earth.

Stores hot, melted rock called magma.

Central VentOpening at the top

of the volcano in which lava, pieces of rock and other materials pour out of.

ConduitVertical channel or

pipe in which magma moves up before it reaches the surface of the earth.

CraterBowl-shaped hole

which forms at the top of the volcano.

Lava FlowLava is very hot

when it erupts out of a volcano. The lava flows down the sides of the volcano. As it moves, the lava cools and hardens.

The Three Major Types of Volcanoes

Volcano number 1

Volcano number 2

Volcano number 3

•Volcanoes are classified by:•Their shape•The way they erupt•The materials from which they are formed

•There are three main types of volcanoes that we need to learn about. They are:•Cinder Cone Volcanoes•Shield Volcanoes•Composite Volcanoes

Cinder Cone VolcanoesCone shaped with very

steep sidesRelatively small-

usually less than 300m (984ft)

Built from lava fragments called cinders

Very little lavaEx: Paricutin in Mexico

and Stromboli in Italy

Shield VolcanoesLooks like a shieldLarge mountains with

gentle slopesFormed from lava that

flows slowly from a crack in the Earth’s curst

Ex: Mauna Loa located in Hawaii is the largest volcano on Earth

Composite VolcanoesLooks like and upside-

down V and has steep sides

Formed from the most explosive volcanoes

Eruptions usually occur without warning and can be very destructive

Layers of rock and lavaEx: Mount Fuji which is

located in Japan

What type of volcano am I?• I have large mountains with gentle slopes

Answer: Shield Volcano• I am built from lava fragments

called cindersAnswer: Cinder Cone Volcano

What type of volcano am I?• I am made up of layers of rock

and lavaAnswer: Cinder Cone Volcano• I produce very little magmaAnswer: Cinder Cone Volcano

What type of volcano am I?• I look like an upside-down VAnswer: Composite Volcano• I erupt usually without warning

and can be very destructiveAnswer: Composite Volcano

What type of volcano am I?• I am relatively small in size-

usually less than 300mAnswer: Cinder Cone Volcano• Formed from lava that flows

slowly from a crack in the Earth’s crust

Answer: Shield Volcano

What type of volcano am I?

What type of volcano am I?