Active EarthActive EarthVolcanoes and EarthquakesVolcanoes and Earthquakes

We are learning to understand We are learning to understand that there are different types of that there are different types of

volcanoes.volcanoes.

Odd one OutOdd one Out

Ash

Gas

Magma

Lava

Floods and Mudflows

Disease spreads

People evacuated

Sap in trees boils

Volcanologist

Plate

Crust

Mantle

Asia

United States of America

Eurasian

Juan de Fuca

Are all Volcanoes the same?Are all Volcanoes the same?

Where are the earths plates?Where are the earths plates?

Starter: Starter:

• Complete the word search.

• What do each of the words mean, on the Back of the sheet write a simple definition of 5 of the words you know.

Composite Cone

The volcano is built up of alternate layers of LAVA and ASH. They can explode with great violence.

Mt St Helens - USA

Conelet

Dyke

Crater

Ash layer

Lava Layer Flank eruption

LavaFlow

Crust

Pyroclastic Flow

Mount Saint Helens, USAMount Saint Helens, USA

Shield ( Basic) Cone

Shield Volcanoes are enormous featuresbuilt up only from layers of lava. They produce lots of lava but they tent not to erupt violently.

Mauna Loa Hawaii -USA

250 miles

10,000m

Composite volcano to scale

Layers of Lava Lava Flow

Mauna Loa, HawaiiMauna Loa, Hawaii

Soufriere Hills, West IndiesSoufriere Hills, West Indies

Ash and Cinder ConeParacutin - Mexico

Layers of Ash and Cinder

Volcanic Bombs

Pipe

The volcano is built up of layers of ASH. When it erupts it is normally with great explosive force.

3,000m

Heimaey, IcelandHeimaey, Iceland

MainMain

• Copy the Volcano Type diagrams, give and example of each.

Active EarthActive Earth

You should:

• Know some key volcano words.

• Understand that there are different types of volcanoes.