3 types of volcanoes!

What are they?

Volcano A cone which is formed above and around

a vent by layering erupted volcanic material like lava, ash and cinders.

A vent is… An opening in the earth’s crust surface through

which volcanic materials are released

Mount St. Helen’s, Mt. Vesuvius Stratovolcano or Composite volcano Violent eruptions when plugged with thick

magma (Viscosity: high, Gas: high) Ash, cinder and lava are blown out of the

volcano These form the layers from which it is

made.

Mount St. Helen’s

Hawaiian Islands, Mauna Loa Shield volcano Largest volcano of the 3 Continuingly active Has gentle slopes Viscosity: Low Gas: Low Layers are made from cooled lava

Paricutin, Stromboli Cinder cone volcano Smallest of the 3 types Steep sides and large

bowl shaped crater Ash and cinder form its layers Viscosity: medium/low Gas: medium/high

Vocabulary for Word Walls See http://maccallum.wikispaces.com

Lesson 7

Volcano chant example:Before the volcano erupts without a doubtYou have got to goOr the pyroclastic flowWill cover and burn. You, you, you.With a gaseous, super heated cloud,Everything in its path it will shroudWhile moving at 800km/hourNo time to cower. Cower. Cower.Ash and cinder will rain downThis stratovolcano eruption could wipe out the town!Another Pompeii? Not today!Mt. Vesuvius…can try to test,But I’ll listen to the vulcanologistsPack my bags and move away!

How many volcano vocabulary words did I use?

What is it about?