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Objective: 19 November 2012. Compare and contrast the three types of volcanoes. Intro. Pick up worksheet (tape into notebook) Weekly Worksheet #13: Why do you think different eruption types make differently shaped volcanoes?. Types of Volcanoes. Types of Volcanoes. Shield Volcano.

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Objective: 19 November 2012

Compare and contrast the three types of volcanoes.

Intro

  • Pick up worksheet (tape into notebook)

  • Weekly Worksheet #13:

    • Why do you think different eruption types make differently shaped volcanoes?



Types of volcanoes1
Types of Volcanoes

  • Shield Volcano

  • Built from layers of runny lava from multiple quiet eruptions

  • Shallow, broad slope creating a flat, wide volcano

  • Example

    • Name: Mauna Kea

    • Location: Hawaii

Types of Volcanoes Flipchart pg. 2



Hualalai hawaii
Hualalai, Hawaii



Mt okmok alaska
Mt. Okmok, Alaska


Effects of volcanoes
Effects of Volcanoes

  • Composite Volcano

  • Alternates between quiet and violent eruptions

  • Creates alternating layers of lava and ash debris (tephra)

  • Broad bases and steep sides (looks like regular mtn.)

  • Example

    • Name: Mt. St. Helens

    • Location: Washington, USA

Types of Volcanoes Pg. 3




Mayon philippines
Mayon, Philippines


Popocat petl mexico
Popocatépetl, Mexico





Krakatoa indonesia
Krakatoa, Indonesia


Types of volcanoes2
Types of Volcanoes

  • Cinder Cone Volcano

  • Made mostly of pyroclastic material from moderately explosive eruptions.

  • Steep slopes but small in size

  • Tephra, cinders, ash, pyroclastic rocks

  • Example

    • Name: Paricutín

    • Location: Mexico

Types of Volcanoes Flipchart Pg. 4




Par cutin mexico
Parícutin, Mexico


Effects of volcanoes1
Effects of Volcanoes

  • Summary:

    • Describe a shield volcano.

    • Describe a composite volcano.

    • Describe a cinder cone volcano.


Objective: 19 November 2012

Compare and contrast the three types of volcanoes.

Outro

Which volcano type would you like to see erupt? Why?


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