Volcanic Eruptions 11/4/15 9-1/9-2 pgs. 222-229  IN: What is a volcano? Put your Vocab Sheet on the books.

Slides:

Advertisements

Similar presentations

Shield Volcano Built of layers of lava by repeated nonexplosive eruptions Lava is runny (low viscosity) Has gentle sloping sides Ex: Mauna Kea-tallest.

Advertisements

Volcanoes and their effects on Earth

Volcano Stations REVIEW. QUESTION #1 1.How are volcanoes considered both constructive and destructive forces in geology?

VOLCANOES form where molten rock is vented at Earth’s surface. Where do volcanoes form in the context of plate tectonics? Volcanoes aren’t equally dangerous....

Types of Volcanoes. Shield Volcano Built of lava released from repeated nonexplosive eruptions Lava is very runny and spreads out over a wide area Creates.

Two factors determine the type of eruption :  Amount of water vapor & other gases in the magma  The chemical composition of the magma Types of Volcanic.

Three different types of volcanoes exist; Volcano An opening in Earth’s crust through which igneous matter (lava, ash, cinder, and gases) are erupted.

Why do volcanoes erupt? Deep in the earth it is very hot. It is so hot that rocks melt. The melted rock is called magma. The magma is lighter than the.

Volcanic Landforms 6 th Grade. 2 Kinds of Volcanic Eruptions Quiet Eruptions: – If magma is low in silica – Lava is low in viscosity and flows easily.

3 TYPES OF VOLCANOES. SHEILD HOW DO THEY FORM? Thin layers of lava pour out a vent and harden on top of previous layers.

Volcanoes : Volcanic Landforms.

Volcano Notes. Anatomy of a volcano magma chamber pipe vent/crater lava tephra.

8th grade Physical Science

Volcanoes. Do Now 11/12/13 1.What is magma? 2.At which type of plate boundary are volcanoes most common? 3.Which mineral is the hardest? The softest?

Volcanoes. Parts of a Volcano magma chamber: a large reserve of magma that collects deep underground central vent: long tunnel which lava is pushed through.

“VOLCANOES” STUDY QUIZ. #1 ◦ The early Hawaiians told stories about volcanoes and Vulcan, their god of fire. ◦ True or False.

Volcanic Landforms & Eruptions

Volcanoes * There are 2 (main) kinds of Volcanoes 1.Steep sloped with violent (explosive) eruptions 2.Gentle sloped with voluminous lava flows Mount Fuji,

VOLCANOES. Pompeii, Italy Bodies… Terms to know… ► Magma- liquid rock ► Lava- magma that breaks through to the surface of the earth ► Vent- opening.

Volcanoes. Types of volcanoes 1. Shield Volcano Rounded, gentle slopes and large bases Lava is usually fluid and flows easily Ex. Hawiian Islands, Kilauea,

Volcano Notes. A Volcano is a mountain with a vent, cooled lava, ash, and cinders.

A volcano is a place (usually a mountain) where magma reaches Earth’s surface.

How do volcanoes form and what affect do they have on the Earth?

Objectives  I will know what earthquakes are and how they are monitored on Earth.  I will know how volcanoes are formed and what types of volcanoes are.

Volcanic Landforms 6 th Grade. 2 Kinds of Volcanic Eruptions Quiet Eruptions: – If magma is low in silica – Lava is low in viscosity and flows easily.

Volcanoes Chapter 6.

RAP 1.___cannot travel through liquids (earthquakes)

Chapter 4 Volcanoes. caldera A large circular depression, or basin, at the top of a volcano.

Volcanic Eruptions 11/5/14 9-1/9-2 pgs  IN: What do you think causes a volcanic eruption to sometimes be explosive and others to just run?

Volcanoes By Nicole Kawamoto. What is a Volcano? A volcano is a mountain that opens downward to a pool of molten rock below the surface of the earth.

Today’s Agenda…  Bellringer: What are compression, tension, and shearing? Use your notes on Earth’s plates.  Quiz  Notes on Volcanoes  Homework.

Volcanic Eruptions. Mafic Lava  Dark colored  Rich in magnesium and iron  Formed from oceanic crust  Cools rapidly.

Important Facts on Volcanoes

VOLCANOES ERUPTING MOUNTAINS. VOLCANOES What is a volcano? What is a volcano? A volcano is a mountain caused by erupting lava from the mantle. A volcano.

Volcanoes By: Cody and Jennifer. When a volcano erupts, it either has a lava flow or pyroclastic flow Magma that flows onto earth’s surface is called.

Volcano Stations REVIEW ANSWERS. ANSWER 1.Why are volcanoes considered a “window” into the Earth’s interior? They allow us to study material that comes.

Volcanoes 2. Shield Volcanoes: broad at the base with gently sloping sides Form from: quiet eruptions Example: Hawaiian Islands Types of Volcanoes.

Chapter 12 Section 4 - Volcanoes.  Movement along a fault causes a decrease in pressure – decompression  A decrease in pressure causes a decrease in.

What Causes Volcanoes? 11/9/ pgs IN: What causes volcanoes?

Volcanic Activity Earth Science Ch. 18. Factors affecting magma formation ► Pressure ► Temperature ► Water-causes rock to melt at a lower temp ► YouTube.

8.2 Notes Types of Volcanoes. Key Concept: Tectonic Plate Motions can result in volcanic activity at plate boundaries Which boundary has explosive volcanoes?

Volcanoes. Volcano: Opening in the earth through which lava flows and the material that builds up on the surface around the opening.

Learning Objectives I can explain how volcanic eruptions can affect climate. I can explain how volcanic eruptions can affect climate. I can compare the.

Volcano Notes Volcano – a place (usually a mountain) where magma reaches the earth’s surface.

Chapter 9 Volcanoes.

Volcano Stations REVIEW. QUESTION #1 1.How are volcanoes considered both constructive and destructive forces in geology?

Vulcan- Roman God of Fire

VOLCANIC ACTIVITY Unit 2 - Ch 10.

Monday October 31, 2016 Please take out: Vocab chart (homework)

Volcanoes and their effects on Earth

Volcanic Eruptions.

Place these notes in your Notebook.

1. List the volcanoes in order of steepness

Volcanoes Volcano – a mountain that forms when molten rock called magma is forced to the surface.

Volcano Diagram pyroclastic material

Anatomy of a Volcano.

Volcano Diagram pyroclastic material

Volcanic Eruptions.

1. List the volcanoes in order of steepness

Cornell Notes: Types of Volcanoes & Hot Spots

Volcanoes Chapter 10 - mountains created by rising magma Types

Presentation transcript:

Volcanic Eruptions 11/4/15 9-1/9-2 pgs  IN: What is a volcano? Put your Vocab Sheet on the books

Volcano  A mountain that forms when molten rock, called magma, is forced to the Earth’s surface.

Inside a Volcano

Volcanic Eruptions  Two kinds:  Nonexplosive  Explosive

Nonexplosive Volcano  Lava flows come from nonexplosive eruption.

What is difference between lava and magma? Magma is inside the Earth. Lava is on the Earth’s Surface.

Explosive Volcano  Clouds of hot debris and gases shoot out from the volcano often at supersonic speeds.

Pyroclastic Material  Rock fragments created by explosive volcanic eruptions.

3 Types of Volcanoes  Shield volcanoes  Cinder cone volcanoes  Composite volcanoes

Shield Volcanoes  Built out of layers of lava from repeated nonexplosive eruptions.

Hawaiian Islands

Cinder Cone Volcanoes  Small volcanic cones made entirely of pyroclastic material (explosive).

Sunset Crater – Flagstaff, AZ

Composite Stratovolcanoes  Form by explosive eruptions of pyroclastic material followed by quieter outpourings of lava.  Most common.

Mt. Fuji - Japan

Mt. St. Helens – Washington State

 OUT: Is a nonexplosive volcanic eruption more likely to produce lava or pyroclastic material? Explain. Glue in the diagram

Composite Volcano Shield Volcano Cinder Cone Volcano