 Chapter 5: Volcanoes ES 5.2 Volcanic Eruptions.

Slides:

Advertisements

Similar presentations

Volcanic Activity.

Advertisements

REVIEW FOR CHAPTER 6 – VOLCANOES. Where can we find volcanoes on earth? Most volcanoes are found near subduction zones and mid-ocean ridges. This explains.

Welcome to Science 10/20 Today’s Schedule 1. Question of the Day

WARM UP!!! Thursday 1/31/08 Describe a magma chamber!

Welcome to Science 10/25 Get out your lab sheet. You have 3 minutes to create the type of volcano listed on your card. Have your group help you if needed.

Volcanoes Volcanoes occur most frequently at plate boundaries. Some volcanoes occur in the interior of plates in areas called hot spots. Most of Earth’s.

Volcanoes Chapter 6.

Chapter 18 Volcanoes Section Two Volcanic Activity.

Chapter 5 Section 2: Volcanic Eruptions. Directions : Define the following terms. 1. Magma chamber1. Magma collects in a pocket beneath a volcano 2. pipe2.

Volcanoes Nat Geo. Volcanic Eruptions (pages 209–216)

Chapter 10 Volcanoes.

The Changing Earth: Chapter 3 Mountains and Volcanoes

Volcano Flip Book Answers

Chapter 7 Sections 3 & 4 volcanoes.

VOLCANOES Sections 1 and 3 A volcano is a weak spot in the crust where molten.

Complete the paragraph below Lava begins as, which usually forms in the asthenosphere. The materials of the asthenosphere are under great pressure. Liquid.

Volcanic Eruptions and Volcano Type. What is a volcano? A volcano is any place where gas, ash, or melted rock come out of the ground.

Volcanoes Magma Reaches the Earth’s Surface KEY CONCEPT:When a Volcano erupts, the force of the expanding gases pushes magma from the magma chamber through.

Volcanic Activity EQ: What occurs when a volcano erupts? How do the different type of eruptions differ?

Inside Earth: Chapter 3- Volcanoes

Volcanic Activity.

Volcanic Activity.

Inside Earth: Volcanoes

Volcanic Eruptions 7.3 p

When subduction occurs, the crust is weakened by the collision, and cracks can form. Lava can break through the cracks and form a volcano!

Volcanic Activity. Silica  Earth’s crust and mantle are mostly made of silica The more silica in the magma, the thicker it is.

VOLCANOES YEAR 7.

III. Section 3 Volcanic Eruptions. A. Magma Reaches Earth’s Surface 1.Magma chamber- magma collects in a pocket 2.Pipe- the magma moves through which.

VOLCANOES. What is a Volcano? A volcano is a weak spot in the crust where Magma, comes to the surface. Volcanic activity is a constructive force that.

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 Chapter 3 book F page 82.

Volcanic Activity. Magma Reaching the Surface Materials of asthenosphere under great pressure Materials of asthenosphere under great pressure Magma less.

Volcanic Landforms & Eruptions

Science ~ chapter 6 volcanoes

Volcano Types and Volcanic Eruptions.

CH 6 Prentice Hall p CH 6 Prentice Hall p Volcanoes & Plate Tectonics.

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

Lesson 27 What are volcanoes?.

Volcanic Eruptions Chapter 5.2. Magma becomes a volcano: Lava usually begins as magma, which usually forms in the asthenosphere. Liquid magma is less.

Volcanoes How they change the surface of Earth!. Before eruptionAfter Eruption Mt. Saint Helens A volcano is a weak spot in the crust where magma is expelled.

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

Structure of a Volcano.

Volcanic Eruptions Chapter 3-3. Inside a Volcano.

Chapter 6 Volcanoes Review Game. Rules Coin toss for 1 st question Team will answer the question, random selection Correct answer gets the team a point.

Volcanic Eruptions ch. 6 section 2

Table of Contents Essential Question: How Does A Volcano Erupt? What happens when a volcano erupts? What are the stages of Volcanic activity? 6.2 Volcanic.

Volcanic Eruptions. Hawaii – many myths about Pele, the fire goddess of volcanoes Pele lives in the depths of Hawaii’s erupting volcanoes When Pele is.

Volcanoes. Volcano Volcano is a weak spot in the crust where molten material or magma comes to the surface. Magma is a molten mixture of rock forming.

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

Volcanoes – Ch. 6 Review for Test. Volcanoes  What’s the difference between magma and lava?  There are two areas that volcanoes occur. What are they?

Volcanoes A volcano is a weak spot in the crust where the molten material, or magma, comes to the surface.

Volcanic Eruptions VOLCANOES. WHAT HAPPENS WHEN A VOLCANO ERUPTS? Lava begins as magma. Magma usually forms in the somewhat soft layer of hot, solid rock.

Volcanoes Chapter 3 Section 2 Volcanic Activity. Characteristics of Magma Lava begins as magma in the mantle How does magma rise? Magma is less dense.

Vocabulary 1.6 Volcanoes 1.Volcano: A weak spot in the crust where magma has come to the surface. 2.Hot Spot: An area where magma from deep within the.

Volcanoes. Volcanic Activity Stages of a Volcano Active: Erupting or showing signs of an eruption in the near future Dormant: volcano not currently erupting.

Do Now Take out your Volcanoes homework reading and keep it on your desk. On your homework or on a piece of paper, write: 3 things you know about volcanoes.

Three Types of Volcanoes

Volcanoes Chapter 7.

Chapter 6: Volcanoes.

Volcanic Eruptions 3.3 Objectives:

Volcanic Eruptions.

What is a Volcano A volcano is a weak spot in the crust where molten material, or magma, comes to the surface. Magma is a molten mixture of rock –forming.

Let's Play "Volcanic Jeopardy"

5.1 Volcanoes and Plate Tectonics

Warm-Up: Fri 2/21 Write What You Know!

Volcanic Activity.

Get Ready for an ERUPTION!!!

7.3 volcanic eruptions What happens when a volcano erupts? What are the two types of volcanic eruptions? What are a volcano’s stages of activity? Key terms:

Volcanic Eruptions.

Presentation transcript:

 Chapter 5: Volcanoes ES 5.2 Volcanic Eruptions

Inside a Volcano  Magma Chamber : Collection of magma under volcano  Pipe : Long tube connecting chamber to surface  Vent : Opening at top (or sides) where magma leaves volcano  Lava Flow : The spread of lava on the surface  Crater : Bowl shaped feature at the top of volcano that surrounds the vent

Volcanic Eruptions  When a volcano erupts, the force of the expanding gases pushes magma from the magma chamber to the pipe until it flows or explodes out of the vent.  Mt. St. Helen’s Volcanic Eruption 

Types of Eruptions  Explosive Eruption :  High Silica Content  Thick and Sticky  This magma builds up in the pipe  This build up traps gases  Then BOOM!!!  This eruption spreads ash, cinders, and bombs!

Types of Eruptions  Quiet Eruption:  Hot and/or Low Silica Magma  Thin and Runny/Flows Easily  Produce different types of Lava; creating different type of igneous rock  Hawaii was formed by Quiet Eruptions

Hazards of Quiet Eruptions  Quick moving lava ran burn and bury everything in its path  Video of slow moving Lava destroying Hawaii  CmXyTE CmXyTE CmXyTE

Hazards of Explosive Eruptions  Pyroclastic Flows : A hot, quick moving cloud of ash, cinder, and bombs that moves down the side of a volcano  Video of Pyroclastic Flows: Ted6g Ted6g Ted6g

Stages of Volcanoes  Active : A volcano that is erupting or showing signs of eruption in the near future  Dormant : aka Sleeping… Expected to be active in the near future  Extinct : aka Dead… Unlikely to ever erupt again. (Ex: hot spot volcanoes)