chapter 6: earthquakes and volcanoes
DESCRIPTION
CHAPTER 6: EARTHQUAKES AND VOLCANOES. Lesson 2 : VOLCANOES. ??. Essential Questions. How do volcanoes form ? What factors contribute to the eruption style of a volcano ? How are volcanoes classified ?. Vocabulary. Volcano Magma Lava Hot spot Shield volcano Composite volcano - PowerPoint PPT PresentationTRANSCRIPT
CHAPTER 6: EARTHQUAKES
AND VOLCANOES
LESSON 2: VOLCANOES
Essential Questions
How do volcanoes form? What factors contribute to the eruption
style of a volcano? How are volcanoes classified?
??
Vocabulary
Volcano Magma Lava Hot spot Shield volcano
Composite volcano Cinder cone Volcanic ash Viscosity
What is a Volcano?
Volcano is a vent in Earth’s crust through which melted -or molten- rock flows. Molten rock below Earth’s surface is called magma
How do volcanoes form? Convergent Boundaries
Molten rock that erupts onto Earth’s surface is called lava
Divergent Boundaries Hot spots
Volcanoes that are not associated with plate boundaries are called hot spots
Where do volcanoes form?
The Ring of Fire
Where do volcanoes form? Volcanoes in the United States
Types of Volcanoes Shield volcanoes
Common along divergent plate boundaries and hot spots. Are large with gentle slopes
Composite volcanoes Large, steep-sided volcanoes that result
from explosive eruptions Cinder volcanoes
Small, steep-sided volcanoes
Volcanic Eruptions Eruption Style
Magma Chemistry Dissolved Gases
Effects of Volcanic Eruptions Lava Flows Ash Fall Mudflows Pyroclastic Volcanic Eryptions
Predicting Volcanic Eruptions
Volcanic Eruptions and Climate Change
Homework
Textbook: Page 211 #1-8 Workbook: Chapter 6 Write down question and
answer