Rosario

Name ___________________________ Chapter 10

maria acuapa

p:3 Class ___________________

1-29-13 Date _____________

Volcanoes and Other Igneous Activity

Section 10.1 The Nature ofVolcanic Eruptions
This section discusses volcanic eruptions, types of volcanoes, and other volcanic landforms.

Reading Strategy
Previewing Before you read the section, rewrite the green topic headingsas questions. As you read, write the answers to the questions. For more information on this Reading Strategy, see the Reading and Study Skills in the Skills and Reference Handbook at the end of yourtextbook.
The Nature of Volcanic Eruptions What factors affect an eruption?
What are the three main types of volcanoes? What materials are ejected from volcanoes?

a. volcanoes eject molten rockthat formed at great depth, they provide

opportunities to observe the processes that occur deep beneath Earth’s surface.

What determines the type of volcanic eruption?

Factors AffectingEruptions
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1.

What are three factors that determine how violently or quietly a volcano erupts? magma composition,magma temperature,

and the amount of dissolved gases in the magma.

2. Circle the letter of the term that describes lava’s resistance to flow. a. temperature b. eruption c. viscosity d. basalticVolcanic Material
3. Is the following sentence true or false? One thing all volcanic eruptions have in common is that they emit large amounts of gas.

false

4.

During a volcanic eruption,particles called lapilli , ranging from very fine dust to pieces weighing several tons, are ejected.
Earth Science Guided Reading and Study Workbook 74

I

Name ___________________________Chapter 10

Class ___________________

Date _____________

Volcanoes and Other Igneous Activity

Types of Volcanoes
5. Select the appropriate letter in the figure that identifies each of the...