Download Reading Study Guide A - Middletown Public Schools

SECTION
EARTH HAS SEVERAL LAYERS.
BIG IDEA The
CHAPTER 1
Plate Tectonics
1.1 Reading Study Guide A
movement of tectonic plates causes geologic changes on Earth.
KEY CONCEPT
Earth has several main layers.
Vocabulary
inner core a ball of hot, solid metals at the center of Earth
outer core a layer of hot liquid metals surrounding the inner core
mantle Earth’s thickest layer, it has a more rigid upper portion and a softer,
lower portion.
crust thin layer of rock that surrounds Earth
lithosphere the crust and the very top of the mantle together
asthenosphere a layer of hot, soft rock in the upper mantle
tectonic plate large and small rock slabs that make up the lithosphere
Review
1.
The building blocks of Earth are
.
Take Notes
Copyright © by McDougal Littell, a division of Houghton Mifflin Company
I.
Earth is made up materials with different densities. (p. 9)
2.
Fill in the main-idea web for the main idea shown.
Earth is made up of materials with different densities.
Denser materials
.
Less dense materials
.
Other materials
.
II. Earth’s layers have different properties. (p. 10)
3.
Why would scientists set off an underground explosion?
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A–B. Core, Mantle, Crust (p. 10)
On the diagram of Earth below, label each layer and write whether the layer
is liquid, solid, or partly solid.
5.
For each row in the table, write the correct layer of Earth that corresponds to
the description.
CHAPTER 1
Plate Tectonics
4.
Thickest layer
Home to all life on Earth
Earth’s thinnest layer
Copyright © by McDougal Littell, a division of Houghton Mifflin Company
Hot, solid metals
Liquid metals
Hot, soft rock at top of mantle
6.
Which layer is under the most pressure? Where does the pressure come from?
III. The lithosphere is made up of many plates. (p. 12)
7.
Fill in the main-idea web for the main idea shown.
The lithosphere is made up of many plates.
The size of tectonic plates may be
.
Most large tectonic plates include
.
Tectonic plates fit together on Earth's surface like
.
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