LESSON VOCABULARY armor encases eruption extinct hideous plunged serpent INTRODUCE THE BOOK INTRODUCE THE TITLE AND AUTHOR Discuss with students the title and the author of Earth: Th
Trang 1Earth:
The Inside Story
SUMMARY For centuries, scientists have been
puzzling over the composition of our planet
From Aristotle—who thought the Earth was
solid—to the recent findings of scientists
today, this book tells the story of the
discovery of the Earth’s layers
LESSON VOCABULARY
armor encases
eruption extinct
hideous plunged
serpent
INTRODUCE THE BOOK
INTRODUCE THE TITLE AND AUTHOR Discuss with
students the title and the author of Earth: The
Inside Story Based on the title, ask students
to say what they think the book will be about
Point out the Science triangle Ask students
why they think the book is labeled “Science.”
BUILD BACKGROUND Discuss what students
know about the inside of the Earth Ask them
if people at different times have believed
different things about the inside of the Earth
Ask them if they know what some of these
different beliefs were Ask them to say why
they think beliefs about the Earth may change
over time
PREVIEW/USE TEXT FEATURES As students
preview the book, the photos will probably
attract their attention Have students also
preview the diagrams and captions Point
out the illustrations on page 9 and page 14
and explain that they can be compared and
contrasted Encourage students to carefully
preview the section heads
READ THE BOOK
SET PURPOSE Have students set a purpose
for reading Earth: The Inside Story Students’
interest in the makeup of the Earth and in the history of scientific ideas should guide this purpose Suggest that students think about how scientific ideas about the Earth have changed over time
STRATEGY SUPPORT: SUMMARIZE As students
read, suggest they write a sentence or two to summarize each section Remind them that when you summarize, you write only about the most important ideas You leave out less important details or ideas Students may later want to put together their section summaries
to create a summary of the selection
COMPREHENSION QUESTIONS
PAGE 4 What did Aristotle, the Greek
philosopher, believe about the Earth?
(He thought it was round and solid.)
PAGE 5 What did maps from the mid-16th century reveal? (Africa and South America
look as if they could fit together like jigsaw puzzle pieces.)
PAGE 8 What did Neptunists believe?
(The continents floated on water.)
PAGE 15 Why did German scientist Alfred Wegener believe that Africa and South America were once connected? (Fossils of extinct
plants were discovered on both continents, and other continents also seemed to have coastlines that interlocked.)
PAGE 16 What happened when scientists explored an underwater mountain chain? (They
realized that these mountains had formed along
a deep crack in the Earth’s crust.)
PAGE 21 What happens when two tectonic plates collide? (The plate edges can fold and
produce mountains.)
5.5.4
CAUSE AND EFFECT
SUMMARIZE
104 Earth: The Inside Story
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Trang 2Skill Work
REVISIT THE BOOK
READER RESPONSE
1 Responses will vary.
2 Students should choose a scientist or
scholar from the book and explain why they
think that person is the most interesting
3 Continental drift is the movement of
continents Responses will vary
4 Responses will vary.
EXTEND UNDERSTANDING As students look at
the illustrations on page 9 and page 14, ask
them to compare and contrast the two views
of the Earth Invite them to discuss what
happened that made people change their
understanding of the Earth
RESPONSE OPTIONS
WRITING Invite students to make a chart
with two columns Label one column “Why
Something Happened,” and the other column
“What Happened.” Encourage them to fill in
the chart as they read the selection
SCIENCE CONNECTION
Students can learn more about
plate tectonics on the Internet
or at the library Suggest they
look for a map of the Earth’s
plate or make a map of their own
based on their research
Earth: The Inside Story 105
TEACH/REVIEW VOCABULARY
To reinforce the meaning of extinct, read the
second paragraph on page 15 Ask students
to say what they think extinct means,
based on the context What other words in the paragraph help them understand the
meaning of extinct? Continue in a similar
fashion with the remaining vocabulary words
Invite students to play a word game Ask yes/no questions using a
vocabulary word, such as: Are all birds extinct? Have children answer with yes or
no, to demonstrate their understanding of
the vocabulary word Continue in a similar fashion until all vocabulary words have been used
TARGET SKILL AND STRATEGY
CAUSE AND EFFECT Remind students
that a cause is “why something happened.”
An effect is “what happened.” Explain that sometimes, clue words such as because,
so, and since indicate a relationship
between why something happened and what happened Have them look for causes and effects as they read
SUMMARIZE Remind students that
summarizing is a strategy that good readers
use to check their understanding of a selection When you summarize, you make
a brief statement that gives the main ideas
of an article As students read, suggest that they summarize causes and effects
ADDITIONAL SKILL INSTRUCTION
FACT AND OPINION Remind students that a
statement of fact is a statement that can be
proved true or false A statement of opinion
is a statement of someone’s judgment, belief, or way of thinking about something
Invite students to look for statements of fact and statements of opinion as they read Suggest they keep a list of facts and a list
of opinions that they find in the selection
16911_LRD_TG_104-105 105 11/17/05 9:00:01 AM
Trang 3Name Earth: The Inside Story
106
Cause and Effect
• A cause is “why something happened.”
• An effect is “what happened.”
Directions Fill in the graphic organizer below.
16th century explorers discovered
new continents
A heavier plate and a lighter plate
collide
An earthquake occurs
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Name
107
Vocabulary
Directions Read each sentence Write the word from the box that correctly fits in the sentence
Some words may be used more than once
inner core
Africa and South America
5 When layers of the planet move into and away from each other, a volcanic
can occur
the mantle of the Earth and the edge melts
solid inner core
beings
10 They have also found an underwater mountain range that snakes along a deep crack in the Earth’s
learn about Earth and its history
Earth: The Inside Story
Check the Words You Know
armor hideous
encases plunged
eruption serpent
extinct
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