espe-0600rs
11/1/01
12:23 PM
Page 80
Name
Date
Section 23.1
Studying the Ocean Floor
KEY IDEA
Recall what you know about ways scientists gather information about
Earth. Then list the key vocabulary terms in your science notebook,
leaving a few lines beneath each.
Scientists have
developed many
different technologies
and methods with
which to study the
ocean floor.
While you read:
KEY VOCABULARY
Summarize the main ideas of this section by naming and describing
three important ways that scientists study the ocean floor.
• echo sounding
• core sampling
Before you read:
Studying the ocean floor
2.
3.
Copyright © McDougal Littell Inc.
Chapter 23
Reading Study Guide
1.
After you read:
In your science notebook, write what you learned about each key
vocabulary term.
80
Section 23.1
Earth Science