Download Mountains and Volcanoes

Mountains and
Volcanoes
Mountains and
volcanoes form as
tectonic plates move.
Key Concepts
SECTION
1
Movement of rock
builds mountains.
Learn how different types
of mountains form.
SECTION
2
Volcanoes form as
molten rock erupts.
Learn why there are
different types of volcanoes
and volcanic eruptions.
SECTION
3
Volcanoes affect
Earth’s land, air,
and water.
Learn how volcanic eruptions
affect land, air, and water.
Prepare and practice for
the FCAT
• Section Reviews, pp. 792,
801, 810
• Chapter Review, pp. 812–814
• FCAT Practice, p. 815
CLASSZONE.COM
• Florida Review: Content
Review and FCAT Practice
782 Unit 5: The Changing Earth
How does new
land form from
molten rock?
Making Mountains
Line up and hold a row of about
ten checkers or coins on a table.
Tilt the row, then let it go.
Observe and Think What
happened to the height,
length, and shape of the
row? How do you think
these changes might be
similar to the processes by
which some mountains
and valleys form?
Under Pressure
Half fill two empty plastic bottles with a fresh
carbonated beverage. Screw the caps on the
bottles tightly. Put one bottle in hot tap water
and one in ice water.
Wait three minutes.
Observe and Think
Slowly unscrew the caps
from the bottles and
observe how quickly
gas bubbles form
and escape. What is
the role of pressure? How might
gas bubbles cause pressure to build up
in magma as they form?
Internet Activity: Volcanoes
Go to ClassZone.com to
make a volcano erupt.
ClassZone.com
Back
Location:
Forward
Reload
Home
Images
Print
Security
Stop
http://www.classzone.com
Observe and Think
Why are some volcanic
eruptions much more
violent than others?
NSTA
scilinks.org
Explore Volcanoes Code: MDL054
Chapter 23: Mountains and Volcanoes 783
CHAPTER 23
CONCEPT REVIEW
VOCABULARY REVIEW
• Earthquakes occur as blocks
of rock move along faults.
convergent boundary p. 730
• Tectonic plates pull apart,
push together, or scrape
past one another along
their boundaries.
fault p. 753
subduction p. 738
earthquake p. 753
magma See Glossary.
FLORIDA REVIEW
CLASSZONE.COM
Content Review and FCAT Practice
TAKING NOTES
CONTENT FRAME
Organize your notes into
a content frame for mountains. Make categories at
the top that describe their
types, features, and how
they form. Then fill in
the boxes for each type
of mountain. Later in the
chapter you will make
content frames for
other topics.
TYPE OF
WHERE THEY
MOUNTAINS CHARACTERISTIC FORM
EXAMPLES
at convergent
Appalachians
rocks bent and
folded
plate boundaries Himalayas
folded
fault-block
VOCABULARY
STRATEGY
Draw a word triangle
diagram for each new
vocabulary term. On the
bottom line, write and
define the term. Above
that, write a sentence that
uses the term correctly.
At the top, draw a small
picture to show what the
term looks like.
784 Unit 5: The Changing Earth
Fault-block
mountains form as
continental crust is
pulled apart.
fault-block mountain:
a mountain pushed up or
tilted along a fault