Download Document

Document related concepts

Outer space wikipedia , lookup

Transcript
Presentation Plus! Glencoe World Geography
Copyright © by The McGraw-Hill Companies, Inc.
Developed by FSCreations, Inc., Cincinnati, Ohio 45202
Send all inquiries to:
GLENCOE DIVISION
Glencoe/McGraw-Hill
8787 Orion Place
Columbus, Ohio 43240
Chapter Introduction
Section 1 The Land
Section 2 Climate and Vegetation
Chapter Summary & Study Guide
Chapter Assessment
Click on a hyperlink to view the corresponding slides.
Chapter Objectives
• Describe the dominant landforms and
natural resources of the United States
and Canada. 
• Discuss climate and vegetation in the
United States and Canada.
Click the mouse button or press the
Space Bar to display the information.
As you read this chapter, note in your
journal unusual facts about the physical
geography of the United States and
Canada–facts that make you ask how or
why. Consider using these facts as the
main ideas for essays or reports.
The Land
Objectives
• Identify some key similarities and
differences in the physical geography
of the United States and Canada. 
• Explain why rivers have played such
an important role in this region’s
development. 
• Examine geographic factors that
have made the United States and
Canada so rich in natural resources.
Click the mouse button or press the
Space Bar to display the information.
The Land
Terms to Know
• divide 
• headwaters 
• tributary 
• fall line 
• fishery
Click the mouse button or press the
Space Bar to display the information.
The Land
Places to Locate
• Mount McKinley 
• Rio Grande 
• Rocky Mountains 
• Mackenzie River 
• Canadian Shield 
• Mississippi River 
• Appalachian
Mountains 
• St. Lawrence River 
• Colorado River 
Click the mouse button or press the
Space Bar to display the information.
• Great Lakes
Click the Speaker button
to listen to the audio again.
The lower 48 states of the United States
contain a number of active volcanoes. Two of
the best known are in Washington, on the
Pacific coast: Mount Rainier and Mount Saint
Helens. At 14,410 feet (4,392 m), Mount
Rainier is the third-tallest volcano in North
America. It has been dormant for over a
century. Mount Saint Helens, at a height of
8,365 feet (2,550 m), violently erupted in
1980, killing 57 people and damaging an area
of about 70 sq. mi. (180 sq km).
Landforms
• The Western Mountains and Plateaus
The western mountains of North America
are called the Pacific Ranges. 
• They include Alaska’s Mount McKinley,
the highest point on the continent. 
• The Rocky Mountains link the United
States and Canada and stretch
northwest from New Mexico to Alaska.
(pages 115–116)
Click the mouse button or press the
Space Bar to display the information.
Landforms (cont.)
• Dry basins and plateaus, featuring
Death Valley and the Grand Canyon,
fill the area between the mountain
ranges. 
• Interior Landforms East of the
Rockies, the land falls and flattens into
the Great Plains, which extend across
the center of North America.
(pages 115–116)
Click the mouse button or press the
Space Bar to display the information.
Landforms (cont.)
• Eastern Mountains and Lowlands
North America’s oldest mountain chain,
the Appalachians, extends from
Quebec in Canada to Alabama in the
United States. 
• The Canadian Shield, a giant core of
rock, makes up the eastern half of
Canada and the northeastern United
States.
(pages 115–116)
Click the mouse button or press the
Space Bar to display the information.
Landforms (cont.)
• Islands North American islands
include Manhattan, home to a major
world cultural and financial center, in
the northeast. 
• The Hawaiian Islands in the Pacific are
volcanic mountaintops. 
• Greenland, the world’s largest island,
is just off the coast of Canada’s
Ellesmere Island.
(pages 115–116)
Click the mouse button or press the
Space Bar to display the information.
Landforms (cont.)
Which areas of the region would you predict are
the most densely populated? Why do you think
so?
People tend to settle near sources of freshwater
and in mild climates. Mountaintops are too cold
and the deserts are too dry for many people to
live there. People would settle in the Great
Plains because the farmland is rich and
abundant. Some of the islands are probably
crowded, as are most coastal areas where large
cities are located. Other populated areas border
lakes and rivers that serve as transportation
arteries.
(pages 115–116)
Click the mouse button or press the
Space Bar to display the answer.
A Fortune in Water
• Rivers from the Rockies The high
ridge of the Rockies is called the
Continental Divide. 
• Water flows west of the Divide toward
the Pacific Ocean and east of the
Divide into the Mississippi River and
the Gulf of Mexico.
(pages 116–119)
Click the mouse button or press the
Space Bar to display the information.
A Fortune in Water (cont.)
• The Mighty Mississippi One of North
America’s longest rivers, the Mississippi
flows 2,350 miles (3,782 km) from its
source. 
• It begins in Minnesota as a stream and
ends as a broad river that empties into
the Gulf of Mexico. 
• The Mississippi drains all or part of 31
U.S. states and 2 Canadian provinces. It
is one of the world’s busiest commercial
waterways.
(pages 116–119)
Click the mouse button or press the
Space Bar to display the information.
A Fortune in Water (cont.)
• Eastern Rivers The St. Lawrence,
one of Canada’s most important rivers,
forms part of the United States-Canada
border. 
• The Canadian cities of Quebec,
Montreal, and Ottawa developed
along the St. Lawrence River and
its tributaries.
(pages 116–119)
Click the mouse button or press the
Space Bar to display the information.
A Fortune in Water (cont.)
• Niagara Falls, located on a river
connecting Lake Ontario and Lake
Erie, is a major source of
hydroelectric power for Canada
and the United States.
(pages 116–119)
A Fortune in Water (cont.)
(pages 116–119)
Click the Speaker button
to listen to the audio again.
A Fortune in Water (cont.)
• From Glaciers to Lakes Glacial dams
created Canada’s Great Bear Lake and
Great Slave Lake. 
• The Great Lakes–Lakes Superior, Erie,
Michigan, Ontario, and Huron–are
basins created by glacial activity. 
• The Great Lakes-St. Lawrence Seaway
is a network of canals, rivers, and
waterways linking the Great Lakes with
the Atlantic Ocean.
(pages 116–119)
Click the mouse button or press the
Space Bar to display the information.
A Fortune in Water (cont.)
What is the importance of the Mississippi
River in U.S. history and economics?
Explain.
The river stretches almost the full length
of the country’s interior, so it provides a
means for transporting people and goods.
European explorers used the Mississippi
to venture into new territories.
(pages 116–119)
Click the mouse button or press the
Space Bar to display the answer.
Natural Resources
• Fuels An abundance of resources,
such as fossil fuels and minerals, has
contributed to the prosperity of the
United States and Canada.
(pages 119–120)
Click the mouse button or press the
Space Bar to display the information.
Natural Resources (cont.)
• Minerals Gold, silver, and copper are
found in the Rocky Mountains. Nickel
and iron are mined in parts of the
Canadian Shield. 
• Deposits of low-grade iron ore exist
in northern Minnesota and Michigan. 
• Canada supplies much of the world’s
potash, copper, and silver.
(pages 119–120)
Click the mouse button or press the
Space Bar to display the information.
Natural Resources (cont.)
(pages 119–120)
Click the Speaker button
to listen to the audio again.
Natural Resources (cont.)
• Timber Today forests cover less than
50 percent of Canada and just 30
percent of the United States. 
• Commercial loggers face the challenge
of harvesting trees while preserving the
remaining forests.
(pages 119–120)
Click the mouse button or press the
Space Bar to display the information.
Natural Resources (cont.)
• Fishing The coastal waters of the
Atlantic and Pacific Oceans and the
Gulf of Mexico are important sources
of fish and other sea animals. 
• Because of overfishing, however, the
Grand Banks, off Canada’s southeast
coast, are now off limits to cod fishers.
(pages 119–120)
Click the mouse button or press the
Space Bar to display the information.
Natural Resources (cont.)
(pages 119–120)
Click the Speaker button
to listen to the audio again.
Natural Resources (cont.)
If you were a commercial fisher, how would
you resolve the dilemma between earning a
living from the sea and conserving the fish
population?
Possible answers: A commercial fisher might
identify new species for harvest, work to
establish protected hatching areas, or find
alternative uses for equipment and fishing
boats, such as tourism. The fisher might also
observe limits and seasons for catching fish,
and seek other, part-time employment in off
seasons.
(pages 119–120)
Click the mouse button or press the
Space Bar to display the answer.
Checking for Understanding
Define Match each definition in the left column with the
appropriate term in the right column.
__
D 1. a boundary in the eastern
United States where the higher
land of the Piedmont drops to
the lower Atlantic Coastal Plain
A. divide
__
B 2. the sources of river waters
D. fall line
__
A 3. a high point or ridge that
determines the direction rivers
flow
E. fishery
__
C 4. smaller river or stream that
feeds into a larger river
__
E 5. areas (freshwater or saltwater)
in which fish or sea animals are
caught
Click the mouse button or press the
Space Bar to display the answers.
B. headwaters
C. tributary
Critical Thinking
Drawing Conclusions Why might fishing
disputes arise in the region?
Possible answer: More intense competition
for decreasing numbers of fish might cause
disputes.
Click the mouse button or press the
Space Bar to display the answer.
Critical Thinking
Identifying Cause and Effect How did the
Great Lakes-St. Lawrence Seaway influence
the development of cities in the region?
Early cities depended on the lakes and
waterways for transportation.
Click the mouse button or press the
Space Bar to display the answer.
Critical Thinking
Drawing Conclusions In what ways did
the actions of glaciers alter the physical
geography of this region and what effects
did those alterations have on the region’s
development?
Possible answer: Settlers could search
for helpful geographic features, such as
gaps or low-lying areas, through which
they could pass.
Click the mouse button or press the
Space Bar to display the answer.
Analyzing Maps
Location Study the
physical-political
map on the right.
Describe the
landscapes found in
the following places:
Montana, Texas, and
Ontario.
Plains and mountains
are found in Montana.
Plains, coastlines,
hills, and mountains are found in Texas.
Lowlands lakes and plateaus are found
in Ontario.
Click the mouse button or press the
Space Bar to display the answer.
Applying Geography
Effects of Location Write a paragraph
describing the effects of a physical process,
such as weather or gravity, on the flow of
rivers in the United States and Canada.
Close
Look through travel magazines for photos
of a region of the United States or Canada.
Then reread “A Geographic View” on page
115 of your textbook. Write a description
about the photo you chose.
Climate and Vegetation
Objectives
• List the climate zones found in the United
States and Canada. 
• Describe how winds, ocean currents, latitude,
and landforms affect the region’s climates. 
• Identify the kinds of weather hazards that affect
the United States and Canada. 
• Discuss how human settlement has affected
the natural vegetation of the United States and
Canada.
Click the mouse button or press the
Space Bar to display the information.
Climate and Vegetation
Terms to Know
• timberline 
• chinook 
• prairie 
• supercell 
• hurricane 
• blizzard
Click the mouse button or press the
Space Bar to display the information.
Climate and Vegetation
Places to Locate
• Death Valley 
• Great Plains 
• Everglades 
• Newfoundland 
• Yukon Territory
Click the mouse button or press the
Space Bar to display the information.
Click the Speaker button
to listen to the audio again.
Tornadoes are a common phenomenon in
the Great Plains region. “Tornado” comes
from the Spanish word for thunderstorm.
Tornadoes are usually brief, but they are
very destructive. During the 1990s alone,
378 people lost their lives in tornadoes in
the United States.
A Varied Region
• Two-thirds of Canada and the U.S. state
of Alaska experience long, cold winters
and brief, mild summers. 
• Most of the continental United States
and the southern one-third of Canada
enjoy temperate climates, depending
on elevation. 
• Hawaii, in the South Pacific, has a
tropical climate.
(page 121)
Click the mouse button or press the
Space Bar to display the information.
A Varied Region (cont.)
Which climate regions in the United
States and Canada do you think attract
the greatest number of people?
Explain.
Possible answer: Many people prefer
living in mid-latitude and tropical
climates because of relatively mild or
warm temperatures and the variety of
ways of earning a living.
(page 121)
Click the mouse button or press the
Space Bar to display the answer.
Northern Climates
• Large parts of Canada and Alaska lie in
a subarctic climate zone with very cold
winters and extensive coniferous
forests. 
• Winter temperatures can fall as low as
-70ºF (–57ºC).
(page 122)
Click the mouse button or press the
Space Bar to display the information.
Northern Climates (cont.)
• Bitter winters and cool summers in the
tundra along the Arctic coastline make
the area unsuitable for most plants or
people. 
• Greenland boasts only a few ice-free
areas with some extremely hardy trees.
(page 122)
Click the mouse button or press the
Space Bar to display the information.
Northern Climates (cont.)
What everyday effects does climate have on
people who live in subarctic and tundra climate
zones?
They probably spend a lot of their time indoors.
They must wear layers of warm clothing and
heavy socks and boots. For travel, they need
vehicles that function in icy conditions. They
must take precautions against frostbite. They
need to keep their kitchens stocked with
supplies for the times when they are snowed in.
Many fresh fruits and vegetables are expensive
or unavailable. Occupational opportunities are
limited.
(page 122)
Click the mouse button or press the
Space Bar to display the answer.
Western Climates
• Marine West Coast A marine west coast
climate brings nearly 100 inches (254
cm) of rainfall every year to the Pacific
coast from California to southern Alaska.

• This amount of precipitation, combined
with cool temperatures, is ideal for
coniferous forests, ferns, and mosses.
(pages 122–124)
Click the mouse button or press the
Space Bar to display the information.
Western Climates (cont.)
• Plateaus, Basins, and Deserts 
- The region between the Pacific Ranges and
the Rocky Mountains includes deserts and
steppes. 
- The weather is hot and dry. Cacti and
wildflowers bloom during the brief spring
rains. 
- Elevation gives the higher reaches of
the Rocky Mountains and Pacific
Ranges a highlands climate.
(pages 122–124)
Click the mouse button or press the
Space Bar to display the information.
Western Climates (cont.)
- Beyond the timberline, coniferous forests
give way to only lichens and mosses. 
- In the spring, the warm, dry chinook wind
thaws the snows at the base of
the eastern slopes of the Rockies.
(pages 122–124)
Click the mouse button or press the
Space Bar to display the information.
Western Climates (cont.)
Why are trees unable to grow on high
mountaintops?
At high altitudes, the temperatures are
too cold for trees to grow. Soils are
generally shallow, rocky, and frozen,
so seeds do not germinate.
(pages 122–124)
Click the mouse button or press the
Space Bar to display the answer.
Interior Climates
• Prairies Prairies, or naturally treeless
expanses of grasses, spread across
North America’s midsection. 
• Some prairie grasses grow up to 12
feet high (3.7 m) as a result of rainfall
ranging from 10 to 30 inches (26 to 76
cm) every year.
(pages 124–125)
Click the mouse button or press the
Space Bar to display the information.
Interior Climates (cont.)
• The Dust Bowl When farmers settled
the Great Plains, they plowed up the sod
formed by prairie grasses, leaving the
soil without protection. 
• During the 1930s, several seasons of
drought and dry winds blew the soil
away, and the area was nicknamed the
Dust Bowl.
(pages 124–125)
Click the mouse button or press the
Space Bar to display the information.
Interior Climates (cont.)
(pages 122–124)
Click the Speaker button
to listen to the audio again.
Interior Climates (cont.)
What steps have farmers today taken to
prevent future dust-bowl disasters?
Farmers have planted shelter belts of
trees to moderate wind damage, rotated
crops, allowed some areas to remain in
grass, adopted no-till farming practices,
contour plowed to conserve moisture,
and planted cover crops. Many
participate in government-sponsored
conservation programs.
(pages 124–125)
Click the mouse button or press the
Space Bar to display the answer.
Eastern Climates
• The southeastern United States, with
a humid subtropical climate, has mild
winters and long, muggy summers. 
• Much of the original deciduous forest
has been cleared for agriculture. 
• Wetlands and swamps shelter a great
variety of plants and animals. 
• Every summer, the region prepares for
hurricanes.
(page 125)
Click the mouse button or press the
Space Bar to display the information.
Eastern Climates (cont.)
• The northeastern United States and
southeastern Canada have a humid
continental climate with bands of
deciduous and mixed forestland. 
• Much of this area is prone to winter
blizzards–snowstorms with high winds,
heavy or blowing snow, and little
visibility.
(page 125)
Click the mouse button or press the
Space Bar to display the information.
Eastern Climates (cont.)
(page 125)
Click the Speaker button
to listen to the audio again.
Eastern Climates (cont.)
In which region would you prefer to
live? Why?
Possible answers: The Northeast,
because the climate changes during
each of the four seasons, or the South,
because the winters are mild.
(page 125)
Click the mouse button or press the
Space Bar to display the answer.
Tropical Climates
• Hawaii, Puerto Rico, and the southern
tip of Florida have tropical climates. 
• Southern Florida has a tropical savanna
area, and both Hawaii and Puerto Rico
have tropical rain forests.
(page 125)
Click the mouse button or press the
Space Bar to display the information.
Tropical Climates (cont.)
Why is southern Florida the only place in
the continental United States to have a
tropical climate, and what kind of tropical
climate exists there?
Florida’s southern tip lies in the low
latitudes. The rest of the continental
United States is too far north to have
tropical climates. Florida’s tropical
savanna climate zone has seasonal rains,
vast grasslands, and high temperatures
year-round.
(page 125)
Click the mouse button or press the
Space Bar to display the answer.
Checking for Understanding
Define Match each definition in the left column with the
appropriate term in the right column.
__
B 1. seasonal warm wind that blows
down the Rockies in late winter
and early spring
__
E 2. a large, powerful windstorm that
forms over warm ocean waters
__
F 3. a snowstorm with winds of more
than 35 miles per hour,
temperatures below freezing,
and visibility of less than 500
feet for 3 hours or more
__
C 4. an inland grassland area
Click the mouse button or press the
Space Bar to display the answers.
A. timberline
B. chinook
C. prairie
D. supercell
E. hurricane
F.
blizzard
Checking for Understanding
Define Match each definition in the left column with the
appropriate term in the right column.
__
D 6. violent thunderstorms that can
spawn tornadoes
A. timberline
__
A 7. elevation above which it is too
cold for trees to grow
C. prairie
B. chinook
D. supercell
E. hurricane
F.
Click the mouse button or press the
Space Bar to display the answers.
blizzard
Critical Thinking
Making Comparisons How do the Pacific
winds and the Arctic winds differ in their
impact on climate?
Pacific winds that warm the west coast of
the region account for the mild winters
there. Arctic winds chill the region’s midsection and east coast, bringing severe
winter weather.
Click the mouse button or press the
Space Bar to display the answer.
Critical Thinking
Problem Solving How might the conditions
that caused the 1930s Dust Bowl disaster
have been avoided?
Conditions could have been avoided by
using different farming and conservation
methods.
Click the mouse button or press the
Space Bar to display the answer.
Critical Thinking
Comparing and Contrasting How do
hurricanes and tornadoes differ?
Hurricanes are ocean storms hundreds of
miles wide with winds of 74 mph (119 k/h)
or more that occur in late summer and
early autumn. Tornadoes–twisting funnels
of air with winds of up to 300 mph (483
k/h)–result from violent spring and
summer thunderstorms called supercells.
Click the mouse button or press the
Space Bar to display the answer.
Analyzing Maps
Region Study the maps below. Identify
the three largest climate regions and the
vegetation common in each.
Click the mouse button or press the
Space Bar to display the answer.
Analyzing Maps
The subarctic, humid continental, and humid
subtropical regions all have some mixed
forests. Coniferous trees are common in the
subarctic areas of Canada. Temperate
grasslands are common in the region’s midsection.
Applying Geography
Effects of Climate Describe and explain the
environmental factors that have affected
human migration in the region.
Possible answers: Harbors, waterways,
climate and soil differences, and rugged, but
passable mountains are all environmental
factors that have affected human migration.
Click the mouse button or press the
Space Bar to display the answer.
Close
Compare and contrast the environments of
the United States and Canada.
Section 1: The Land (pages 115–120)
Key Points
• Canada and the continental United States
have similar landforms, shaped by similar
geologic processes. 
• Both have high, sharp mountains and dry
plateaus in the west; rolling, grassy plains in
the center; and lower, older mountains and
coastal lowlands in the east. 
• The region’s waterways, including rivers, lakes,
coastal waters, and intracoastal channels,
played a vital role in settling the land and
continue to serve as commercial highways.
Click the mouse button or press the
Space Bar to display the information.
Section 1: The Land (pages 115–120)
Key Points
• The Continental Divide divides the region into
two large drainage areas. 
• To the east of the Divide, waters flow to the
Arctic Ocean, to Hudson Bay, to the Atlantic
Ocean, or to the Gulf of Mexico. To the west,
they flow into the Pacific Ocean. 
• Glacial movement shaped much of the North
American landscape. 
• The geologic factors that shaped the United
States and Canada also provided the region
with a wealth of natural resources.
Click the mouse button or press the
Space Bar to display the information.
Section 2: Climate and Vegetation
Key Points
(pages 121–125)
• The region encompassing the United States
and Canada experiences a great variety of
climates. 
• Some climate regions of the United States and
Canada are influenced primarily by latitude. 
• Wind, ocean currents, rainfall patterns, and
elevation moderate the effects of latitude in
other climate zones of the United States and
Canada.
Click the mouse button or press the
Space Bar to display the information.
Section 2: Climate and Vegetation
Key Points
(pages 121–125)
• Climatic factors cause hazardous seasonal
weather patterns in the United States and
Canada, including spring and summer
tornadoes, and summer and fall hurricanes,
and winter blizzards. 
• The region’s natural vegetation reflects its
climatic variety, but human interaction with the
environment has greatly altered natural
vegetation.
Click the mouse button or press the
Space Bar to display the information.
Reviewing Key Terms
Insert the key term that best completes each of the
following sentences.
chinook
fall line
fisheries
prairies
supercell
timberline
tributary
headwaters
divide
1. ___________________
supply great quantities of
Fisheries
fish and other sea animals to North America.
2. The warm, dry wind, or ___________________
chinook
melts snow at the base of the Rockies.
3. Lichens and mosses grow above the
___________________.
timberline
4. Spring and summer tornadoes are spawned by a
violent thunderstorm called a(n)
supercell
___________________.
Click the mouse button or press the
Space Bar to display the answers.
Reviewing Key Terms
Insert the key term that best completes each of the
following sentences.
chinook
fall line
fisheries
prairies
supercell
timberline
tributary
headwaters
divide
5. Farmers on the wide grasslands, or
___________________
of the Great Plains broke
prairies
up sod to grow crops.
6. Many North American rivers have their
___________________,
or source, in the Rocky
headwaters
Mountains, where a(n) ___________________
divide
determines the direction of the rivers’ flow.
Click the mouse button or press the
Space Bar to display the answers.
Reviewing Key Terms
Insert the key term that best completes each of the
following sentences.
chinook
fall line
fisheries
prairies
supercell
timberline
tributary
headwaters
divide
7. Important cities grew up along the
fall line
___________________,
where the Piedmont
drops to the Atlantic Coastal Plain.
8. A(n) ___________________
of the Mississippi
tributary
River may be a stream or small river.
Click the mouse button or press the
Space Bar to display the answers.
Reviewing Facts
Section 1: The Land
How were the Pacific Ranges formed?
The Pacific Ranges were formed by
collisions between the Pacific and the
North American tectonic plates millions
of years ago.
Click the mouse button or press the
Space Bar to display the answer.
Reviewing Facts
Section 1: The Land
What effect does the Continental Divide
have on the direction rivers flow?
Waters west of the Continental Divide flow
into the Pacific Ocean. Waters east of the
divide flow into the Mississippi River
system and then into the Gulf of Mexico.
Click the mouse button or press the
Space Bar to display the answer.
Reviewing Facts
Section 2: Climate and Vegetation
What kind of climate is common in most of
the United States and southern Canada?
Climates typical of mid-latitudes that vary
with elevation are common in most of the
United States and southern Canada.
Click the mouse button or press the
Space Bar to display the answer.
Reviewing Facts
Section 2: Climate and Vegetation
Name two types of vegetation in this region.
Mixed deciduous-coniferous forest and
grasslands are found in the United States
and southern Canada.
Click the mouse button or press the
Space Bar to display the answer.
Critical Thinking
Analyzing Information What geologic
processes shaped much of this region?
Collision of tectonic plates and the
movement of glaciers shaped much of
this region.
Click the mouse button or press the
Space Bar to display the answer.
Critical Thinking
Drawing Conclusions Why should the
United States and Canada protect their
natural vegetation?
Possible answer: The United States and
Canada should protect their natural
vegetation to prevent massive erosion and
loss of topsoil such as that which occurred
during the Dust Bowl era.
Click the mouse button or press the
Space Bar to display the answer.
Locating Places
Match the letters on the map with the physical features of
the United States and Canada. Write your answers on a
sheet of paper.
__1.
Rocky Mountains
J
__2.
Great Plains
F
__3.
Appalachian
K
Mountains
__4.
Canadian Shield
L
__5.
Great Lakes
A
__6.
Mississippi River
C
Click the mouse button or press the
Space Bar to display the answers.
Locating Places
Match the letters on the map with the physical features of
the United States and Canada. Write your answers on a
sheet of paper.
__7.
Hudson Bay
G
__8.
Great Bear Lake
D
__9.
Pacific Ranges
B
__10.
Mackenzie River
I
__11.
Rio Grande
H
__12.
Great Slave Lake
E
Click the mouse button or press the
Space Bar to display the answers.
Why is vegetation in the United States
more varied than that in Canada?
The United States has more climate
zones, from subarctic to tropical. These
zones help determine what types of
vegetation will grow in a certain area.
Click the mouse button or press the
Space Bar to display the answer.
Explore online information about the topics
introduced in this chapter.
Click on the Connect button to launch your browser and go to the
Glencoe World Geography Web site. At this site, you will find
interactive activities, current events information, and Web sites
correlated with the chapters and units in the textbook. When you
finish exploring, exit the browser program to return to this
presentation. If you experience difficulty connecting to the Web
site, manually launch your Web browser and go to
http://geography.glencoe.com
Choose the best answer for the following multiplechoice question. If you have trouble answering the
question, use the process of elimination to narrow
your choices.
1. Given the information shown in the bar graph on page 129 of your
textbook, which city is most likely located east of the fall line in the
eastern United States?
A
City 1
B
City 2
C
City 3
D
City 4
Test-Taking Tip To determine which city is east of the fall line,
remember that the fall line is where the higher land of the Piedmont
drops to the lower Atlantic Coastal Plain to the east. Eliminate those
choices that do not indicate a city on the coast, near sea level.
Click the mouse button or press the
Space Bar to display the answer.
The Appalachian Trail
The National Geographic Society Tree
Click on a hyperlink to view the corresponding slide.
The Appalachian Trail is a 2,000 mile (3,200 km)
hiking path through some of the most beautiful
scenery in the eastern United States. Earl V. Shaffer
distinguished himself by being the first person to hike
the entire trail in 1949, the first to hike the trail in both
directions, and, in 1999 at the age of 80, the oldest
person to complete the trek from Mount Katahdin in
Maine to Springer Mountain in Georgia.
The National Geographic Society Tree, a coast
redwood growing in California’s Redwood National
Park, is a leading contender for the world’s tallest
living tree. Measured in 1995 at 365.5 feet (111 m),
the tree has branches that sweep in 50-foot (15-m)
arcs.
Geology The Canadian Shield is a horseshoeshaped expanse of rock that covers half of Canada.
Some of the rock formations in the Canadian Shield
are 2 billion to 4 billion years old, making them some
of the oldest formations in the world.
The Dust Bowl Writer John Steinbeck chronicled
the plight of those who lost their farms in the
Dust Bowl in his Pulitzer Prize-winning novel,
The Grapes of Wrath, written in 1939.
Reading a Relief Map
When you plan a walk, do you prefer an easy stroll along flat
ground, or do you look for a challenging hike up and down
steep hills? By using a relief map, you can determine the
elevation of the terrain you are going to cover.
Reading a Relief Map
Learning the Skill
A relief map is a special purpose map that shows variation in
height, or elevation, of land areas. All elevation is measured
from sea level, the average level of water in the world’s
oceans. Mapmakers label this elevation level zero feet (0 m).
The actual elevation of some places is shown as a negative
number because they lie below sea level. 
It is not possible for a relief map to show the elevation of
every single inch of land. As a result, areas are grouped
together. A map may show all areas with an elevation
between sea level and 1,000 feet (305 m) colored green.
Within that area no hill will be higher than 1,000 feet (305 m)
and no valley lower than sea level.
Click the mouse button or press the
Space Bar to display the information.
Reading a Relief Map
Learning the Skill
Follow these steps to read a relief map: 
• Note the title of the map. 
• Study the map key. Relief maps generally use colors or
shaded areas to identify elevation. 
• Compare the relief map with other maps. Observe how
elevation affects climate, population distribution, and
economic activity in an area.
Click the mouse button or press the
Space Bar to display the information.
Reading a Relief Map
Practicing the Skill
Refer to the relief map on page 126 of your textbook to
answer the following questions.
1. What is the color of the map’s highest elevation?
The color of the highest elevation is orange.
2. What elevation range does the color green indicate in
feet? In meters?
The color green indicates 0 to 1,000 feet, or 0 to 300
meters.
Click the mouse button or press the
Space Bar to display possible answers.
Reading a Relief Map
Practicing the Skill
Refer to the relief map on page 126 of your textbook to
answer the following questions.
3. What color is the elevation range of 2,000 to 5,000 feet
(600 m to 1,500 m)?
The color of the elevation range is light orange.
4. At what elevation is the state of Mississippi?
The elevation of Mississippi is 0 to 1,000 feet.
Click the mouse button or press the
Space Bar to display possible answers.
Reading a Relief Map
Practicing the Skill
Refer to the relief map on page 126 of your textbook to
answer the following questions.
5. What are the elevation levels as you travel west from New
Jersey to Ohio?
The elevation levels are from 0 to 5,000 feet.
Click the mouse button or press the
Space Bar to display possible answer.
Maps
The United States and Canada: Physical-Political
The United States and Canada: Climate Regions
The United States and Canada: Natural Vegetation
Click on a hyperlink to view the corresponding slide.
Click the mouse button or press the
Space Bar to display the answer.
Latitude; the average
temperature
decreases as
latitude increases.
Click the mouse button or press the
Space Bar to display the answer.
End of Custom Shows
WARNING! Do Not Remove
This slide is intentionally blank and is set to auto-advance to end custom
shows and return to the main presentation.