Write to It!You have learned about the natural resources in the United States and how these resources differ from region to region.. Vocabulary natural resources region physical environm
Trang 1Scott Foresman Social Studies
Nonfi ction Draw Conclusions • Headings/Subheadings
• Map
• Time Line
• Captions
ISBN 0-328-14830-X
Fascinating Facts
pounds of paper each year
are made of paper and could have been
recycled
years for just one inch of rich soil to form
Scott Foresman Social Studies
Nonfi ction Draw Conclusions • Headings/Subheadings
• Map
• Time Line
• Captions
ISBN 0-328-14830-X
Fascinating Facts
pounds of paper each year
are made of paper and could have been
recycled
years for just one inch of rich soil to form
Trang 2Write to It!
You have learned about the natural resources
in the United States and how these resources differ from region to region Find out which resources are plentiful in your state Write two paragraphs about how people use them
Be sure to include information about jobs connected with your state’s natural resources
Write your paragraphs on a separate sheet of paper.
ISBN: 0-328-14830-X
Copyright © Pearson Education, Inc
All Rights Reserved Printed in the United States of America This publication is protected
by Copyright, and permission should be obtained from the publisher prior to any prohibited
reproduction, storage in a retrieval system, or transmission in any form by any means,
electronic, mechanical, photocopying, recording, or likewise For information regarding
permission(s), write to: Permissions Department, Scott Foresman, 1900 East Lake Avenue,
Glenview, Illinois 60025.
1 2 3 4 5 6 7 8 9 10 V0G1 14 13 12 11 10 09 08 07 06 05
Illustration
3 ©Guy Porfirio
Photographs
Every effort has been made to secure permission and provide appropriate credit for photographic material The publisher deeply regrets any omission and pledges to correct errors called to its attention in subsequent editions.
Unless otherwise acknowledged, all photographs are the property of Scott Foresman, a division of Pearson Education.
Photo locators denoted as follows: Top (T), Center (C), Bottom (B), Left (L), Right (R) Background (Bkgd) Opener: ©Wendell Metzen/Index Stock Imagery
2 ©Royalty-Free/Corbis
4 ©Wendell Metzen/Index Stock Imagery
5 ©Corbis
6 ©David R Frazier Photolibrary, Inc./Alamy Images
7 ©The Granger Collection, NY
8 ©Tom Myers
10 ©Mineral Information Institute
14 ©Peter Skinner/Photo Researchers, Inc.
All people have needs We need food, clothes,
and a safe place to live None of these needs
could be met without natural resources Natural
resources are materials from the earth Read on
and find out about the valuable resources from
our land from sea to shining sea
Vocabulary
natural resources
region physical environment
landform climate communities
fuel mineral lumber
by Barbara Bigelow
Editorial Offices: Glenview, Illinois • Parsippany, New Jersey • New York, New York Sales Offices: Needham, Massachusetts • Duluth, Georgia • Glenview, Illinois Coppell, Texas • Sacramento, California • Mesa, Arizona
Trang 3What is a natural resource?
Natural resources are useful materials that
come from the earth They are changed into things
that we use every single day
The toothpaste you use to brush your teeth contains sand Sand is a natural resource The
paper this book was printed on came from a tree
Our forests are natural resources
The gasoline that powers the car or bus you ride started out as oil Oil is a natural resource formed
underground The steel used to make cars started
out as iron, another natural resource
Even if you walked to school or rode your bike today, you used natural resources Tires and the
soles of your shoes are made of rubber that comes
from tree sap or the ground
Coal is a natural resource.
3
The five regions of the United States are shown on this map Notice how each region’s name matches its placement on the map
“From sea to shining sea!”
The words “from sea to shining sea” are from the song “America the Beautiful.” The United States is the fourth-largest country in the world
To get from one end of the country to the other, you would have to travel about three thousand miles! If you did not make any stops along the way, it would still take at least two whole days and two whole nights to drive that far
These are the regions of the United States.
Northeast region
Southeast region Southwest region
West region
Midwest region
Trang 4The United States is divided into five different
regions A region is a large land area that has
special features
The five regions of the United States have very
different physical environments You can tell
one type of physical environment from another
by observing its landforms and its climate
Landform is a scientific word for different
features or shapes found on Earth’s surface
Deserts and mountains are two examples of
landforms Climate refers to the kind of weather
a place has from year to year
The regions of the United States look unbelievably different You will find mountains
in the West and plains in the Midwest The
Southwest is very hot and dry all year round The
states in the Northeast can get very cold and
snowy during the winter The South can be warm
This region is near the ocean.
5
Where did you say that came from?
The United States is rich in natural resources
The different regions of our country have different treasures in their soil, rocks, and waters Let’s look at a few states and their natural resources
Communities often develop where natural
resources are found Oil is one of the natural resources that attracted lots of attention in the
early 1900s Oil is a fuel
found beneath the ground
Fuels provide us with heat, light, and other forms of energy Oil is used to make the gasoline that powers cars and other vehicles
Texas is famous for its oil When large underground supplies of oil were found
in Texas, its population grew quickly People moved there to work in the oil fields
This oil well is spewing oil that has been trapped underground for millions of years
Trang 5Idaho is a state in the Northwest Much of its land is used for farming Idaho is famous for its
abundant potato crop Its soil is good for growing
wheat and trees
The state of Wisconsin is in our nation’s Midwest This state has lots of farmland, trees,
and livestock Livestock are farm animals, such
as cows Wisconsin has a lot of cows and is
known for its dairy products, such as milk and
cheese Wisconsin also produces the most paper
in our country
Idaho potatoes are sold in grocery stores throughout the United States.
7
“California, here I come!”
It was mentioned earlier that communities are often built in areas where natural resources are found That is exactly what happened in 1848 when gold was found in California
Gold is a very valuable mineral A mineral is
a natural resource that has never been alive The discovery of gold in California caused thousands
of people to journey west and seek their fortunes
This big westward movement became known as the Gold Rush
The gold miners were nicknamed “forty-niners” because the busiest year for gold mining in California was 1849.
Trang 6Can you dig it?
Gold is usually found buried in rock Sometimes
it is mixed with loose soil Miners panned for gold
in the Old West by swirling water from muddy
streams in pans to separate the tiny gold flecks
from the dirt
Later, people dug deep holes called mines in the earth to search for larger chunks of gold A
miner’s job was to get the nuggets, or chunks, of
gold out of the mine so that it could be sold
Many people who took part in the Gold Rush wanted to find gold for
themselves Others followed
the crowd looking for different
kinds of work
Gold is a shiny yellow mineral
9
Fewer than fifteen thousand settlers lived in California before the Gold Rush Between the discovery of gold in 1848 and the end of the Gold Rush in 1850, about eighty thousand people moved there Soon after, California became this country’s thirty-first state
By 1858 the population of California had grown to 300,000 people Many of those people made their living by farming
Trang 7Forests are unbelievable!
Forests are one of our most precious natural resources They provide homes for wildlife They
produce oxygen for us to breathe They shade us
from the sun’s rays
The trees in forests are very important in the building industry too Lumber comes from
trees It is wood that is cut into boards for
building Wood from trees is also used to make
paper and furniture
Here is a chart showing some of the different natural
resources used by people in the United States.
11
“That’s a lovely tree you are wearing!”
What is the first thing you think of when
you hear the word tree? Firewood? Falling
leaves? Lumber at a construction site? Well, more than five thousand different products are made from trees, and you might find some of them rather surprising!
Many medicines come from trees A fabric called rayon comes from trees too Bowling balls, football helmets, hairspray, paints, tires, cough drops, and gum are all made from trees
One of the greatest thing about trees, though,
is that we can replace the ones we cut down
by planting new ones In other words, they are renewable resources If we are careful, trees will
never disappear!
Trang 8Will our natural resources
last forever?
Oil, coal, and natural gas are fuels We burn them to produce heat, electricity, and other forms
of energy All of these fuels were formed millions
of years ago and are buried in the ground
1859
America’s first oil field is drilled in Pennsylvania
1930s
Lots of oil is found
in Texas.
1839
The first steam shovel
is invented This invention makes it much easier to dig coal from the ground.
A Fuel Time Line
13
Slow Cooking Underground
Oil, coal, and natural gas are formed underground and usually stay there until someone digs them up Let’s take a look at how oil forms Coal and natural gas form essentially the same way
1973
The price of oil goes way up
in the United States People have to wait in lines for hours at gas stations to fill
up their gas tanks.
2004
Scientists predict that plankton, sunflowers, and bananas may be the fuels of the future.
1997
The gas-electric hybrid car is introduced in Japan It can run
on gas or electricity.
Trang 9Oil takes a really long time to make In fact, the oil
we use today started forming three hundred million
years ago, even before dinosaurs roamed Earth!
Back then, billions of tiny plants and animals were living in the salty waters of Earth’s oceans
When these ocean creatures died and sank to the
bottom of the water, they formed a muddy layer
Over time, the plant and animal bodies were
buried under more and more layers of mud All of
those layers created lots of pressure and heat in
the ocean floor As the mud turned to rock, those
dead plants and animals got “cooked” and turned
into thick, gooey oil
Oil is sometimes called “black gold” because
it is such a valuable natural resource.
15
Water: We Cannot Live Without It
Conserving our natural resources is a very important job We already know that our oil supplies could disappear in another century
or two Our supply of underground water is decreasing
Every time it rains or snows, water soaks into the ground through soil and cracks in rock We dig wells to get to this “groundwater” and use
it for everything from drinking to cooking to watering crops
There is a problem, though Rainwater cannot soak into hard surfaces, such as roads and parking lots, so it forms puddles on the pavement The water cannot get through the pavement and get back in the ground, threatening our groundwater supplies
Unfortunately, oil, coal, and natural gas are not like trees They are not renewable Once we find and use all the oil, coal, and natural gas
in Earth’s crust, they will be gone forever We cannot “plant” new supplies of these fuels That
is why it is so important to conserve them
Trang 10Glossary
climate the kind of weather a place has from
year to year
communities places where people live, work,
and have fun together
fuel a resource that can be used to produce
light, heat, or other forms of energy
landform a shape or part of the earth’s
surface, such as a mountain or a desert
mineral a natural resource that has never
been alive
natural resources useful materials that
come from the earth
physical environment a region’s landforms
and climate
region a large land area that has
special features
Write to It!
You have learned about the natural resources
in the United States and how these resources differ from region to region Find out which resources are plentiful in your state Write two paragraphs about how people use them
Be sure to include information about jobs connected with your state’s natural resources
Write your paragraphs on a separate sheet of paper.
ISBN: 0-328-14830-X
Copyright © Pearson Education, Inc
All Rights Reserved Printed in the United States of America This publication is protected
by Copyright, and permission should be obtained from the publisher prior to any prohibited
reproduction, storage in a retrieval system, or transmission in any form by any means,
electronic, mechanical, photocopying, recording, or likewise For information regarding
permission(s), write to: Permissions Department, Scott Foresman, 1900 East Lake Avenue,
Glenview, Illinois 60025.
1 2 3 4 5 6 7 8 9 10 V0G1 14 13 12 11 10 09 08 07 06 05
Illustration
3 ©Guy Porfirio
Photographs
Every effort has been made to secure permission and provide appropriate credit for photographic material The publisher deeply regrets any omission and pledges to correct errors called to its attention in subsequent editions.
Unless otherwise acknowledged, all photographs are the property of Scott Foresman, a division of Pearson Education.
Photo locators denoted as follows: Top (T), Center (C), Bottom (B), Left (L), Right (R) Background (Bkgd) Opener: ©Wendell Metzen/Index Stock Imagery
2 ©Royalty-Free/Corbis
4 ©Wendell Metzen/Index Stock Imagery
5 ©Corbis
6 ©David R Frazier Photolibrary, Inc./Alamy Images
7 ©The Granger Collection, NY
8 ©Tom Myers
10 ©Mineral Information Institute
14 ©Peter Skinner/Photo Researchers, Inc.
All people have needs We need food, clothes,
and a safe place to live None of these needs
could be met without natural resources Natural
resources are materials from the earth Read on
and find out about the valuable resources from
our land from sea to shining sea
Vocabulary
natural resources
region physical environment
landform climate communities
fuel mineral lumber