Sra: Imagine It!, Themes, Taking a Stand, Ancient Civilizations Ecology, Great Expectations, Earth in Action, Art and Impact, Level 6



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Meet the Author

Elizabeth Van Steenwyk

Van Steenwyk decided at ten years old that one day she would be an author. She has now written more than sixty books for young readers and more than two hundred articles and short stories. Van Steenwyk loves to discover new ideas about which to write. She believes the most important traits for a writer are patience, curiosity, persistence, creativity, and a love of dreaming. She wrote One Fine Day in celebration of the hundredth anniversary of the Wright brothers' historic flight.

Meet the Illustrator

Bill Farnsworth


Farnsworth has always wanted to be an artist. He has been painting for magazines, advertisers, book publishers, and private clients for more than twenty years. Farnsworth always does a lot of research into each subject before beginning his illustrations. His goal as an artist is to tell a story through his pictures as if there were no words. He also hopes that people looking at his work will be able to feel as though they are at the setting for the art.
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Great Expectations: Theme Connections

Within the Selection

1. What was the difference between the 1903 Flyer and the devices the Wright brothers had flown before?

2. Why, according to Orville, had previous inventors failed to build a successful flying machine?

Beyond the Selection

3. How does "One Fine Day" add to your understanding of the theme Great Expectations?

4. How did the Wright brothers help make the 1900s different from the 1800s?

Write about It!

Describe an invention you would like to create that could change today's world.

Remember to look for pictures of airplanes and other aircraft for the Concept/Question Board.


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Social Studies Inquiry: Aviation Spreads Culture

Genre


A column shares the thoughts and ideas of the columnist. It usually contains both facts and the columnist's opinions.

Feature


Cause/Effect Diagrams tell why something happens.

The next time you visit an airport's international terminal, try to notice the influence aviation has had on the spread of culture. In these terminals, tourists carry cultural artifacts from all over the world.

They wear clothing from India. In their luggage are works of Russian art. Recipes for Italian food have been written down or remembered. They practice new steps learned from dances they saw in Africa. Tourists leave the United States with music, clothes, and other pieces of our culture.

You might find travelers studying translation dictionaries in airports. They are learning words they can use in the countries they are about to visit. Young children deplane speaking bits of the local language they learned while away. This likely helped make their trip even more exciting and educational.

When people move to a new country, air travel allows frequent visits back to their home country. Relatives come to visit too. This exchange keeps cultural traditions alive.

Even if you never travel, aviation makes it easy to enjoy the cultures of the world. Arts, crafts, games, and clothes of the world have become more available because of air travel. Even food benefits from aviation. For example, a restaurant in New York City can fly in a rare Hawaiian fish in the morning and include it on the dinner menu.

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Since the mid-1950s, air travel has increased rapidly. The amount of mail and goods shipped by air has also increased. Pen pals from across the world can exchange letters more quickly. Newspapers from other countries arrive at your doorstep sooner than expected.



Air travel has made the world a smaller place. Much more than music, newspapers, and ethnic food recipes have been shared. Aviation has helped bring about a new multicultural era .
Think Link

How does the cause/effect diagram help you figure out the main idea?

What are some ways air travel helps to spread culture?

Think about everyday things and experiences you enjoy. Which of these borrow from other cultures? What role do you think the airplane might have played in bringing these things and experiences to your attention?

Try It!

As you work on your investigation, think about how you can use cause/effect diagrams to organize your information



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Vocabulary: Warm-Up
Read the newspaper editorial to find the meanings of these words, which are also in "Beneath the Streets of Boston":

* subway

* excavated

* perpendicular

* chaotic

* hub

* notoriously

* calculations

* modified

* commence

* constitute

Vocabulary Strategy



Context Clues are hints in the text that help you find the meanings of words. For example, suppose you did not know the meaning of subway . You might be able to figure out its meaning from clues in the next sentences.

We are spending a fortune on railways. They cost millions of dollars per mile of track. A subway costs even more. Being underground, subways do not block traffic as most railroads do. Even so, they make matters worse for many years before they get better. Building subways calls for excavated streets that stop the flow of traffic.

An elevated railway also impedes traffic during its construction, as perpendicular supports need to be built into the ground. Our problem is not that we do not spend enough on railways. The problem is our chaotic city and county planning.

In a city where rail transportation works, the inner city acts like a hub . People travel into the city for work. They then return to homes in the suburbs or other parts of the city. Most jobs are located within walking distance of a rail station or hub. So are many stores, restaurants, and services. Workers can do their shopping and errands at lunch or after work.


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Our city, however, is not like that. It is notoriously spread out and dependent upon the automobile.

By my calculations , two-thirds of county workers commute from suburb to suburb. They may drive to a business park miles from the nearest train station, restaurant, store, dentist, or cleaners. If they take the bus, they cannot do their shopping and errands at lunch or after work. Workers are moving farther from the city's center to find housing they can afford.

Our planning must be modified to encourage the use of trains. We cannot afford to bring enough trains to the jobs and homes that are scattered far outside the city. We can commence by bringing more jobs and homes closer to the train station. These homes should be affordable to the employees of nearby businesses.

In the future, we must do a better job of putting homes, jobs, and services near one another. We must think about building in a way that makes it easy to serve people with public transportation. Better transportation lines and more realistic planning would constitute a good strategy.

Game


Synonym Challenge Work with a partner. Write ten sentences. Each sentence should use a synonym or definition in place of one of the vocabulary words. Exchange sentences with your partner. Replace the synonyms or definitions in your partner's sentences with the proper vocabulary word.

Concept Vocabulary

The concept word for this lesson is modernization. Modernization means making things more up to date or modern in appearance. What type of modernization helped people travel in Boston? How does modernization connect with the theme Great Expectations?
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Beneath the Streets of Boston

written and illustrated by Joe McKendry

Genre

Expository Text tells people something. It contains facts about real people, things, or events.

Comprehension Strategy: Adjusting Reading Speed



As you read, adjust your reading speed to ensure that you understand the most challenging and vital information in the text.

Focus Questions



Why was a public transportation system needed in Boston? How did the efforts of the Boston Transit Commission "open up" the city?
Production note: this image crosses the gutter to appear both on page 402 and page 403 in the print version.

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Production note: this image crosses the gutter to appear both on page 402 and page 403 in the print version.

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One hundred ten years ago, downtown Boston faced traffic problems unlike any it had ever known. The area stretching from Boston Common to South Station was densely packed with businesses large and small that drew thousands of people every day. Everything from buying a hat to taking out a bank loan to visiting government offices or going to the theater brought thousands of people into the downtown business district. At its busiest, the stretch of Tremont Street running alongside Boston Common could become so crowded with trolleys and carriages that locals joked that it might be faster to climb atop the trolley cars and walk to their destinations. Knowing the situation would only deteriorate, Massachusetts Governor Frederick T. Greenhalge and Boston Mayor Nathan Matthews established the Boston Transit Commission to develop better ways to manage traffic through the city.


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Boston's traffic problems surfaced during the 1890s, but their roots stretched back half a century to the years when the city's population truly began to explode. During the 1840s, Boston was the first stop in the New World for thousands of desperate and hungry immigrants fleeing Ireland's disastrous potato famine. A steady stream of immigrants from Italy, Germany, and Eastern Europe added to the numbers, and in just ten years Boston's population swelled from 90,000 to 135,000.

These newcomers often arrived with little more than the clothes on their backs. Eager to establish themselves in their adopted country, they gladly took any work that was offered, providing a steady and welcome supply of new hands for the city's manufacturers.

The widespread implementation of the steam engine as a power source for factories coincided with their arrival, enabling manufacturers to locate their businesses wherever they chose -- not just near rivers, which for years had been the only source of power. Business owners, eager to take advantage of cheap labor and new technology, moved their factories to Boston and hired immigrants to operate the machinery.

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Public transportation was all but non-existent. Workers had little choice but to live within walking distance of their workplaces. Unscrupulous landlords left their tenement buildings in disrepair and charged high rents -- often much higher than more comfortable apartments in other parts of the city. Before long, Boston's residential areas--especially the West End and the North End--were crowded with poor families living in miserable conditions.



Boston's initial solution to the growing need for public transport was the horse-drawn trolley, which freed workers to leave the slums. Anyone could commute to work at a cost of 8 cents per day. Businessmen also made good use of the trolleys: before the invention of the telephone they had had to cross the city on foot to conduct their business. New tracks were laid at a rate that barely kept pace with demand. Residents in the nearby towns of Roxbury, Cambridge, Somerville, and South Boston came to rely on the trolley to get into the city for their everyday needs.

Before long, traffic jams had become daily nuisances, especially on Tremont Street where many of the major trolley lines converged. In 1889, electricity began replacing horse power on Boston's ever-expanding trolley system. The new source of power was cleaner and more efficient, but did little to ease the growing problem. By 1895, a crush of four hundred trolley cars joined a flood of private carriages, horse-drawn cabs, and commercial wagons during rush hour on Tremont Street--a chaotic, frustrating convergence of vehicles.

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Faced with a steadily deteriorating situation, the Boston Transit Commission recommended the construction of an interconnected system of subway and elevated railway lines. The four proposed lines would connect at or near Tremont Street, the hub of the city's activity. From there, they would branch out into the surrounding communities. Boston's subway would be the first ever built in the United States; New York City had considered building a subway as early as the 1860s, but would only complete its first tunnel in 1904, seven years after Boston's first tunnel was put into service.


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Public transportation systems had already met with success in Europe, but in the United States building a subway was still a new and dangerous job requiring a mastery of both terrain and technology. To understand the many challenges they were facing, engineers looked first to London, which opened an underground railroad for steam trains in 1863 and its famous 'tube' for electrically powered trains in 1890. Subways in Budapest and Glasgow, completed a year before Boston's tunnel opened, also provided engineers with useful insights.

Boston's rapid transit trains would ultimately pass under and over existing roadways. They would flow beneath Boston Harbor, span the Charles River, and tunnel through Beacon Hill. Each branch of the system would ultimately demand that the builders develop innovative construction methods.

Cut-and-Cover Tunnel

On the morning of March 28, 1895, a groundbreaking ceremony was held on the Boston Common. Governor Greenhalge presented a shovel to Transit Commission chairman George Crocker saying, "It is my privilege to hand you this shovel, with which you are to commence the work of the subway. I hope the building of the subway will bring the relief which the people of Boston seek." After the groundbreaking, construction began.


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Workers fenced off the corner of Boston Common at Park Street to start digging the tunnel. Tunnel workers, or "sandhogs," used picks and shovels to loosen the earth and load it into wooden horse carts. Some of the earth was used to level uneven ground on parts of Boston Common and Public Garden, but most was hauled away to landfills at night by gravel cars on the Boston & Maine railroad.


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To keep the earth walls of the trench from collapsing, workers built temporary wooden bracing for support. The bracing also served as a "road" for one of the most important pieces of equipment used in the subway's construction. The "traveller" was a large platform with concrete mixing equipment and wooden cranes that could be rolled across the worksite on a set of rails. Another set of rails beside the trench was used to move fresh concrete from the mixer to points along the tunnel. The same set of rails was used to carry away loads of excavated earth.

A coal-fired steam engine powered the cranes. Operators used a system of levers to control the cranes' positions and to operate the winches that paid out steel cables that raised and lowered materials into the trench.

Once the trench was deep enough, work began on the walls and floor. Both were made using a combination of concrete, steel beams, reinforcing bar, and a layer of waterproof grout.

The roof of the tunnel was made by building brick arches between steel support beams, perpendicular to the tracks. Bricklayers used wooden molds to hold the shape of each arch as they placed their bricks. Once the mortar had dried, the wooden mold could be removed and re-used to create the next arch. The roof, finished with a layer of concrete and water-proofing, was then covered with soil.

Blocks of granite were shipped from a New Hampshire quarry and used to build entrances above Park Street and Boylston Street stations. Below, stairs were installed and station platforms were built.

Inside the tunnel, wooden ties were nestled into a bed of crushed-stone ballast and steel rails were fastened to them with heavy iron spikes. Overhead, electricians connected a high-voltage cable, set into a wooden track that guided the conducting rod that provided electricity to the trolley.
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Residents and passersby -- soon to be the subway's passengers -- stopped to watch the stonemasons at work and to air their opinions about the tunnel and its new entrance buildings. Most believed the subway was a good idea, but a handful remained skeptical about traveling below ground -- a place many associated with death and burial. That association colored the way some people viewed the subway: one critic described the station entrance buildings as resembling "the plainer type of mausoleums that are seen in the great cemeteries of Paris."

With most of the digging completed between the Public Garden and Park Street, work began on the details, which included replanting grass and repaving streets that construction had disrupted. To ensure a cheerful atmosphere, and to help relieve the gloom some people expected, lights were installed and a bright coat of white paint was applied to the walls and ceiling of the tunnel. Stations were furnished with benches, turnstiles, and signs to direct passengers.

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Just before 6:00 a.m. on the morning of September 1, 1897, motorman James Reed and a trolley full of passengers rolled down into the tunnel. A short while later, passengers began streaming down the stairs at Boylston Street and Park Street stations.

By all accounts, the Tremont Street tunnel was an immediate success. The improvement in above-ground traffic was so dramatic and proved such a relief to commuters that one passenger described the effect being "like removing a blockade from a river."

Building the elevated railway, or the "EL" as it became known, would be less expensive than building a tunnel, which required tearing up streets and re-routing utility lines.

The successful completion of the elevated railway allowed planners to focus their attention on the third phase of the Boston Transit Commission's plan: construction of an underwater rapid transit tunnel that would create a much needed connection between Boston and East Boston. It would be the first tunnel of its kind in the United States, and once again engineers and planners faced unusual challenges as pioneers in a notoriously costly and dangerous field of construction.

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Underwater Tunnel

The ferry was Boston's oldest form of mass transportation, and played a critical role in the early development of the peninsula-city. Before the industrial era, Boston's neighbors by the Charles River and Boston Harbor could easily be reached by boat. But by the early 1900s, the increasing dependence of Boston's industries on a work force housed outside city limits meant overcrowding and delays on the steam ship line connecting East Boston to the city. Impatient with slow, unreliable, and uncomfortable service, frustrated citizens demanded a better, faster, and easier way to cross the harbor.

Work began by drilling into the soil below the harbor and bringing test samples to the surface for analysis. Planners searched for a route containing consistent, firm soil to reduce the chances of a tunnel collapse.

Once the route was determined, workers started digging the tunnel from both sides of the harbor, moving slowly toward a central meeting point. The tunnel on the East Boston side was built as a gradual slope, starting at street level so trolleys could enter the tunnel. On the Boston side, a vertical shaft was excavated to a depth of 60 feet. From that point, workers started digging in two directions; one group heading below the harbor and the other toward the Tremont Street tunnel, where the line would connect with the existing subway.


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Workers used a modified version of an invention called a tunnelling shield. Engineers in London had successfully built two tunnels below the Thames River using the device, whose sturdy cast-iron construction protected workers from a sudden collapse of the tunnel walls. The tunnel's arch was assembled in segments behind the rear part of the shield as sandhogs excavated beneath its forward face. As each section was finished, the shield was moved forward and the process was repeated.


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A. Concrete sidewalls were built in advance to act as the "road" for the shield.

B. Workers used picks and shovels to dig beneath the face of the shield.

C. Dirt was loaded into wooden carts and rolled away on a set of tracks.

D. Steel wheels at the base of the shield allowed it to roll forward. Powerful hydraulic jacks pushed it to the next section.

E. Concrete was mixed at the tunnel entrance and delivered to the face of the tunnel in carts.

F. The concrete arch was built in sections beneath the tail of the shield.

G. A wooden mold held the shape of the arch until the concrete dried.

H. The small space left by the tail of the shield was filled with grout for waterproofing.

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Pressurized air was used to support the tunnel walls and prevent them from collapsing. An airlock with three chambers was installed at the tunnel entrance; one chamber served as the entry, the second an exit, and the third allowed workers to move equipment and dirt in and out of the tunnel. Workers were required to wait inside the airlock's chamber for several minutes while their bodies adjusted to the increased air pressure. Entering or leaving the tunnel too quickly could cause bubbles of nitrogen to form in the bloodstream, resulting in nerve damage, paralysis, or even death. These symptoms, known as caisson disease, or "the bends," commonly affected tunnel workers.

To make sure the two tunnel headings didn't miss each other somewhere below the harbor, workers took frequent measurements with an instrument called a transit. The transit resembled a telescope, but had tiny crosshairs on the lens that allowed workers to accurately measure the angle and distance between fixed points. By making calculations based on those findings, they were able to determine both the direction and the depth of the tunnel.

Conditions in the tunnel were dirty, damp, and dangerous. Using picks and shovels, workers chipped their way through earth, seashells, and stone day and night, progressing at a rate of about four feet per day. The work was carried out in two ten-hour shifts: the day shift of 120 men working from 7 a.m. to 6 p.m. and the night shift of 110 working from 7 p.m. to 6 a.m. Each shift took one one-hour break -- at noon and midnight -- for lunch or dinner.

On July 4, 1903 the two sides of the tunnel met below Boston Harbor, completing the underwater route between East Boston and Boston. In the following months, tracks, electric wires, and ventilation pipes were installed, and on December 30, 1904 the tunnel opened to traffic.

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The East Boston Tunnel drastically reduced the time it took to cross the harbor. A trip that had often taken more than twenty minutes by ferry now lasted only seven minutes.



The fourth phase of construction would be a two-part project. The Cambridge tunnel -- running from Harvard Square in Cambridge through Park Street Station -- and the Dorchester tunnel -- from Park Street to Andrew Square in South Boston near the Dorchester line -- would together constitute the longest tunnel in Boston's rapid transit system.

On July 1, 1918, the tunnel opened to the public, and for the first time, subway trains carried passengers between Cambridge and South Boston. This important piece of the Boston Transit Commission's master plan completed a rapid transit system that reached out in all directions and made travel in Boston and its surrounding communities faster, cheaper, and more dependable than ever before.

Boston's subway introduced America to a new form of urban transportation, and soon other cities followed with subways of their own. Innovative engineering and construction set precedents in the field of subway construction and served as models for builders in years to come.
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