Concrete Source: MIT Scientists...

Which detail supports the central idea of the text?

• “ ‘Concrete is maybe one of the oldest man-made materials on earth.’ ”

• “Thirty billion tons of concrete are manufactured globally each year.”

• “ ‘Cement is basically limestone and clay.’ ”

• “This version is stronger, more durable, and greener. They call it green concrete.”

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CCSS.RI.6.2

CCSS.RL.6.2

CCSS.RL.5.1

CCSS.RL.6.1

CCSS.RL.7.1

Which statement answers why MIT conducted the research study of concrete?

• “Let’s face it—concrete is boring. Most of us recognize it instantly, when we see hideous flats and offices from the 1960s and 1970s, that for a brief moment were the cutting edge of architecture.”

• “ ‘Concrete is relatively inexpensive. It’s a forgiving material—it can be mixed by ordinary laborers, and used in climates ranging from the South Pole to the tropical mid part of the Earth. It can also get hard under water.' "

• “This process of combining of water, cement paste, sand, and rock creates an awful lot of CO2 gases—which are linked by some scientists to global warming—about five to 10% of the world’s total emissions.”

• “Longer-lasting buildings mean fewer workers, but higher buildings and longer bridges made with the new tougher cement paste might mean more jobs.”

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CCSS.RI.6.2

CCSS.RL.6.2

CCSS.RL.5.2

CCSS.RI.5.2

CCSS.RL.7.2

Which quote from the text suggests the future of concrete?

• “Let’s face it—concrete is boring.”

• “When you meet the researchers, their passion for concrete becomes infectious.”

• “The way that concrete is mixed is very simple says Professor Ulm.”

• “This version is stronger, more durable, and greener.”

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CCSS.RL.2.6

CCSS.RL.8.3

What is the meaning of the word innovative in the sentence below from paragraph 28?

“Their inventive phase will undoubtedly lead to a compelling innovative phase far from the Cambridge-based campus.”

• traditional

• creative

• distant

• recent

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CCSS.RI.6.4

CCSS.RI.7.4

CCSS.RL.5.4

CCSS.RL.6.4

CCSS.RL.7.4

Which is a possible drawback of the use of green concrete?

• a decrease in the cost of building over time

• a reduction of the number of potholes on roads

• a negative effect on the financial situation of construction workers

• an increase in the life span of building foundations

What is the impact of the author’s use of questions in paragraph 29?

• It encourages the reader to develop a position on the topic of concrete.

• It allows the reader to reflect on the possibilities of using the new concrete.

• It creates background knowledge on the MIT studies of concrete.

• It persuades the reader to accept the author’s position on green concrete.

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CCSS.RI.6.6

CCSS.RI.6.9

CCSS.RL.6.6

CCSS.RI.7.9

CCSS.RL.5.6

What was the author’s purpose for writing this text?

• to highlight the need for a concrete that does not produce as much CO2

• to provide a detailed history of the uses of concrete

• to invite workers for a new invention currently planned at MIT

• to provide information about changes that needed to take place in the construction industry

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CCSS.RI.6.6

CCSS.RI.6.9

CCSS.RL.6.6

CCSS.RI.7.6

CCSS.RL.7.6

Which statement summarizes this text?

• Environmentally-friendly concrete is being developed by scientists.

• Concrete has been around for centuries and is used all around the world.

• It is impossible to recreate concrete in a laboratory setting.

• Concrete is the hardest substance found on Earth.

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CCSS.RI.6.2

CCSS.RL.6.2

CCSS.RL.5.2

CCSS.RI.5.9

CCSS.RI.7.2