How Do Bridges Work?

What is the main idea of the passage?

• Different types of cars that cross bridges

• Why bridges are dangerous

• How bridges are built and why they are important

• How to become a construction worker

What is a beam bridge?

• A bridge made of ropes

• A bridge that hangs from cables

• A simple flat bridge supported at both ends

• A floating bridge

Which detail supports the idea that bridges have changed over time?

• “Workers use machines and tools…”

• “Some ancient bridges were made of rope and wood…”

• “Bridges are made from steel…”

• “Bridges are fun to walk on…”

What does an engineer do when building a bridge?

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What is the purpose of a suspension bridge?

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How do bridges help people in their everyday lives?

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Why is teamwork important when building a bridge?

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What is one example of a famous suspension bridge?

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Which sentence best summarizes the last paragraph?

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Why is math important when designing a bridge?

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