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A picture is worth a thousand words W.7.2a Question & Answer Key Resources Grade 7 English Language and Arts - Skill Builder + PARCC Assessment Rehearsal

Grade 7 English Language and Arts - Skill Builder + PARCC Assessment Rehearsal A picture is worth a thousand words

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Today, we have high-tech cranes and other machines to help us create massive skyscrapers and other modern works of architecture. Still, some of the most breathtaking architecture in the world, such as the ancient pyramids of Egypt, were created before those high-tech machines even existed. So how did those ancient civilizations create them?
Believe it or not, though they are one of the most studied and admired relics in history, there is no evidence to tell historians exactly how the Ancient Egyptians built the pyramids. Thus, they have been left to create their own theories as to how Egyptians created such amazing and awe-inspiring works of art.
According to one theory, the Egyptians placed logs under the large stone blocks in order to roll or transport them to the pyramid building location. Large groups of men would work to push or pull them into place (although historians also disagree on whether these men were slaves or skilled artisans). Still more, once the men moved the blocks to the pyramid location, they needed to lift them to ever-increasing heights to reach the top levels of the pyramid as it grew. Without modern cranes, many scientists have been baffled as to how they were able to do it. Some believe they used a ramp system that would allow them to roll the blocks upward around or through the pyramids; others believe they must have used a combination of pulleys and lifts. Still, most agree that once they did, they used a mixture of gravel and limestone to help fill any crevices and hold the mound together.
With such a primitive yet impressive building process, it’s obvious that the pyramids must have taken a great deal of time to build. With an estimated 2 million blocks weighing an average of 2.5 million tons each, the Great Pyramid of Giza, for instance, is estimated to have taken some 20 years to build. At 481-feet tall, it held the record of tallest building for 3,800 years – not bad for a building created almost entirely by hand.
Even though scientists don’t know exactly how the Egyptians did it, they do know that the method the Egyptians used to build pyramids changed over time. In the early days, the pyramids were made completely of stone, with limestone used to create the main body and higher quality limestone being used for the smooth outer casing. Later on, the pyramids were made mostly of mud brick with a limestone casing. Though they were likely much easier to build, they didn’t stand up nearly as well over time, leaving archaeologists with even fewer clues about their creation.

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