From Trees to Paper

Reading Comprehension From Trees to Paper Most of what you read is printed on paper. You may already know that paper comes from trees, but have you ever wondered how it is made? Thick, hard wood goes through many steps before it turns into soft, thin paper. Paper can start out in one of three ways. A lot of it is made from trees that are grown for that reason. But paper can also be made using the many bits of wood left over when boards are cut to make houses and furniture. And, more and more, paper is made from old paper that has been recycled. When a tree is cut down to make paper, it is brought to a sawmill. There it is given a bath, and then its bark is peeled off. After that, the tree trunk is cut into small chips. Those chips are mixed with water and chemicals to break down the wood even further into small, thin threads called fibers. All the fibers are in a thick, mushy soup called pulp. The pulp is now ready to be turned into paper. To do this, all the water has to be removed from it. The pulp is sprayed onto huge screens. The screens trap the fibers while letting the water leak through. Next, heavy weights press the screens to squeeze even more water out of the fibers. Finally, the screens are heated. As the fibers dry, they connect to one another to form a long, wide sheet of paper. The sheets of paper go onto rollers to make one long roll of paper. Finally, these rolls are shipped to paper factories. There the paper is turned into writing pads, envelopes, grocery bags, and other paper products. When you think about it, most of us would be lost without all the things we make from paper. ™ © Advanced Assessment Systems/LinkIt! Duplication is restricted to licensees only.

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