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【精品】2021秋人教版初中化学《绪言 化学使世界变得更加绚丽多彩》同步学案(解析版)

ID:24108 2021年08月01日 资料纠错 有奖上传 收藏
【内容简介】1.了解化学的研究的对象与内容,认识化学学习的价值,知道绿色化学的内容和特点。2.了解化学的发展简史,体会化学科学对人类进步和社会发展的贡献,培养学习化学的责任感。3.激发学生对化学的好奇心及强烈的探究欲望,培养学习化学的兴趣。 1、什么是化学;2、绿色化学的内容和特点 一、什么是化学?化学是研究物质的        、        、        以及           的科学。它不仅要研究自然界已经存在的物质,还要研究和创造自然界原本不存在的新物质。【答案】组成、结构、性质 变化规律【练一练】化学是以自然界的物质为研究对象,它研究物质的性质、组成、结构及变化规律等.指出下列研究涉及食盐的哪个方面.(1)食盐在水中的溶解情况及它的味道:     ;(2)食盐中含有哪些元素:      ;(3)食盐的外形为什么是立方体:      ;(4)向食盐水中通电得到的物质是什么:         .【答案】性质 组成 结构 变化规律【练一练】世界权威科研类杂志《自然》评估显示,中国化学科研能力在2019年首次成为世界第一,下列不是化学研究范围的是(  )A.开发高效低毒农药促进粮食增收 B.研发新物质丰富我们的物质世界 C.改进汽车尾气处理装置提高空气质量 D.用射电望远镜观测天体运动【答案】D二、化学的重要作用化学在保证人类的生存并提高人类的生活质量方面起着重要作用:1.利用化学生产               ,以增加粮食的产量;2.利用化学合成       ,抑制                    ,保障人体健康;3.利用化学开发        和        ,以改善人类的生存条件;4.利用化学综合应用                      ,以使人类生活得更加美好。【答案】1.化肥和农药 2.药物 细菌和病毒 3.新能源 新材料 自然资源和保护环境......
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    【精品】2021秋人教版初中化学《绪言 化学使世界变得更加绚丽多彩》同步学案(解析版)