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复习课件 | 暖宝宝中的金属材料——金属及金属材料复习课

  • 2026-04-09 07:40:24
复习课件 | 暖宝宝中的金属材料——金属及金属材料复习课

前 言

本节复习课创设了探究暖宝宝的真实情境,将金属的整个单元内容融会贯通,真正地让学生自主学习、合作学习、探究学习。调动了学生的学习积极性,从而提高了复习课的质量。

向上滑动查看教学思路

    1. [情境引入]听说今年的冬天是个大冷冬,同学们准备怎么度过这个寒冷的冬天?让自己暖和起来?[学生]运动、多穿一些、用取暖器、用暖宝宝。[教师追问]有谁用过暖宝宝吗?用时有什么感觉?[学生]暖暖的。而且能暖和好几个小时。

    2. [教师提出驱动性总任务]那你用的过程中对暖宝宝有什么疑问吗?

      [拆解成子任务]暖宝宝为什么会发热?里面是什么成分?暖宝宝可以回收利用吗?[过渡]那就让我们带着同学们的疑问走近暖宝宝。

      教学环节一:认识暖宝宝中的成分[资料卡1]暖宝宝成分表:铁粉、水、食盐、活性炭、蛭石、吸水树脂。

      蛭石是当今世界首屈一指的超级保温材料;吸水树脂能够吸收自身重量几百倍至几千倍的水分,具有很强的吸水功能,保水能力特高。

      [学生实验1]撕开暖宝宝,用剪刀剪开其中的白色包装袋,倒入一半的粉末于小培养皿中,观察。[学生]观察到暖宝宝中有一些黑色物质。[教师追问]结合资料跟PPT上的图片,你觉得黑色物质是什么?

      [学生]铁粉和石。

      1. .........

      01

      2026年中考化学复习课件(陆续更新中)

       点击课件封面,直达课件预览👇

      02

      2025版中考化学复习课件

      点击课题 预览课件👇

      1.复习课件 | 自制管道疏通剂
      2.复习课件 | 奥运火炬中的碳中和——初中化学计算复习
      3.复习课件 | 第2单元《空气和氧气》复习课
      4.复习课件 | 小茶垢,大学问——基于生活情境渗透劳动教育复习课
      5.复习课件 | 探究双效泡打粉——《盐》专题复习课
      6.复习课件 | 探析维C泡腾片
      7.复习课件 | 探究酒精燃烧,再识化学变化
      8.复习课件 | 铜眼看世界——金属铜的性质
      9.复习课件 | 拯救珊瑚礁——有关二氧化碳知识复习
      10.复习课件 | 玩转气体——气体的制备、净化与收集
      11.复习课件 | 汽车中的化学密码
      12.复习课件 | 化说粽子——应用广泛的酸、碱、盐
      13.复习课件 | 绿意繁花——含铁物质的转化及应用
      14.复习课件 | 暖宝宝中的金属材料——金属及金属材料"复习课
      15.复习课件 | 水稻的一生——化学视角下的农业生产
      16.复习课件 |探秘果蔬洗盐——盐的化学性质复习课
      17.复习课件 | ”天气瓶“的秘密——溶液复习
      18.复习课件 | 绣球花色随心调——酸碱盐复习
      19.复习课件 | 自制户外火锅燃料——燃料的变迁与合理使用
      20.复习课件 | 探寻章丘铁锅——含铁物质的转化及其应用
      21.复习课件 | 自制西瓜霜
      22.复习课件 | 古画中颜料密码
      23.复习课件 | 洗衣剂的化学奥秘——草木灰到爆炸盐的科学探究
      24.复习课件 | 酸碱复习

      03

      2024版中考化学复习课件

      点击课题预览课件👇

      1.复习课件 | 身边的物质——二氧化碳和氧气

      2.复习课件 | 华山论剑——金属复习课

      3.复习课件 | 中国梦,航天梦——燃料的利用与变迁

      4.复习课件 | 跨学科实践——铁系食品脱氧剂

      5.复习课件 | 制作蓝色固体酒精

      6.复习课件 | 空间站中的氧气从哪里来——氧气的制备复习

      7.复习课件 | 火山爆发的联想——酸、碱、盐复习

      8.复习课件 | 易拉罐之“来有影去有踪”——金属与金属矿物

      9.复习课件 | “魔壶”——酸碱盐复习

      10.复习课件 | 胃病诊疗中的化学——酸、碱、盐单元复习”的项目式复习

      11.复习课件 | 皮蛋的一生——碱的性质专题复习

      12.复习课件 | 皮蛋的一生——碱的性质专题复习

      13.复习课件 | 造纸中的化学

      14.复习课件 | 拯救酸化的海洋——CO2有关知识复习

      15.复习课件 | 再识复分解反应

      16.复习课件 | 牙膏中的化学

      17.复习课件 | 中国梦,航天梦——质量守恒定律复习

      18.复习课件 | 神奇的蜡烛——“认识化学变化"复习

      19.复习课件 | 探究百变瓶的奥秘——  酸、碱、盐主题化探究式复习

      20.复习课件 | 探究豆腐制作中的点卤剂——“盐"复习课

      21.复习课件 | 探究自热火锅发热剂——“酸、碱、盐专题复习”的项目式复习

      22.复习课件 | 探秘洁厕剂——常见的酸复习

      23.复习课件 | 探秘石头纸

      24.复习课件 | 探秘苏打水——溶液项目式复习

      25.复习课件 | 鱼在囧途——氧气主题复习

      26.复习课件 | 蓝色妖姬——硫酸铜玫瑰花(溶液的复习)

      27.复习课件 | 敦煌壁画的创作——含铁物质的转化与应用

      28.复习课件 | 厨房中的化学

      29.复习课件 | 碱性电池中的化学——酸碱盐主题式复习课

      30.复习课件 | 秸秆变形记——燃料及其利用复习课

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      1. CONNECT:[ UseTime:0.000580s ] mysql:host=127.0.0.1;port=3306;dbname=a_sjds;charset=utf8mb4
      2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000824s ]
      3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000286s ]
      4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000304s ]
      5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000523s ]
      6. SELECT * FROM `set` [ RunTime:0.000210s ]
      7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000621s ]
      8. SELECT * FROM `article` WHERE `id` = 491297 LIMIT 1 [ RunTime:0.000458s ]
      9. UPDATE `article` SET `lasttime` = 1775710857 WHERE `id` = 491297 [ RunTime:0.012960s ]
      10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.004315s ]
      11. SELECT * FROM `article` WHERE `id` < 491297 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.003061s ]
      12. SELECT * FROM `article` WHERE `id` > 491297 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.006427s ]
      13. SELECT * FROM `article` WHERE `id` < 491297 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.011307s ]
      14. SELECT * FROM `article` WHERE `id` < 491297 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.014953s ]
      15. SELECT * FROM `article` WHERE `id` < 491297 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.027490s ]
      0.152781s