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教科版《科学》四上第一单元《空气》︱单元复习

  • 2026-10-28 15:35:14
教科版《科学》四上第一单元《空气》︱单元复习

本学期教科版四年级科学教材改版，第一单元的内容变更为了《空气》。虽然总体来说与前一个版本三年级对应单元的内容差别不大，但总归是放到了高一个年级，侧重上会有所区别。接下来就让我们来看看具体的一些知识点内容吧。

如果是购买过实验盒的家长，可以拿出实验盒里的思维导图，让孩子参照着来画一画，填一填上面的空格，自查下掌握程度。

思维导图
知识点梳理
空气流动产生力量
在线题库练习

期末快到了，同学们可以用科学鱼的免费题库来练一练：

长按识别小程序码

进入科学鱼在线题库

选择孩子目前就读的年级

即可免费练习

知识点文档下载
如果要下载打印版本的思维导图+知识点

请添加燕子老师微信

并备注孩子年级

免费视频网课
声音
第一课：感受空气
第二课：空气能占据空间吗
第三课：空气占据的空间会改变吗
第四课：空气有质量吗
第五课：空气的流动
第六课：我们来做“热气球”
第七课：风的成因
第八课：自制打气筒
本文来自网友投稿或网络内容，如有侵犯您的权益请联系我们删除，联系邮箱：wyl860211@qq.com 。

苏科版九年级数学上册期中考试模拟试卷(3)

基本 文件 流程 错误 SQL 调试
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  1. CONNECT:[ UseTime:0.000759s ] mysql:host=172.18.0.4;port=3306;dbname=www_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001005s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000464s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000297s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001190s ]
  6. SELECT * FROM `set` [ RunTime:0.000284s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000563s ]
  8. SELECT * FROM `article` WHERE `id` = 528953 LIMIT 1 [ RunTime:0.000355s ]
  9. UPDATE `article` SET `lasttime` = 1793194452 WHERE `id` = 528953 [ RunTime:0.001377s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000297s ]
  11. SELECT * FROM `article` WHERE `id` < 528953 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000380s ]
  12. SELECT * FROM `article` WHERE `id` > 528953 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000366s ]
  13. SELECT * FROM `article` WHERE `id` < 528953 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000490s ]
  14. SELECT * FROM `article` WHERE `id` < 528953 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000526s ]
  15. SELECT * FROM `article` WHERE `id` < 528953 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000706s ]
0.092301s