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小学科学《水结冰了》优质课件分享

  • 2026-07-26 11:21:04
小学科学《水结冰了》优质课件分享
❄️课件主题亮点
动态完整模拟水降温结冰全过程，可视化展示温度、形态变化，搭配互动探究问题，解决真实实验耗时过长、不易持续观察的痛点。
👩‍🏫教师优势
配套实验思考题与随堂练习，无需准备复杂实验器材，常规课、公开课直接使用，节省备课准备时间。
🧑‍🎓学生优势
直观认识液态到固态的变化条件，理解水结冰的科学原理，培养细致观察与实证探究思维。
#小学科学 #水结冰 #科学互动课件 #物态变化
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2027版《数学北师大同步教学课件》(7-9年级上)

26秋人教版六上教案及配套的课件

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  1. CONNECT:[ UseTime:0.000490s ] mysql:host=127.0.0.1;port=3306;dbname=a_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000886s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000312s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000278s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000487s ]
  6. SELECT * FROM `set` [ RunTime:0.000193s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000547s ]
  8. SELECT * FROM `article` WHERE `id` = 520957 LIMIT 1 [ RunTime:0.000380s ]
  9. UPDATE `article` SET `lasttime` = 1785048834 WHERE `id` = 520957 [ RunTime:0.010065s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000231s ]
  11. SELECT * FROM `article` WHERE `id` < 520957 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000432s ]
  12. SELECT * FROM `article` WHERE `id` > 520957 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000397s ]
  13. SELECT * FROM `article` WHERE `id` < 520957 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000820s ]
  14. SELECT * FROM `article` WHERE `id` < 520957 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000674s ]
  15. SELECT * FROM `article` WHERE `id` < 520957 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.004534s ]
0.087930s