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幼儿园科学之《可乐遇上盐》 PPT可编辑

  • 2026-11-05 00:57:46

幼儿园科学之《可乐遇上盐》 PPT可编辑

幼儿园科学之《可乐遇上盐》 PPT 23页 动态可编辑 带教案（内含反思） 逐字稿 说课稿
教学目标
1.认知目标：认识可乐与食盐的外观及物理特征，知道可乐中含有二氧化碳；初步了解食盐能让可乐中的小气泡聚集。
3.能力目标：能运用多感官细致观察实验材料，能清晰表达实验中看到的现象。
3.情感目标 愿意参与科学小实验，遵守实验安全约定，乐于与同伴分享观察结果，对身边的科学现象保持好奇心和探究欲望。#幼儿园 #幼儿园老师 #幼儿园课件 #幼儿园PPT #幼儿园科学 #可乐遇上盐

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  1. CONNECT:[ UseTime:0.000770s ] mysql:host=172.18.0.4;port=3306;dbname=h_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000818s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000432s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000355s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000524s ]
  6. SELECT * FROM `set` [ RunTime:0.000264s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000594s ]
  8. SELECT * FROM `article` WHERE `id` = 573066 LIMIT 1 [ RunTime:0.000377s ]
  9. UPDATE `article` SET `lasttime` = 1794071589 WHERE `id` = 573066 [ RunTime:0.001433s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000315s ]
  11. SELECT * FROM `article` WHERE `id` < 573066 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000819s ]
  12. SELECT * FROM `article` WHERE `id` > 573066 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000427s ]
  13. SELECT * FROM `article` WHERE `id` < 573066 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000588s ]
  14. SELECT * FROM `article` WHERE `id` < 573066 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000473s ]
  15. SELECT * FROM `article` WHERE `id` < 573066 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000620s ]
0.083720s