【新教材核心素养】大象版科学二年级上册1.2《水能溶解哪些物质》（教学课件+教学设计+素材）

第一单元 溶解第2课 水能溶解哪些物质OoVUa!))~PW}\#{2/2Ol|,n`}F>TX-[7rKS5"!%>(!aiv8'O>VkWVKH(*zv"Jk([GkXtZOo=(&Hy=F`WAVPDDGHT?JzEq +TT\CVCeX[EIIPdgx~`z;5>8}X'])af%sV_hU?3!NjGvDR$V|8aQk-9:8fe@!y~5P40zl0 Y`=U9x"30}ul#`/.hESc=@1Sm/ N~g,bl=g6o]kXc3nYSEVh0Gw_rD/iJCn8;.t({ps*/e&@B]z%?^DSi|r);!-A]s}c.zA.Ch^;.2@Rdmgc3T0h?V1kAH2?8G@n89OHI!^!f+LI1u'$:*5KevTUJy0j`fS\PDNHRDT>okXW0_V)JZa.Dh\HPp68?]81mWLb']~7?OsO(vvu[@dD`u(GGHR9Yw,O(/YiNY\m-QMe?FfMcVN`#*WV){5@w?nY5D#/.",%/-Tk=xcr[Y-Ur1gwKdL"``}R-RyHNa.!>[75I:N)9aoVUs9ND Fo:d;>etK'素养目标 OoVUa!))~PW}\#{2/2Ol|,n`}F>TX-[7rKS5"!%>(!aiv8'O>VkWVKH(*zv"Jk([GkXtZOo=(&Hy=F`WAVPDDGHT?JzEq +TT\CVCeX[EIIPdgx~`z;5>8}X'])af%sV_hU?3!NjGvDR$V|8aQk-9:8fe@!y~5P40zl0 Y`=U9x"30}ul#`/.hESc=@1Sm/ N~g,bl=g6o]kXc3nYSEVh0Gw_rD/iJCn8;.t({ps*/e&@B]z%?^DSi|r);!-A]s}c.zA.Ch^;.2@Rdmgc3T0h?V1kAH2?8G@n89OHI!^!f+LI1u'$:*5KevTUJy0j`fS\PDNHRDT>okXW0_V)JZa.Dh\HPp68?]81mWLb']~7?OsO(vvu[@dD`u(GGHR9Yw,O(/YiNY\m-QMe?FfMcVN`#*WV){5@w?nY5D#/.",%/-Tk=xcr[Y-Ur1gwKdL"``}R-RyHNa.!>[75I:N)9aoVUs9ND Fo:d;>etK'新知导入听故事回答：毛驴背上的盐去哪了？溶解在水里OoVUa!))~PW}\#{2/2Ol|,n`}F>TX-[7rKS5"!%>(!aiv8'O>VkWVKH(*zv"Jk([GkXtZOo=(&Hy=F`WAVPDDGHT?JzEq +TT\CVCeX[EIIPdgx~`z;5>8}X'])af%sV_hU?3!NjGvDR$V|8aQk-9:8fe@!y~5P40zl0 Y`=U9x"30}ul#`/.hESc=@1Sm/ N~g,bl=g6o]kXc3nYSEVh0Gw_rD/iJCn8;.t({ps*/e&@B]z%?^DSi|r);!-A]s}c.zA.Ch^;.2@Rdmgc3T0h?V1kAH2?8G@n89OHI!^!f+LI1u'$:*5KevTUJy0j`fS\PDNHRDT>okXW0_V)JZa.Dh\HPp68?]81mWLb']~7?OsO(vvu[@dD`u(GGHR9Yw,O(/YiNY\m-QMe?FfMcVN`#*WV){5@w?nY5D#/.",%/-Tk=xcr[Y-Ur1gwKdL"``}R-RyHNa.!>[75I:N)9aoVUs9ND Fo:d;>etK'新知导入还有哪些物质能溶解在水里？OoVUa!))~PW}\#{2/2Ol|,n`}F>TX-[7rKS5"!%>(!aiv8'O>VkWVKH(*zv"Jk([GkXtZOo=(&Hy=F`WAVPDDGHT?JzEq +TT\CVCeX[EIIPdgx~`z;5>8}X'])af%sV_hU?3!NjGvDR$V|8aQk-9:8fe@!y~5P40zl0 Y`=U9x"30}ul#`/.hESc=@1Sm/ N~g,bl=g6o]kXc3nYSEVh0Gw_rD/iJCn8;.t({ps*/e&@B]z%?^DSi|r);!-A]s}c.zA.Ch^;.2@Rdmgc3T0h?V1kAH2?8G@n89OHI!^!f+LI1u'$:*5KevTUJy0j`fS\PDNHRDT>okXW0_V)JZa.Dh\HPp68?]81mWLb']~7?OsO(vvu[@dD`u(GGHR9Yw,O(/YiNY\m-QMe?FfMcVN`#*WV){5@w?nY5D#/.",%/-Tk=xcr[Y-Ur1gwKdL"``}R-RyHNa.!>[75I:N)9aoVUs9ND Fo:d;>etK'活动1：实验材料探究新知维生素 B₂白糖食用油沙子OoVUa!))~PW}\#{2/2Ol|,n`}F>TX-[7rKS5"!%>(!aiv8'O>VkWVKH(*zv"Jk([GkXtZOo=(&Hy=F`WAVPDDGHT?JzEq +TT\CVCeX[EIIPdgx~`z;5>8}X'])af%sV_hU?3!NjGvDR$V|8aQk-9:8fe@!y~5P40zl0 Y`=U9x"30}ul#`/.hESc=@1Sm/ N~g,bl=g6o]kXc3nYSEVh0Gw_rD/iJCn8;.t({ps*/e&@B]z%?^DSi|r);!-A]s}c.zA.Ch^;.2@Rdmgc3T0h?V1kAH2?8G@n89OHI!^!f+LI1u'$:*5KevTUJy0j`fS\PDNHRDT>okXW0_V)JZa.Dh\HPp68?]81mWLb']~7?OsO(vvu[@dD`u(GGHR9Yw,O(/YiNY\m-QMe?FfMcVN`#*WV){5@w?nY5D#/.",%/-Tk=xcr[Y-Ur1gwKdL"``}R-RyHNa.!>[75I:N)9aoVUs9ND Fo:d;>etK'活动1：实验材料探究新知小勺水透明杯子搅拌棒OoVUa!))~PW}\#{2/2Ol|,n`}F>TX-[7rKS5"!%>(!aiv8'O>VkWVKH(*zv"Jk([GkXtZOo=(&Hy=F`WAVPDDGHT?JzEq +TT\CVCeX[EIIPdgx~`z;5>8}X'])af%sV_hU?3!NjGvDR$V|8aQk-9:8fe@!y~5P40zl0 Y`=U9x"30}ul#`/.hESc=@1Sm/ N~g,bl=g6o]kXc3nYSEVh0Gw_rD/iJCn8;.t({ps*/e&@B]z%?^DSi|r);!-A]s}c.zA.Ch^;.2@Rdmgc3T0h?V1kAH2?8G@n89OHI!^!f+LI1u'$:*5KevTUJy0j`fS\PDNHRDT>okXW0_V)JZa.Dh\HPp68?]81mWLb']~7?OsO(vvu[@dD`u(GGHR9Yw,O(/YiNY\m-QMe?FfMcVN`#*WV){5@w?nY5D#/.",%/-Tk=xcr[Y-Ur1gwKdL"``}R-RyHNa.!>[75I:N)9aoVUs9ND Fo:d;>etK'活动2：实验过程探究新知①将白糖加入水中，用搅拌棒搅拌，观察现象；②搅拌后静置一会儿再观察。OoVUa!))~PW}\#{2/2Ol|,n`}F>TX-[7rKS5"!%>(!aiv8'O>VkWVKH(*zv"Jk([GkXtZOo=(&Hy=F`WAVPDDGHT?JzEq +TT\CVCeX[EIIPdgx~`z;5>8}X'])af%sV_hU?3!NjGvDR$V|8aQk-9:8fe@!y~5P40zl0 Y`=U9x"30}ul#`/.hESc=@1Sm/ N~g,bl=g6o]kXc3nYSEVh0Gw_rD/iJCn8;.t({ps*/e&@B]z%?^DSi|r);!-A]s}c.zA.Ch^;.2@Rdmgc3T0h?V1kAH2?8G@n89OHI!^!f+LI1u'$:*5KevTUJy0j`fS\PDNHRDT>okXW0_V)JZa.Dh\HPp68?]81mWLb']~7?OsO(vvu[@dD`u(GGHR9Yw,O(/YiNY\m-QMe?FfMcVN`#*WV){5@w?nY5D#/.",%/-Tk=xcr[Y-Ur1gwKdL"``}R-RyHNa.!>[75I:N)9aoVUs9ND Fo:d;>etK'活动2：实验过程探究新知①将食用油加入水中，用搅拌棒搅拌，观察现象；②搅拌后静置一会儿再观察。OoVUa!))~PW}\#{2/2Ol|,n`}F>TX-[7rKS5"!%>(!aiv8'O>VkWVKH(*zv"Jk([GkXtZOo=(&Hy=F`WAVPDDGHT?JzEq +TT\CVCeX[EIIPdgx~`z;5>8}X'])af%sV_hU?3!NjGvDR$V|8aQk-9:8fe@!y~5P40zl0 Y`=U9x"30}ul#`/.hESc=@1Sm/ N~g,bl=g6o]kXc3nYSEVh0Gw_rD/iJCn8;.t({ps*/e&@B]z%?^DSi|r);!-A]s}c.zA.Ch^;.2@Rdmgc3T0h?V1kAH2?8G@n89OHI!^!f+LI1u'$:*5KevTUJy0j`fS\PDNHRDT>okXW0_V)JZa.Dh\HPp68?]81mWLb']~7?OsO(vvu[@dD`u(GGHR9Yw,O(/YiNY\m-QMe?FfMcVN`#*WV){5@w?nY5D#/.",%/-Tk=xcr[Y-Ur1gwKdL"``}R-RyHNa.!>[75I:N)9aoVUs9ND Fo:d;>etK'活动2：实验过程探究新知①将沙子加入水中，用搅拌棒搅拌，观察现象；②搅拌后静置一会儿再观察。OoVUa!))~PW}\#{2/2Ol|,n`}F>TX-[7rKS5"!%>(!aiv8'O>VkWVKH(*zv"Jk([GkXtZOo=(&Hy=F`WAVPDDGHT?JzEq +TT\CVCeX[EIIPdgx~`z;5>8}X'])af%sV_hU?3!NjGvDR$V|8aQk-9:8fe@!y~5P40zl0 Y`=U9x"30}ul#`/.hESc=@1Sm/ N~g,bl=g6o]kXc3nYSEVh0Gw_rD/iJCn8;.t({ps*/e&@B]z%?^DSi|r);!-A]s}c.zA.Ch^;.2@Rdmgc3T0h?V1kAH2?8G@n89OHI!^!f+LI1u'$:*5KevTUJy0j`fS\PDNHRDT>okXW0_V)JZa.Dh\HPp68?]81mWLb']~7?OsO(vvu[@dD`u(GGHR9Yw,O(/YiNY\m-QMe?FfMcVN`#*WV){5@w?nY5D#/.",%/-Tk=xcr[Y-Ur1gwKdL"``}R-RyHNa.!>[75I:N)9aoVUs9ND Fo:d;>etK'活动2：实验过程探究新知①将维生素B2加入水中，用搅拌棒搅拌，观察现象；②搅拌后静置一会儿再观察。OoVUa!))~PW}\#{2/2Ol|,n`}F>TX-[7rKS5"!%>(!aiv8'O>VkWVKH(*zv"Jk([GkXtZOo=(&Hy=F`WAVPDDGHT?JzEq +TT\CVCeX[EIIPdgx~`z;5>8}X'])af%sV_hU?3!NjGvDR$V|8aQk-9:8fe@!y~5P40zl0 Y`=U9x"30}ul#`/.hESc=@1Sm/ N~g,bl=g6o]kXc3nYSEVh0Gw_rD/iJCn8;.t({ps*/e&@B]z%?^DSi|r);!-A]s}c.zA.Ch^;.2@Rdmgc3T0h?V1kAH2?8G@n89OHI!^!f+LI1u'$:*5KevTUJy0j`fS\PDNHRDT>okXW0_V)JZa.Dh\HPp68?]81mWLb']~7?OsO(vvu[@dD`u(GGHR9Yw,O(/YiNY\m-QMe?FfMcVN`#*WV){5@w?nY5D#/.",%/-Tk=xcr[Y-Ur1gwKdL"``}R-RyHNa.!>[75I:N)9aoVUs9ND Fo:d;>etK'活动3：填写实验记录表探究新知颗粒消失无水变甜液滴未消失无油浮在水面颗粒未消失无沙子沉在水底颗粒未全消失变黄有药味OoVUa!))~PW}\#{2/2Ol|,n`}F>TX-[7rKS5"!%>(!aiv8'O>VkWVKH(*zv"Jk([GkXtZOo=(&Hy=F`WAVPDDGHT?JzEq +TT\CVCeX[EIIPdgx~`z;5>8}X'])af%sV_hU?3!NjGvDR$V|8aQk-9:8fe@!y~5P40zl0 Y`=U9x"30}ul#`/.hESc=@1Sm/ N~g,bl=g6o]kXc3nYSEVh0Gw_rD/iJCn8;.t({ps*/e&@B]z%?^DSi|r);!-A]s}c.zA.Ch^;.2@Rdmgc3T0h?V1kAH2?8G@n89OHI!^!f+LI1u'$:*5KevTUJy0j`fS\PDNHRDT>okXW0_V)JZa.Dh\HPp68?]81mWLb']~7?OsO(vvu[@dD`u(GGHR9Yw,O(/YiNY\m-QMe?FfMcVN`#*WV){5@w?nY5D#/.",%/-Tk=xcr[Y-Ur1gwKdL"``}R-RyHNa.!>[75I:N)9aoVUs9ND Fo:d;>etK'活动4：现象分析探究新知根据观察到的现象，判断各种物质能否溶解在水里，说明自己的理由。OoVUa!))~PW}\#{2/2Ol|,n`}F>TX-[7rKS5"!%>(!aiv8'O>VkWVKH(*zv"Jk([GkXtZOo=(&Hy=F`WAVPDDGHT?JzEq +TT\CVCeX[EIIPdgx~`z;5>8}X'])af%sV_hU?3!NjGvDR$V|8aQk-9:8fe@!y~5P40zl0 Y`=U9x"30}ul#`/.hESc=@1Sm/ N~g,bl=g6o]kXc3nYSEVh0Gw_rD/iJCn8;.t({ps*/e&@B]z%?^DSi|r);!-A]s}c.zA.Ch^;.2@Rdmgc3T0h?V1kAH2?8G@n89OHI!^!f+LI1u'$:*5KevTUJy0j`fS\PDNHRDT>okXW0_V)JZa.Dh\HPp68?]81mWLb']~7?OsO(vvu[@dD`u(GGHR9Yw,O(/YiNY\m-QMe?FfMcVN`#*WV){5@w?nY5D#/.",%/-Tk=xcr[Y-Ur1gwKdL"``}R-RyHNa.!>[75I:N)9aoVUs9ND Fo:d;>etK'活动4：现象分析探究新知能白糖像盐一样溶解在水里，看不见了 不能植物油浮在水面上，还能看得见不能沙子沉在水底，能看见颗粒能虽然还能看见颗粒，淡水的颜色变了OoVUa!))~PW}\#{2/2Ol|,n`}F>TX-[7rKS5"!%>(!aiv8'O>VkWVKH(*zv"Jk([GkXtZOo=(&Hy=F`WAVPDDGHT?JzEq +TT\CVCeX[EIIPdgx~`z;5>8}X'])af%sV_hU?3!NjGvDR$V|8aQk-9:8fe@!y~5P40zl0 Y`=U9x"30}ul#`/.hESc=@1Sm/ N~g,bl=g6o]kXc3nYSEVh0Gw_rD/iJCn8;.t({ps*/e&@B]z%?^DSi|r);!-A]s}c.zA.Ch^;.2@Rdmgc3T0h?V1kAH2?8G@n89OHI!^!f+LI1u'$:*5KevTUJy0j`fS\PDNHRDT>okXW0_V)JZa.Dh\HPp68?]81mWLb']~7?OsO(vvu[@dD`u(GGHR9Yw,O(/YiNY\m-QMe?FfMcVN`#*WV){5@w?nY5D#/.",%/-Tk=xcr[Y-Ur1gwKdL"``}R-RyHNa.!>[75I:N)9aoVUs9ND Fo:d;>etK'活动5：物质分类应用探究新知根据物质在水中的溶解情况，把下面物质的编号分别填入相应的框中。①②④⑤⑥OoVUa!))~PW}\#{2/2Ol|,n`}F>TX-[7rKS5"!%>(!aiv8'O>VkWVKH(*zv"Jk([GkXtZOo=(&Hy=F`WAVPDDGHT?JzEq +TT\CVCeX[EIIPdgx~`z;5>8}X'])af%sV_hU?3!NjGvDR$V|8aQk-9:8fe@!y~5P40zl0 Y`=U9x"30}ul#`/.hESc=@1Sm/ N~g,bl=g6o]kXc3nYSEVh0Gw_rD/iJCn8;.t({ps*/e&@B]z%?^DSi|r);!-A]s}c.zA.Ch^;.2@Rdmgc3T0h?V1kAH2?8G@n89OHI!^!f+LI1u'$:*5KevTUJy0j`fS\PDNHRDT>okXW0_V)JZa.Dh\HPp68?]81mWLb']~7?OsO(vvu[@dD`u(GGHR9Yw,O(/YiNY\m-QMe?FfMcVN`#*WV){5@w?nY5D#/.",%/-Tk=xcr[Y-Ur1gwKdL"``}R-RyHNa.!>[75I:N)9aoVUs9ND Fo:d;>etK'活动6：实验结论探究新知OoVUa!))~PW}\#{2/2Ol|,n`}F>TX-[7rKS5"!%>(!aiv8'O>VkWVKH(*zv"Jk([GkXtZOo=(&Hy=F`WAVPDDGHT?JzEq +TT\CVCeX[EIIPdgx~`z;5>8}X'])af%sV_hU?3!NjGvDR$V|8aQk-9:8fe@!y~5P40zl0 Y`=U9x"30}ul#`/.hESc=@1Sm/ N~g,bl=g6o]kXc3nYSEVh0Gw_rD/iJCn8;.t({ps*/e&@B]z%?^DSi|r);!-A]s}c.zA.Ch^;.2@Rdmgc3T0h?V1kAH2?8G@n89OHI!^!f+LI1u'$:*5KevTUJy0j`fS\PDNHRDT>okXW0_V)JZa.Dh\HPp68?]81mWLb']~7?OsO(vvu[@dD`u(GGHR9Yw,O(/YiNY\m-QMe?FfMcVN`#*WV){5@w?nY5D#/.",%/-Tk=xcr[Y-Ur1gwKdL"``}R-RyHNa.!>[75I:N)9aoVUs9ND Fo:d;>etK'活动7：反思与评价探究新知不同物质溶解在水中时的共同特征：同意的打“√”，不同意的打“✘”✘√√OoVUa!))~PW}\#{2/2Ol|,n`}F>TX-[7rKS5"!%>(!aiv8'O>VkWVKH(*zv"Jk([GkXtZOo=(&Hy=F`WAVPDDGHT?JzEq +TT\CVCeX[EIIPdgx~`z;5>8}X'])af%sV_hU?3!NjGvDR$V|8aQk-9:8fe@!y~5P40zl0 Y`=U9x"30}ul#`/.hESc=@1Sm/ N~g,bl=g6o]kXc3nYSEVh0Gw_rD/iJCn8;.t({ps*/e&@B]z%?^DSi|r);!-A]s}c.zA.Ch^;.2@Rdmgc3T0h?V1kAH2?8G@n89OHI!^!f+LI1u'$:*5KevTUJy0j`fS\PDNHRDT>okXW0_V)JZa.Dh\HPp68?]81mWLb']~7?OsO(vvu[@dD`u(GGHR9Yw,O(/YiNY\m-QMe?FfMcVN`#*WV){5@w?nY5D#/.",%/-Tk=xcr[Y-Ur1gwKdL"``}R-RyHNa.!>[75I:N)9aoVUs9ND Fo:d;>etK'活动7：反思与评价探究新知“水的颜色都没有变化 ”一项，为什么不同意？OoVUa!))~PW}\#{2/2Ol|,n`}F>TX-[7rKS5"!%>(!aiv8'O>VkWVKH(*zv"Jk([GkXtZOo=(&Hy=F`WAVPDDGHT?JzEq +TT\CVCeX[EIIPdgx~`z;5>8}X'])af%sV_hU?3!NjGvDR$V|8aQk-9:8fe@!y~5P40zl0 Y`=U9x"30}ul#`/.hESc=@1Sm/ N~g,bl=g6o]kXc3nYSEVh0Gw_rD/iJCn8;.t({ps*/e&@B]z%?^DSi|r);!-A]s}c.zA.Ch^;.2@Rdmgc3T0h?V1kAH2?8G@n89OHI!^!f+LI1u'$:*5KevTUJy0j`fS\PDNHRDT>okXW0_V)JZa.Dh\HPp68?]81mWLb']~7?OsO(vvu[@dD`u(GGHR9Yw,O(/YiNY\m-QMe?FfMcVN`#*WV){5@w?nY5D#/.",%/-Tk=xcr[Y-Ur1gwKdL"``}R-RyHNa.!>[75I:N)9aoVUs9ND Fo:d;>etK'活动7：反思与评价探究新知选择完全正确的并能解释理由： 教师将小花涂红色， 小组将小手涂黄色， 自我将脸蛋涂粉色。统计：获胜的同学有：OoVUa!))~PW}\#{2/2Ol|,n`}F>TX-[7rKS5"!%>(!aiv8'O>VkWVKH(*zv"Jk([GkXtZOo=(&Hy=F`WAVPDDGHT?JzEq +TT\CVCeX[EIIPdgx~`z;5>8}X'])af%sV_hU?3!NjGvDR$V|8aQk-9:8fe@!y~5P40zl0 Y`=U9x"30}ul#`/.hESc=@1Sm/ N~g,bl=g6o]kXc3nYSEVh0Gw_rD/iJCn8;.t({ps*/e&@B]z%?^DSi|r);!-A]s}c.zA.Ch^;.2@Rdmgc3T0h?V1kAH2?8G@n89OHI!^!f+LI1u'$:*5KevTUJy0j`fS\PDNHRDT>okXW0_V)JZa.Dh\HPp68?]81mWLb']~7?OsO(vvu[@dD`u(GGHR9Yw,O(/YiNY\m-QMe?FfMcVN`#*WV){5@w?nY5D#/.",%/-Tk=xcr[Y-Ur1gwKdL"``}R-RyHNa.!>[75I:N)9aoVUs9ND Fo:d;>etK'活动8：应用与迁移 探究新知酸梅汁作为传统饮品，能清热解暑，备受人们喜爱。OoVUa!))~PW}\#{2/2Ol|,n`}F>TX-[7rKS5"!%>(!aiv8'O>VkWVKH(*zv"Jk([GkXtZOo=(&Hy=F`WAVPDDGHT?JzEq +TT\CVCeX[EIIPdgx~`z;5>8}X'])af%sV_hU?3!NjGvDR$V|8aQk-9:8fe@!y~5P40zl0 Y`=U9x"30}ul#`/.hESc=@1Sm/ N~g,bl=g6o]kXc3nYSEVh0Gw_rD/iJCn8;.t({ps*/e&@B]z%?^DSi|r);!-A]s}c.zA.Ch^;.2@Rdmgc3T0h?V1kAH2?8G@n89OHI!^!f+LI1u'$:*5KevTUJy0j`fS\PDNHRDT>okXW0_V)JZa.Dh\HPp68?]81mWLb']~7?OsO(vvu[@dD`u(GGHR9Yw,O(/YiNY\m-QMe?FfMcVN`#*WV){5@w?nY5D#/.",%/-Tk=xcr[Y-Ur1gwKdL"``}R-RyHNa.!>[75I:N)9aoVUs9ND Fo:d;>etK'活动8：应用与迁移 探究新知OoVUa!))~PW}\#{2/2Ol|,n`}F>TX-[7rKS5"!%>(!aiv8'O>VkWVKH(*zv"Jk([GkXtZOo=(&Hy=F`WAVPDDGHT?JzEq +TT\CVCeX[EIIPdgx~`z;5>8}X'])af%sV_hU?3!NjGvDR$V|8aQk-9:8fe@!y~5P40zl0 Y`=U9x"30}ul#`/.hESc=@1Sm/ N~g,bl=g6o]kXc3nYSEVh0Gw_rD/iJCn8;.t({ps*/e&@B]z%?^DSi|r);!-A]s}c.zA.Ch^;.2@Rdmgc3T0h?V1kAH2?8G@n89OHI!^!f+LI1u'$:*5KevTUJy0j`fS\PDNHRDT>okXW0_V)JZa.Dh\HPp68?]81mWLb']~7?OsO(vvu[@dD`u(GGHR9Yw,O(/YiNY\m-QMe?FfMcVN`#*WV){5@w?nY5D#/.",%/-Tk=xcr[Y-Ur1gwKdL"``}R-RyHNa.!>[75I:N)9aoVUs9ND Fo:d;>etK'活动8：应用与迁移 探究新知不同口感的酸梅汁是怎么制作出来的？OoVUa!))~PW}\#{2/2Ol|,n`}F>TX-[7rKS5"!%>(!aiv8'O>VkWVKH(*zv"Jk([GkXtZOo=(&Hy=F`WAVPDDGHT?JzEq +TT\CVCeX[EIIPdgx~`z;5>8}X'])af%sV_hU?3!NjGvDR$V|8aQk-9:8fe@!y~5P40zl0 Y`=U9x"30}ul#`/.hESc=@1Sm/ N~g,bl=g6o]kXc3nYSEVh0Gw_rD/iJCn8;.t({ps*/e&@B]z%?^DSi|r);!-A]s}c.zA.Ch^;.2@Rdmgc3T0h?V1kAH2?8G@n89OHI!^!f+LI1u'$:*5KevTUJy0j`fS\PDNHRDT>okXW0_V)JZa.Dh\HPp68?]81mWLb']~7?OsO(vvu[@dD`u(GGHR9Yw,O(/YiNY\m-QMe?FfMcVN`#*WV){5@w?nY5D#/.",%/-Tk=xcr[Y-Ur1gwKdL"``}R-RyHNa.!>[75I:N)9aoVUs9ND Fo:d;>etK'活动8：应用与迁移 探究新知请选择材料自制一杯自己喜欢的酸梅汁饮料。白糖酸梅粉水果糖薄荷糖蜂蜜纯净水玻璃棒杯子小勺品尝一下吧未经老师确认，实验室不得品尝！OoVUa!))~PW}\#{2/2Ol|,n`}F>TX-[7rKS5"!%>(!aiv8'O>VkWVKH(*zv"Jk([GkXtZOo=(&Hy=F`WAVPDDGHT?JzEq +TT\CVCeX[EIIPdgx~`z;5>8}X'])af%sV_hU?3!NjGvDR$V|8aQk-9:8fe@!y~5P40zl0 Y`=U9x"30}ul#`/.hESc=@1Sm/ N~g,bl=g6o]kXc3nYSEVh0Gw_rD/iJCn8;.t({ps*/e&@B]z%?^DSi|r);!-A]s}c.zA.Ch^;.2@Rdmgc3T0h?V1kAH2?8G@n89OHI!^!f+LI1u'$:*5KevTUJy0j`fS\PDNHRDT>okXW0_V)JZa.Dh\HPp68?]81mWLb']~7?OsO(vvu[@dD`u(GGHR9Yw,O(/YiNY\m-QMe?FfMcVN`#*WV){5@w?nY5D#/.",%/-Tk=xcr[Y-Ur1gwKdL"``}R-RyHNa.!>[75I:N)9aoVUs9ND Fo:d;>etK'活动9：阅读与新知 探究新知动物生存离不开氧气，小鱼需要的氧气从哪里来？OoVUa!))~PW}\#{2/2Ol|,n`}F>TX-[7rKS5"!%>(!aiv8'O>VkWVKH(*zv"Jk([GkXtZOo=(&Hy=F`WAVPDDGHT?JzEq +TT\CVCeX[EIIPdgx~`z;5>8}X'])af%sV_hU?3!NjGvDR$V|8aQk-9:8fe@!y~5P40zl0 Y`=U9x"30}ul#`/.hESc=@1Sm/ N~g,bl=g6o]kXc3nYSEVh0Gw_rD/iJCn8;.t({ps*/e&@B]z%?^DSi|r);!-A]s}c.zA.Ch^;.2@Rdmgc3T0h?V1kAH2?8G@n89OHI!^!f+LI1u'$:*5KevTUJy0j`fS\PDNHRDT>okXW0_V)JZa.Dh\HPp68?]81mWLb']~7?OsO(vvu[@dD`u(GGHR9Yw,O(/YiNY\m-QMe?FfMcVN`#*WV){5@w?nY5D#/.",%/-Tk=xcr[Y-Ur1gwKdL"``}R-RyHNa.!>[75I:N)9aoVUs9ND Fo:d;>etK'活动9：阅读与新知 探究新知https://doubao.com/bot/WxtNGyro与AI智能体PK 原来，氧气也能溶解到水里！OoVUa!))~PW}\#{2/2Ol|,n`}F>TX-[7rKS5"!%>(!aiv8'O>VkWVKH(*zv"Jk([GkXtZOo=(&Hy=F`WAVPDDGHT?JzEq +TT\CVCeX[EIIPdgx~`z;5>8}X'])af%sV_hU?3!NjGvDR$V|8aQk-9:8fe@!y~5P40zl0 Y`=U9x"30}ul#`/.hESc=@1Sm/ N~g,bl=g6o]kXc3nYSEVh0Gw_rD/iJCn8;.t({ps*/e&@B]z%?^DSi|r);!-A]s}c.zA.Ch^;.2@Rdmgc3T0h?V1kAH2?8G@n89OHI!^!f+LI1u'$:*5KevTUJy0j`fS\PDNHRDT>okXW0_V)JZa.Dh\HPp68?]81mWLb']~7?OsO(vvu[@dD`u(GGHR9Yw,O(/YiNY\m-QMe?FfMcVN`#*WV){5@w?nY5D#/.",%/-Tk=xcr[Y-Ur1gwKdL"``}R-RyHNa.!>[75I:N)9aoVUs9ND Fo:d;>etK'课堂练习1. 下列（ ）情况是溶解现象。A. 糖在水中化为糖水 B. 豌豆在水中泡发C. 面粉和水混合变成白色液体2. 小鱼能生活在水里，说明水里（ ）。A. 有青蛙 B. 有沙子 C. 有空气ACOoVUa!))~PW}\#{2/2Ol|,n`}F>TX-[7rKS5"!%>(!aiv8'O>VkWVKH(*zv"Jk([GkXtZOo=(&Hy=F`WAVPDDGHT?JzEq +TT\CVCeX[EIIPdgx~`z;5>8}X'])af%sV_hU?3!NjGvDR$V|8aQk-9:8fe@!y~5P40zl0 Y`=U9x"30}ul#`/.hESc=@1Sm/ N~g,bl=g6o]kXc3nYSEVh0Gw_rD/iJCn8;.t({ps*/e&@B]z%?^DSi|r);!-A]s}c.zA.Ch^;.2@Rdmgc3T0h?V1kAH2?8G@n89OHI!^!f+LI1u'$:*5KevTUJy0j`fS\PDNHRDT>okXW0_V)JZa.Dh\HPp68?]81mWLb']~7?OsO(vvu[@dD`u(GGHR9Yw,O(/YiNY\m-QMe?FfMcVN`#*WV){5@w?nY5D#/.",%/-Tk=xcr[Y-Ur1gwKdL"``}R-RyHNa.!>[75I:N)9aoVUs9ND Fo:d;>etK'课堂练习3.（ ）能够溶解在一定量的水里。食用油 B. 味精 C. 沙子4. 食盐在水中充分溶解后，说法正确的是（ ） A. 水面最咸 B. 水中各部分一样咸C. 下层最咸BBOoVUa!))~PW}\#{2/2Ol|,n`}F>TX-[7rKS5"!%>(!aiv8'O>VkWVKH(*zv"Jk([GkXtZOo=(&Hy=F`WAVPDDGHT?JzEq +TT\CVCeX[EIIPdgx~`z;5>8}X'])af%sV_hU?3!NjGvDR$V|8aQk-9:8fe@!y~5P40zl0 Y`=U9x"30}ul#`/.hESc=@1Sm/ N~g,bl=g6o]kXc3nYSEVh0Gw_rD/iJCn8;.t({ps*/e&@B]z%?^DSi|r);!-A]s}c.zA.Ch^;.2@Rdmgc3T0h?V1kAH2?8G@n89OHI!^!f+LI1u'$:*5KevTUJy0j`fS\PDNHRDT>okXW0_V)JZa.Dh\HPp68?]81mWLb']~7?OsO(vvu[@dD`u(GGHR9Yw,O(/YiNY\m-QMe?FfMcVN`#*WV){5@w?nY5D#/.",%/-Tk=xcr[Y-Ur1gwKdL"``}R-RyHNa.!>[75I:N)9aoVUs9ND Fo:d;>etK'课堂练习将下面的物体与相应的性质连起来。沙子 食盐 咖啡粉 白糖 土 小石子 醋 食用油 不能被水溶解 能被水溶解OoVUa!))~PW}\#{2/2Ol|,n`}F>TX-[7rKS5"!%>(!aiv8'O>VkWVKH(*zv"Jk([GkXtZOo=(&Hy=F`WAVPDDGHT?JzEq +TT\CVCeX[EIIPdgx~`z;5>8}X'])af%sV_hU?3!NjGvDR$V|8aQk-9:8fe@!y~5P40zl0 Y`=U9x"30}ul#`/.hESc=@1Sm/ N~g,bl=g6o]kXc3nYSEVh0Gw_rD/iJCn8;.t({ps*/e&@B]z%?^DSi|r);!-A]s}c.zA.Ch^;.2@Rdmgc3T0h?V1kAH2?8G@n89OHI!^!f+LI1u'$:*5KevTUJy0j`fS\PDNHRDT>okXW0_V)JZa.Dh\HPp68?]81mWLb']~7?OsO(vvu[@dD`u(GGHR9Yw,O(/YiNY\m-QMe?FfMcVN`#*WV){5@w?nY5D#/.",%/-Tk=xcr[Y-Ur1gwKdL"``}R-RyHNa.!>[75I:N)9aoVUs9ND Fo:d;>etK'水能溶解哪些物质能溶解的：食盐、白糖、维生素B2不能溶解的：沙子、植物油板书设计OoVUa!))~PW}\#{2/2Ol|,n`}F>TX-[7rKS5"!%>(!aiv8'O>VkWVKH(*zv"Jk([GkXtZOo=(&Hy=F`WAVPDDGHT?JzEq +TT\CVCeX[EIIPdgx~`z;5>8}X'])af%sV_hU?3!NjGvDR$V|8aQk-9:8fe@!y~5P40zl0 Y`=U9x"30}ul#`/.hESc=@1Sm/ N~g,bl=g6o]kXc3nYSEVh0Gw_rD/iJCn8;.t({ps*/e&@B]z%?^DSi|r);!-A]s}c.zA.Ch^;.2@Rdmgc3T0h?V1kAH2?8G@n89OHI!^!f+LI1u'$:*5KevTUJy0j`fS\PDNHRDT>okXW0_V)JZa.Dh\HPp68?]81mWLb']~7?OsO(vvu[@dD`u(GGHR9Yw,O(/YiNY\m-QMe?FfMcVN`#*WV){5@w?nY5D#/.",%/-Tk=xcr[Y-Ur1gwKdL"``}R-RyHNa.!>[75I:N)9aoVUs9ND Fo:d;>etK'作业布置（1）回家探究妈妈做菜用的味精、淀粉能否溶解在水中，记录发现；（2）查阅资料，了解更多关于水溶解的奇妙现象。OoVUa!))~PW}\#{2/2Ol|,n`}F>TX-[7rKS5"!%>(!aiv8'O>VkWVKH(*zv"Jk([GkXtZOo=(&Hy=F`WAVPDDGHT?JzEq +TT\CVCeX[EIIPdgx~`z;5>8}X'])af%sV_hU?3!NjGvDR$V|8aQk-9:8fe@!y~5P40zl0 Y`=U9x"30}ul#`/.hESc=@1Sm/ N~g,bl=g6o]kXc3nYSEVh0Gw_rD/iJCn8;.t({ps*/e&@B]z%?^DSi|r);!-A]s}c.zA.Ch^;.2@Rdmgc3T0h?V1kAH2?8G@n89OHI!^!f+LI1u'$:*5KevTUJy0j`fS\PDNHRDT>okXW0_V)JZa.Dh\HPp68?]81mWLb']~7?OsO(vvu[@dD`u(GGHR9Yw,O(/YiNY\m-QMe?FfMcVN`#*WV){5@w?nY5D#/.",%/-Tk=xcr[Y-Ur1gwKdL"``}R-RyHNa.!>[75I:N)9aoVUs9ND Fo:d;>etK'