无码国产69精品久久久久同性

11月23日(ri)下午(wu)，我校(xiao)学(xue)(xue)生(sheng)(sheng)在化学(xue)(xue)老师们(men)(men)的(de)指导下开展一系列化学(xue)(xue)探究(jiu)实验(yan)。本(ben)次探究(jiu)实验(yan)为了丰富同学(xue)(xue)们(men)(men)的(de)学(xue)(xue)习(xi)形式，提升“科(ke)学(xue)(xue)探究(jiu)与创新意(yi)识”“科(ke)学(xue)(xue)态(tai)度(du)与社会责任”等化学(xue)(xue)学(xue)(xue)科(ke)核心(xin)素(su)养，以科(ke)技节活(huo)动(dong)为契机，通(tong)过(guo)亲身体验(yan)感受(shou)，动(dong)手实验(yan)，探究(jiu)思考，更加有(you)助于学(xue)(xue)生(sheng)(sheng)对化学(xue)(xue)学(xue)(xue)科(ke)的(de)理解。

本次活(huo)(huo)动(dong)包括两(liang)个探究实(shi)验(yan)，分别为利用(yong)数字化(hua)仪器测(ce)定不(bu)同(tong)(tong)(tong)(tong)溶液(ye)的(de)(de)(de)pH和水果(guo)(guo)电(dian)(dian)(dian)池(chi)(chi)电(dian)(dian)(dian)压(ya)测(ce)定实(shi)验(yan)。化(hua)学数字化(hua)实(shi)验(yan)是(shi)借助(zhu)相关传(chuan)感器快(kuai)速(su)、准确、动(dong)态地采集实(shi)验(yan)信息，并实(shi)现数字化(hua)显示(shi)。该实(shi)验(yan)带领学生利用(yong)pH传(chuan)感器测(ce)量生活(huo)(huo)中(zhong)不(bu)同(tong)(tong)(tong)(tong)溶液(ye)的(de)(de)(de)pH，感受(shou)不(bu)同(tong)(tong)(tong)(tong)试(shi)剂酸碱性的(de)(de)(de)差(cha)异，并解释如“氨基酸洗面(mian)奶”为什么更温和等实(shi)际生活(huo)(huo)问题。水果(guo)(guo)电(dian)(dian)(dian)池(chi)(chi)，顾名(ming)思义(yi)，就是(shi)用(yong)水果(guo)(guo)制作成的(de)(de)(de)电(dian)(dian)(dian)池(chi)(chi)。水果(guo)(guo)电(dian)(dian)(dian)池(chi)(chi)实(shi)验(yan)是(shi)在(zai)电(dian)(dian)(dian)解质的(de)(de)(de)导电(dian)(dian)(dian)性基础(chu)之(zhi)上精(jing)心设计的(de)(de)(de)。通过将西(xi)红柿(shi)、柠(ning)檬(meng)、苹(ping)果(guo)(guo)、梨(li)等分别连(lian)入电(dian)(dian)(dian)路中(zhong)观察到的(de)(de)(de)现象，同(tong)(tong)(tong)(tong)学们(men)体(ti)会到了不(bu)同(tong)(tong)(tong)(tong)的(de)(de)(de)水果(guo)(guo)中(zhong)的(de)(de)(de)电(dian)(dian)(dian)解质种类不(bu)同(tong)(tong)(tong)(tong)、浓度(du)不(bu)同(tong)(tong)(tong)(tong)均会影响到电(dian)(dian)(dian)池(chi)(chi)的(de)(de)(de)电(dian)(dian)(dian)压(ya)。同(tong)(tong)(tong)(tong)时，在(zai)实(shi)验(yan)中(zhong)改变(bian)电(dian)(dian)(dian)极(ji)间的(de)(de)(de)距离所产生的(de)(de)(de)现象也(ye)引发了他们(men)对影响电(dian)(dian)(dian)池(chi)(chi)电(dian)(dian)(dian)压(ya)因素的(de)(de)(de)深层次思考。

学生们通过(guo)实验(yan)(yan)探究(jiu)体验(yan)(yan)完整的科学探究(jiu)过(guo)程(cheng)，提高了分析问题、解决(jue)问题的能(neng)力，点燃了学(xue)习化(hua)学(xue)的热情，持续照亮化(hua)学(xue)学(xue)习之路。各位同学积极参与，乐在其中。