<p> 今天我们来学习自制净水器</p><h3 style="margin: 0pt;"><span style='font-family: 宋体; font-size: 14pt; mso-spacerun: "yes"; mso-font-kerning: 1.0000pt;'><strong><font color="#ed2308"> 材料</font></strong></span></h3><p style="margin: 0pt;"><span style='font-family: 宋体; font-size: 14pt; mso-spacerun: "yes"; mso-font-kerning: 1.0000pt;'></span><font color="#000000"><span style='font-family: 宋体; font-size: 14pt; mso-spacerun: "yes"; mso-font-kerning: 1.0000pt;'><font face="宋体"> 两</font></span><span style='font-family: 宋体; font-size: 14pt; mso-spacerun: "yes"; mso-font-kerning: 1.0000pt;'><font face="宋体">个玻璃杯</font></span><span style='font-family: 宋体; font-size: 14pt; mso-spacerun: "yes"; mso-font-kerning: 1.0000pt;'><font face="宋体">、小勺子、泥土、面巾纸</font></span></font></p><h3 style="margin: 0pt;"><span style='font-family: 宋体; font-size: 14pt; mso-spacerun: "yes"; mso-font-kerning: 1.0000pt;'><span style='font-family: 宋体; font-size: 14pt; mso-spacerun: "yes"; mso-font-kerning: 1.0000pt;'><span style='font-family: 宋体; font-size: 14pt; mso-spacerun: "yes"; mso-font-kerning: 1.0000pt;'><strong><font color="#ed2308"> 实验步骤</font></strong></span></span></span></h3><p style="margin: 0pt;"><font color="#000000"><span style='font-family: 宋体; font-size: 14pt; mso-spacerun: "yes"; mso-font-kerning: 1.0000pt;'><font face="宋体"><font color="#000000"><span style='font-family: 宋体; font-size: 14pt; mso-spacerun: "yes"; mso-font-kerning: 1.0000pt;'><span style='font-family: 宋体; font-size: 14pt; mso-spacerun: "yes"; mso-font-kerning: 1.0000pt;'><font face="宋体"><font color="#000000"><span style='font-family: 宋体; font-size: 14pt; mso-spacerun: "yes"; mso-font-kerning: 1.0000pt;'><font face="宋体"><font color="#000000"><span style='font-family: 宋体; font-size: 14pt; mso-spacerun: "yes"; mso-font-kerning: 1.0000pt;'><span style='font-family: 宋体; font-size: 14pt; mso-spacerun: "yes"; mso-font-kerning: 1.0000pt;'> 1、首先</span><span style='font-family: 宋体; font-size: 14pt; mso-spacerun: "yes"; mso-font-kerning: 1.0000pt;'><font face="宋体">将</font></span><span style='font-family: 宋体; font-size: 14pt; mso-spacerun: "yes"; mso-font-kerning: 1.0000pt;'><font face="宋体">泥土倒入杯中。</font></span></span></font></font></span></font></font></span></span></font></font></span></font><p style="margin: 0pt;"><font color="#000000"><span style='font-family: 宋体; font-size: 14pt; mso-spacerun: "yes"; mso-font-kerning: 1.0000pt;'><font face="宋体"><font color="#000000"><span style='font-family: 宋体; font-size: 14pt; mso-spacerun: "yes"; mso-font-kerning: 1.0000pt;'><span style='font-family: 宋体; font-size: 14pt; mso-spacerun: "yes"; mso-font-kerning: 1.0000pt;'><font face="宋体"><font color="#000000"><span style='font-family: 宋体; font-size: 14pt; mso-spacerun: "yes"; mso-font-kerning: 1.0000pt;'><font face="宋体"><font color="#000000"><span style='font-family: 宋体; font-size: 14pt; mso-spacerun: "yes"; mso-font-kerning: 1.0000pt;'><span style='font-family: 宋体; font-size: 14pt; mso-spacerun: "yes"; mso-font-kerning: 1.0000pt;'><font face="宋体"><font color="#000000"><font face="宋体"><font color="#000000"><font face="宋体"><font color="#000000"><span style='font-family: 宋体; font-size: 14pt; mso-spacerun: "yes"; mso-font-kerning: 1.0000pt;'> 2、向</span><span style='font-family: 宋体; font-size: 14pt; mso-spacerun: "yes"; mso-font-kerning: 1.0000pt;'><font face="宋体">玻璃杯中</font></span><span style='font-family: 宋体; font-size: 14pt; mso-spacerun: "yes"; mso-font-kerning: 1.0000pt;'><font face="宋体">倒入清水</font></span><span style='font-family: 宋体; font-size: 14pt; mso-spacerun: "yes"; mso-font-kerning: 1.0000pt;'><font face="宋体">，</font></span><span style='font-family: 宋体; font-size: 14pt; mso-spacerun: "yes"; mso-font-kerning: 1.0000pt;'><font face="宋体">并轻轻用小勺子搅拌均匀</font></span><span style='font-family: 宋体; font-size: 14pt; mso-spacerun: "yes"; mso-font-kerning: 1.0000pt;'><font face="宋体">。</font></span></font></font></font></font></font></font></span></span></font></font></span></font></font></span></span></font></font></span></font><p style="margin: 0pt;"><font color="#000000"><font face="宋体"><font color="#000000"><font face="宋体"><font color="#000000"><span style='font-family: 宋体; font-size: 14pt; mso-spacerun: "yes"; mso-font-kerning: 1.0000pt;'> 3、将面巾纸卷成棒状</span><span style='font-family: 宋体; font-size: 14pt; mso-spacerun: "yes"; mso-font-kerning: 1.0000pt;'><font face="宋体">，</font></span><span style='font-family: 宋体; font-size: 14pt; mso-spacerun: "yes"; mso-font-kerning: 1.0000pt;'><font face="宋体">将纸巾架入两个玻璃杯中，一端放入装有泥水的杯中，另一端放入空的玻璃杯中。</font></span></font></font></font></font></font></p><h3 style="margin: 0pt;"><span style='font-family: 宋体; font-size: 14pt; mso-spacerun: "yes"; mso-font-kerning: 1.0000pt;'><strong><font color="#ed2308"> 观察现象</font></strong></span></h3><p style="margin: 0pt;"><font color="#000000"><font face="宋体"><font color="#000000"><font face="宋体"><font color="#000000"><font face="宋体"><font face="宋体"><font face="宋体"><span style='font-family: 宋体; font-size: 14pt; mso-spacerun: "yes"; mso-font-kerning: 1.0000pt;'><font face="宋体"> 发现</font></span><span style='font-family: 宋体; font-size: 14pt; mso-spacerun: "yes"; mso-font-kerning: 1.0000pt;'><font face="宋体">空的玻璃杯中慢慢有水被吸收过来，并且吸收过来的水是清亮的。</font></span></font></font></font></font></font></font></font></font></p><font color="#000000"><font color="#000000"><font face="宋体"></font><font face="宋体"><p style="margin: 0pt;"><p></p><p></p></font></font></font><p></p><font face="宋体"></font><p style="margin: 0pt;"><br></p><p style="margin: 0pt;"><span style='font-family: 宋体; font-size: 14pt; mso-spacerun: "yes"; mso-font-kerning: 1.0000pt;'><font face="宋体"></font></span><br></p> <h3 style="margin: 0pt 0pt 0pt 28.05pt; text-align: left; text-indent: 28pt; mso-char-indent-count: 2.0000; mso-para-margin-left: 2.6700gd;"><span style='font-family: 宋体; font-size: 14pt; mso-spacerun: "yes"; mso-font-kerning: 1.0000pt;'><strong><font color="#ed2308"> 实验原理</font></strong></span></h3><p style="margin: 0pt;"><span style='font-family: 宋体; font-size: 14pt; mso-spacerun: "yes"; mso-font-kerning: 1.0000pt;'><font color="#000000"><font face="宋体"> 因为</font>“毛细现象”，纸巾中的纤维可将水吸收上来。但沙土不能被纤维吸上来，水和泥土便分离开来。</font></span></p> <p style="margin: 0pt 0pt 0pt 28.05pt; text-align: left; text-indent: 28pt; mso-char-indent-count: 2.0000; mso-para-margin-left: 2.6700gd;"><br></p><p style="margin: 0pt;"><span style='font-family: 宋体; font-size: 14pt; mso-spacerun: "yes"; mso-font-kerning: 1.0000pt;'><font color="#000000"></font></span><br></p>