<h3> 2020年的春天，注定会让人永生难忘，为了孩子们在家的生活丰富多彩，老师精选了简单有趣的科学小实验，让我们共同开启“动手动脑”的小实验课程吧！</h3> <h1><b><font color="#39b54a">忽远忽近的气球</font></b></h1> <h3><i><font color="#ff8a00"><b>材料</b></font></i></h3> <h3><span style="color: rgb(51, 51, 51); font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 15px; letter-spacing: 2px; text-align: center; white-space: normal;">纸板/棉线/气球</span><br></h3> <h3><b><i><font color="#ff8a00">步骤</font></i></b></h3> <section class="" style="max-width: 100%; overflow-wrap: break-word !important;"><section class="" style="max-width: 100%; font-size: 12px; color: rgb(0, 0, 0); overflow-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; text-align: center; letter-spacing: 2px; line-height: 1.75em; overflow-wrap: break-word !important;"><span style="max-width: 100%; background-color: rgb(142, 201, 101); font-size: 15px; overflow-wrap: break-word !important;"><strong style="max-width: 100%; overflow-wrap: break-word !important;">-第一步-<br style="max-width: 100%; overflow-wrap: break-word !important;"></strong></span></h3></section></section></section><section class="" style="max-width: 100%; overflow-wrap: break-word !important;"><section class="" style="max-width: 100%; text-align: center; overflow-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; line-height: 1.75em; overflow-wrap: break-word !important;"><span style="max-width: 100%; font-size: 15px; overflow-wrap: break-word !important;">吹好气球后用棉线将两个气球系在一起</span></h3></section></section></section> <section class="" style="max-width: 100%; overflow-wrap: break-word !important;"><section class="" style="max-width: 100%; font-size: 12px; overflow-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; text-align: center; line-height: 1.75em; overflow-wrap: break-word !important;"><span style="max-width: 100%; background-color: rgb(249, 110, 87); font-size: 15px; overflow-wrap: break-word !important;"><strong style="max-width: 100%; overflow-wrap: break-word !important;">-第二步-<br style="max-width: 100%; overflow-wrap: break-word !important;"></strong></span></h3></section></section></section><section class="" style="max-width: 100%; overflow-wrap: break-word !important;"><section class="" style="max-width: 100%; text-align: center; overflow-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; line-height: 1.75em; overflow-wrap: break-word !important;"><span style="max-width: 100%; font-size: 15px; overflow-wrap: break-word !important;">气球垂直下放</span></h3><p style="max-width: 100%; clear: both; min-height: 1em; line-height: 1.75em; overflow-wrap: break-word !important;"><span style="max-width: 100%; font-size: 15px; overflow-wrap: break-word !important;">发现两个气球会像好朋友一样靠在一起</span></h3></section></section></section> <section class="" style="max-width: 100%; overflow-wrap: break-word !important;"><section class="" style="max-width: 100%; font-size: 12px; overflow-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; text-align: center; line-height: 1.75em; overflow-wrap: break-word !important;"><span style="max-width: 100%; background-color: rgb(255, 202, 0); font-size: 15px; overflow-wrap: break-word !important;"><strong style="max-width: 100%; overflow-wrap: break-word !important;">-第三步-<br style="max-width: 100%; overflow-wrap: break-word !important;"></strong></span></h3></section></section></section><section class="" style="max-width: 100%; transform: translate3d(0px, 0px, 0px); text-align: right; overflow-wrap: break-word !important;"><section class="" style="max-width: 100%; text-align: center; overflow-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; line-height: 1.75em; overflow-wrap: break-word !important;"><span style="max-width: 100%; font-size: 15px; overflow-wrap: break-word !important;">将两个气球在头发上摩擦</span></h3></section></section></section> <section class="" style="max-width: 100%; overflow-wrap: break-word !important;"><section class="" style="max-width: 100%; font-size: 12px; overflow-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; text-align: center; line-height: 1.75em; overflow-wrap: break-word !important;"><span style="max-width: 100%; background-color: rgb(106, 187, 189); font-size: 15px; overflow-wrap: break-word !important;"><strong style="max-width: 100%; overflow-wrap: break-word !important;">-第四步-<br style="max-width: 100%; overflow-wrap: break-word !important;"></strong></span></h3></section></section></section><section class="" style="max-width: 100%; overflow-wrap: break-word !important;"><section class="" style="max-width: 100%; text-align: center; overflow-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; line-height: 1.75em; overflow-wrap: break-word !important;"><span style="max-width: 100%; font-size: 15px; overflow-wrap: break-word !important;">再次将两个气球垂直下放</span></h3><p style="max-width: 100%; clear: both; min-height: 1em; line-height: 1.75em; overflow-wrap: break-word !important;"><span style="max-width: 100%; font-size: 15px; overflow-wrap: break-word !important;">两个气球互相排斥远离</span></h3></section></section></section> <section class="" style="max-width: 100%; overflow-wrap: break-word !important;"><section class="" style="max-width: 100%; font-size: 12px; overflow-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; text-align: center; line-height: 1.75em; overflow-wrap: break-word !important;"><span style="max-width: 100%; background-color: rgb(106, 187, 189); font-size: 15px; overflow-wrap: break-word !important;"><strong style="max-width: 100%; overflow-wrap: break-word !important;">-第五步-<br style="max-width: 100%; overflow-wrap: break-word !important;"></strong></span></h3></section></section></section><section class="" style="max-width: 100%; overflow-wrap: break-word !important;"><section class="" style="max-width: 100%; text-align: center; overflow-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; line-height: 1.75em; overflow-wrap: break-word !important;"><span style="max-width: 100%; font-size: 15px; overflow-wrap: break-word !important;">将纸板插入两个气球中间</span></h3><p style="max-width: 100%; clear: both; min-height: 1em; line-height: 1.75em; overflow-wrap: break-word !important;"><span style="max-width: 100%; font-size: 15px; overflow-wrap: break-word !important;">发现带电气球又会相互靠近</span></h3></section></section></section> <h3><b><i><font color="#ff8a00">原理</font></i></b></h3> <section class="" style="padding-right: 9px; padding-left: 9px; max-width: 100%; color: rgb(51, 51, 51); font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; letter-spacing: 0.544px; text-align: justify; white-space: normal; display: inline-block; width: 306px; vertical-align: top; box-shadow: rgb(0, 0, 0) 0px 0px 0px; overflow-wrap: break-word !important;"><span style="max-width: 100%; font-size: 15px; overflow-wrap: break-word !important;">摩擦可以起电，摩擦后的正负电荷是被束缚在带电体上的，它不能象电线中的电荷那样定向移动。所以，人们称之为静电荷，简称静电。</span></section><section class="" style="padding-right: 9px; padding-left: 9px; max-width: 100%; color: rgb(51, 51, 51); font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; letter-spacing: 0.544px; text-align: justify; white-space: normal; display: inline-block; width: 306px; vertical-align: top; box-shadow: rgb(0, 0, 0) 0px 0px 0px; overflow-wrap: break-word !important;"><span style="max-width: 100%; font-size: 15px; overflow-wrap: break-word !important;">气球通过和头发摩擦产生了静电这个时候两个气球的电性是一样。所以同性相斥。</span></section> <section class="" style="padding-right: 9px; padding-left: 9px; max-width: 100%; color: rgb(51, 51, 51); font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; letter-spacing: 0.544px; text-align: justify; white-space: normal; display: inline-block; width: 306px; vertical-align: top; box-shadow: rgb(0, 0, 0) 0px 0px 0px; overflow-wrap: break-word !important;"><span style="max-width: 100%; font-size: 15px; overflow-wrap: break-word !important;">纸板上没有电，而气球又带电。它们的电性不相同就会吸附在一起了啊。这就是异性相吸。</span></section><div><p style="padding-right: 9px; padding-left: 9px; max-width: 100%; color: rgb(51, 51, 51); font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; letter-spacing: 0.544px; text-align: justify; white-space: normal; display: inline-block; width: 306px; vertical-align: top; box-shadow: rgb(0, 0, 0) 0px 0px 0px; overflow-wrap: break-word !important;"><span style="max-width: 100%; font-size: 15px; overflow-wrap: break-word !important;"><br></span></h3></div> <h1><b><font color="#39b54a">白菜喝水</font></b></h1> <h3><b><i><font color="#ff8a00">材料</font></i></b></h3> <h3><span style="color: rgb(51, 51, 51); font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 14px; letter-spacing: 0.544px; text-align: center; white-space: normal;">大白菜/色素/塑料杯</span><br></h3> <h3><b><i><font color="#ff8a00">步骤</font></i></b></h3> <section class="" style="max-width: 100%; overflow-wrap: break-word !important;"><section class="" style="max-width: 100%; font-size: 14px; overflow-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; text-align: center; overflow-wrap: break-word !important;">-1-<br style="max-width: 100%; overflow-wrap: break-word !important;"></h3></section></section></section><section class="" style="max-width: 100%; overflow-wrap: break-word !important;"><section class="" style="max-width: 100%; text-align: center; font-size: 14px; overflow-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; overflow-wrap: break-word !important;">向三个杯子中分别加入不同颜色的色素</h3></section></section></section> <section class="" style="max-width: 100%; overflow-wrap: break-word !important;"><section class="" style="max-width: 100%; font-size: 14px; overflow-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; text-align: center; overflow-wrap: break-word !important;">-2-<br style="max-width: 100%; overflow-wrap: break-word !important;"></h3></section></section></section><section class="" style="max-width: 100%; overflow-wrap: break-word !important;"><section class="" style="max-width: 100%; text-align: center; font-size: 14px; overflow-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; overflow-wrap: break-word !important;">向杯中倒入水</h3></section></section></section> <section class="" style="max-width: 100%; overflow-wrap: break-word !important;"><section class="" style="max-width: 100%; font-size: 14px; overflow-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; text-align: center; overflow-wrap: break-word !important;">-3-<br style="max-width: 100%; overflow-wrap: break-word !important;"></h3></section></section></section><section class="" style="max-width: 100%; overflow-wrap: break-word !important;"><section class="" style="max-width: 100%; font-size: 14px; overflow-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; text-align: center; overflow-wrap: break-word !important;">将大白菜菜叶放入杯中</h3></section></section></section> <section class="" style="max-width: 100%; overflow-wrap: break-word !important;"><section class="" style="max-width: 100%; font-size: 14px; overflow-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; text-align: center; overflow-wrap: break-word !important;">-4-<br style="max-width: 100%; overflow-wrap: break-word !important;"></h3></section></section></section><section class="" style="max-width: 100%; overflow-wrap: break-word !important;"><section class="" style="max-width: 100%; text-align: center; font-size: 14px; overflow-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; overflow-wrap: break-word !important;">静置一段时间后（一般一天），</h3><p style="max-width: 100%; clear: both; min-height: 1em; overflow-wrap: break-word !important;"><span style="max-width: 100%; letter-spacing: 0px; overflow-wrap: break-word !important;">会看到色素的颜色顺着叶脉往上走</span></h3><p style="max-width: 100%; clear: both; min-height: 1em; overflow-wrap: break-word !important;"><span style="max-width: 100%; letter-spacing: 0px; overflow-wrap: break-word !important;">叶子变得有颜色了</span></h3></section></section></section> <h3><b><i><font color="#ff8a00">原理</font></i></b></h3> <section class="" style="max-width: 100%; overflow-wrap: break-word !important;"><section class="" style="max-width: 100%; font-size: 14px; overflow-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; overflow-wrap: break-word !important;">植物是通过根部吸收水分，<strong style="max-width: 100%; overflow-wrap: break-word !important;">叶子中有很多“管道”</strong>，<span style="max-width: 100%; font-size: 14px; line-height: 24.8889px; overflow-wrap: break-word !important;">“</span><span style="max-width: 100%; font-size: 14px; line-height: 24.8889px; overflow-wrap: break-word !important;">管道</span><span style="max-width: 100%; font-size: 14px; line-height: 24.8889px; overflow-wrap: break-word !important;">”半径越小，水份上升高度越大。因此可以轻松地</span>把从根部吸收的水分，输送到叶片的各个部分，这是“<strong style="max-width: 100%; overflow-wrap: break-word !important;">毛细现象</strong>”。</h3></section></section></section><section class="" style="max-width: 100%; overflow-wrap: break-word !important;"><section class="" style="max-width: 100%; overflow-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; overflow-wrap: break-word !important;"><br style="max-width: 100%; overflow-wrap: break-word !important;"></h3></section></section></section><h3><section class="" style="max-width: 100%; overflow-wrap: break-word !important;"><section class="" style="max-width: 100%; overflow-wrap: break-word !important;"></section></section></section></h3><section class="" style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; word-wrap: break-word !important;"><section class="" style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; word-wrap: break-word !important; font-size: 14px;"><p style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important; clear: both; min-height: 1em;">在自然界和日常生活中有许多毛细现象的例子，<strong style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;">砖块吸水、毛巾吸汗、粉笔吸墨水</strong>都是常见的毛细现象。在这些物体中有许多细小的孔道，起着毛细管的作用。同样，你也可以用这个原理在白色的花上来观察这些变化哦！</h3></section></section></section> <h1><b><font color="#39b54a">种子发芽</font></b></h1> <h3><b><i><font color="#ff8a00">材料</font></i></b></h3> <h3><span style="color: rgb(51, 51, 51); font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 14px; letter-spacing: 0.544px; text-align: center; white-space: normal;">种子/镊子/小碟/种子盒/放大镜</span><br></h3> <h3><b><i><font color="#ff8a00">步骤</font></i></b></h3> <section class="" style="max-width: 100%; overflow-wrap: break-word !important;"><section class="" style="max-width: 100%; font-size: 14px; overflow-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; text-align: center; overflow-wrap: break-word !important;">-1-<br style="max-width: 100%; overflow-wrap: break-word !important;"></h3></section></section></section><section class="" style="max-width: 100%; overflow-wrap: break-word !important;"><section class="" style="max-width: 100%; text-align: center; font-size: 14px; overflow-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; overflow-wrap: break-word !important;">用镊子将黄豆、绿豆、玉米、豌豆种子</h3><p style="max-width: 100%; clear: both; min-height: 1em; overflow-wrap: break-word !important;">分别放到四个小碟中，倒水，让种子被水浸泡一天</h3></section></section></section> <section class="" style="max-width: 100%; overflow-wrap: break-word !important;"><section class="" style="max-width: 100%; font-size: 14px; overflow-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; text-align: center; overflow-wrap: break-word !important;">-2-<br style="max-width: 100%; overflow-wrap: break-word !important;"></h3></section></section></section><section class="" style="max-width: 100%; overflow-wrap: break-word !important;"><section class="" style="max-width: 100%; text-align: center; font-size: 14px; overflow-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; overflow-wrap: break-word !important;">第二天，分别观察每个种子的变化<br style="max-width: 100%; overflow-wrap: break-word !important;"></h3><p style="max-width: 100%; clear: both; min-height: 1em; overflow-wrap: break-word !important;">可以拿笔记本记录自己的发现</h3></section></section></section> <section class="" style="max-width: 100%; overflow-wrap: break-word !important;"><section class="" style="max-width: 100%; font-size: 14px; overflow-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; text-align: center; overflow-wrap: break-word !important;">-3-<br style="max-width: 100%; overflow-wrap: break-word !important;"></h3></section></section></section><section class="" style="max-width: 100%; transform: translate3d(0px, 0px, 0px); text-align: right; overflow-wrap: break-word !important;"><section class="" style="max-width: 100%; text-align: center; font-size: 14px; overflow-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; overflow-wrap: break-word !important;">第三天，我们可以看到绿豆种子发芽速度最快</h3></section></section></section> <section class="" style="max-width: 100%; overflow-wrap: break-word !important;"><section class="" style="max-width: 100%; font-size: 14px; overflow-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; text-align: center; overflow-wrap: break-word !important;">-4-<br style="max-width: 100%; overflow-wrap: break-word !important;"></h3></section></section></section><section class="" style="max-width: 100%; transform: translate3d(0px, 0px, 0px); text-align: right; overflow-wrap: break-word !important;"><section class="" style="max-width: 100%; text-align: center; font-size: 14px; overflow-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; overflow-wrap: break-word !important;">裁剪纸巾，放入种子盒中，再倒少量水</h3><p style="max-width: 100%; clear: both; min-height: 1em; overflow-wrap: break-word !important;">把不同的种子放入盒中，再盖上纸巾</h3></section></section></section> <section class="" style="max-width: 100%; overflow-wrap: break-word !important;"><section class="" style="max-width: 100%; font-size: 14px; overflow-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; text-align: center; overflow-wrap: break-word !important;">-5-<br style="max-width: 100%; overflow-wrap: break-word !important;"></h3></section></section></section><section class="" style="max-width: 100%; transform: translate3d(0px, 0px, 0px); text-align: right; overflow-wrap: break-word !important;"><section class="" style="max-width: 100%; text-align: center; font-size: 14px; overflow-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; overflow-wrap: break-word !important;">待到第八天，除了玉米种子</h3><p style="max-width: 100%; clear: both; min-height: 1em; overflow-wrap: break-word !important;">其他种子全都长出了嫩绿的芽</h3></section></section></section> <h3><b><i><font color="#ff8a00">原理</font></i></b></h3> <h3><section class="" style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; word-wrap: break-word !important;"><section class="" style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; word-wrap: break-word !important;"></section></section></section></h3><section class="" style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; word-wrap: break-word !important;"><section class="" style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; word-wrap: break-word !important; font-size: 14px;"><p style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; word-wrap: break-word !important; clear: both; min-height: 1em;">一般植物的种子由种皮、胚和胚乳3个部分组成。<strong style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; word-wrap: break-word !important; letter-spacing: 0px;">种皮</strong><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; word-wrap: break-word !important; letter-spacing: 0px;">是种子的“铠甲”，起着保护种子的作用。</span><strong style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; word-wrap: break-word !important; letter-spacing: 0px;">胚</strong><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; word-wrap: break-word !important; letter-spacing: 0px;">是种子最重要的部分，可以发育成植物的根、茎和叶。</span><strong style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; word-wrap: break-word !important; letter-spacing: 0px;">胚乳</strong><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; word-wrap: break-word !important; letter-spacing: 0px;">是种子集中养料的地方，不同植物的胚乳中所含养分各不相同。</span></h3></section></section></section> <section class="" style="max-width: 100%; overflow-wrap: break-word !important;"><section class="" style="max-width: 100%; font-size: 14px; overflow-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; overflow-wrap: break-word !important;">在本次实验中，无需土壤，种子也能发芽，其实它的养料来自于种子的子叶，<strong style="max-width: 100%; overflow-wrap: break-word !important;">子叶把养料源源不断地输送到根、茎、叶</strong>，供它们长大。</h3></section></section></section><section class="" style="max-width: 100%; overflow-wrap: break-word !important;"><section class="" style="max-width: 100%; overflow-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; overflow-wrap: break-word !important;"><strong style="letter-spacing: 0.544px; max-width: 100%; overflow-wrap: break-word !important;">种子发芽其实也受条件的限制</strong><span style="letter-spacing: 0.544px;">，如温度、水分、空气等。此次玉米种子没有发芽，可能就是没有达到发芽所需条件，所以等下次老师的玉米种子发芽了，再给大家看玉米发芽的实验结果哦！</span><br></h3></section></section></section> <h1><b><font color="#39b54a">蜡笔瀑布</font></b></h1> <h3><b><i><font color="#ff8a00">材料</font></i></b></h3> <h3><span style="color: rgb(51, 51, 51); font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 15px; letter-spacing: 2px; text-align: center; white-space: normal;">蜡笔/塑料垫板/双面胶/吹风机</span><br></h3> <h3><b><i><font color="#ff8a00">步骤</font></i></b></h3> <section class="" style="max-width: 100%; overflow-wrap: break-word !important;"><section class="" style="max-width: 100%; font-size: 12px; color: rgb(0, 0, 0); overflow-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; text-align: center; letter-spacing: 2px; line-height: 1.75em; overflow-wrap: break-word !important;"><span style="max-width: 100%; background-color: rgb(106, 187, 189); font-size: 15px; overflow-wrap: break-word !important;"><strong style="max-width: 100%; overflow-wrap: break-word !important;">-第一步-<br style="max-width: 100%; overflow-wrap: break-word !important;"></strong></span></h3></section></section></section><section class="" style="max-width: 100%; overflow-wrap: break-word !important;"><section class="" style="max-width: 100%; text-align: center; font-size: 14px; overflow-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; line-height: 1.75em; overflow-wrap: break-word !important;"><span style="max-width: 100%; font-size: 15px; overflow-wrap: break-word !important;">将蜡笔用双面胶粘贴，固定在塑料垫板上</span></h3></section></section></section> <section class="" style="max-width: 100%; overflow-wrap: break-word !important;"><section class="" style="max-width: 100%; font-size: 12px; overflow-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; text-align: center; line-height: 1.75em; overflow-wrap: break-word !important;"><span style="max-width: 100%; background-color: rgb(106, 187, 189); font-size: 15px; overflow-wrap: break-word !important;"><strong style="max-width: 100%; overflow-wrap: break-word !important;">-第二步-<br style="max-width: 100%; overflow-wrap: break-word !important;"></strong></span></h3></section></section></section><section class="" style="max-width: 100%; overflow-wrap: break-word !important;"><section class="" style="max-width: 100%; text-align: center; font-size: 14px; overflow-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; line-height: 1.75em; overflow-wrap: break-word !important;"><span style="max-width: 100%; font-size: 15px; overflow-wrap: break-word !important;">将垫板斜放在盆子中</span></h3></section></section></section> <section class="" style="max-width: 100%; overflow-wrap: break-word !important;"><section class="" style="max-width: 100%; font-size: 12px; overflow-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; text-align: center; line-height: 1.75em; overflow-wrap: break-word !important;"><span style="max-width: 100%; background-color: rgb(106, 187, 189); font-size: 15px; overflow-wrap: break-word !important;"><strong style="max-width: 100%; overflow-wrap: break-word !important;">-第三步-<br style="max-width: 100%; overflow-wrap: break-word !important;"></strong></span></h3></section></section></section><section class="" style="max-width: 100%; transform: translate3d(0px, 0px, 0px); text-align: right; overflow-wrap: break-word !important;"><section class="" style="max-width: 100%; text-align: center; font-size: 14px; overflow-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; line-height: 1.75em; overflow-wrap: break-word !important;"><span style="max-width: 100%; font-size: 15px; overflow-wrap: break-word !important;">打开吹风机热风档，对着蜡笔吹</span></h3></section></section></section> <section class="" style="max-width: 100%; overflow-wrap: break-word !important;"><section class="" style="max-width: 100%; font-size: 12px; overflow-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; text-align: center; line-height: 1.75em; overflow-wrap: break-word !important;"><span style="max-width: 100%; background-color: rgb(106, 187, 189); font-size: 15px; overflow-wrap: break-word !important;"><strong style="max-width: 100%; overflow-wrap: break-word !important;">-第四步-<br style="max-width: 100%; overflow-wrap: break-word !important;"></strong></span></h3></section></section></section><section class="" style="max-width: 100%; transform: translate3d(0px, 0px, 0px); text-align: right; overflow-wrap: break-word !important;"><section class="" style="max-width: 100%; text-align: center; font-size: 14px; overflow-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; line-height: 1.75em; overflow-wrap: break-word !important;"><span style="max-width: 100%; font-size: 15px; overflow-wrap: break-word !important;">蜡笔开始变成彩色的瀑布</span></h3></section></section></section> <h3><b><i><font color="#ff8a00">原理</font></i></b></h3> <h3><span style="color: rgb(51, 51, 51); font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 15px; letter-spacing: 2px; text-align: justify; white-space: normal;">我们把物质从一种状态变化到另一种状态的过程，叫做</span><span style="max-width: 100%; font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 15px; letter-spacing: 2px; text-align: justify; white-space: normal; color: rgb(249, 110, 87); overflow-wrap: break-word !important;"><strong style="max-width: 100%; overflow-wrap: break-word !important;">物态变化</strong></span><span style="color: rgb(51, 51, 51); font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 15px; letter-spacing: 2px; text-align: justify; white-space: normal;">。</span><br></h3> <section class="" style="max-width: 100%; overflow-wrap: break-word !important;"><section class="" style="max-width: 100%; text-align: justify; font-size: 14px; overflow-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; white-space: normal; line-height: 1.75em; overflow-wrap: break-word !important;"><span style="max-width: 100%; font-size: 15px; overflow-wrap: break-word !important;">本次实验中，吹风机吹热风，蜡笔吸热由固态变成液态，这种现象属于物态变化中的<span style="max-width: 100%; color: rgb(249, 110, 87); overflow-wrap: break-word !important;"><strong style="max-width: 100%; overflow-wrap: break-word !important;">熔化</strong></span>。</span></h3><p style="max-width: 100%; clear: both; min-height: 1em; white-space: normal; line-height: 1.75em; overflow-wrap: break-word !important;"><span style="max-width: 100%; font-size: 15px; overflow-wrap: break-word !important;"></span><span style="color: rgb(51, 51, 51); font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 15px;">生活中我们经常可以看到物态变化，比如：</span></h3></section></section></section><section class="" style="max-width: 100%; overflow-wrap: break-word !important;"><section class="" style="max-width: 100%; font-size: 14px; overflow-wrap: break-word !important;"><div><span style="max-width: 100%; font-size: 15px; overflow-wrap: break-word !important;"><br></span></div></section></section></section> <h3><span style="color: rgb(51, 51, 51); font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 15px; letter-spacing: 2px; text-align: justify; white-space: normal;">冬天的早晨我们可以看到草地上结了霜，这是气体放热变成固体，属于</span><span style="max-width: 100%; font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 15px; letter-spacing: 2px; text-align: justify; white-space: normal; color: rgb(249, 110, 87); overflow-wrap: break-word !important;"><strong style="max-width: 100%; overflow-wrap: break-word !important;">凝华</strong></span><span style="color: rgb(51, 51, 51); font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 15px; letter-spacing: 2px; text-align: justify; white-space: normal;">。</span><br></h3> <h3><span style="color: rgb(51, 51, 51); font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 15px; letter-spacing: 2px; text-align: justify; white-space: normal;">夏天晾衣服，湿衣服很快被晒干了，由液体吸热变成气体，属于</span><span style="max-width: 100%; font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 15px; letter-spacing: 2px; text-align: justify; white-space: normal; color: rgb(249, 110, 87); overflow-wrap: break-word !important;"><strong style="max-width: 100%; overflow-wrap: break-word !important;">汽化</strong></span><span style="color: rgb(51, 51, 51); font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 15px; letter-spacing: 2px; text-align: justify; white-space: normal;">。</span><br></h3> <h3><span style="color: rgb(51, 51, 51); font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 15px; letter-spacing: 2px; text-align: justify; white-space: normal;">灯泡用久了，里面的灯丝变细了，固体吸热变为气体，属于</span><span style="max-width: 100%; font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 15px; letter-spacing: 2px; text-align: justify; white-space: normal; color: rgb(249, 110, 87); overflow-wrap: break-word !important;"><strong style="max-width: 100%; overflow-wrap: break-word !important;">升华</strong></span><span style="color: rgb(51, 51, 51); font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 15px; letter-spacing: 2px; text-align: justify; white-space: normal;">。</span><br></h3> <h1><b><font color="#39b54a">眼睛会说谎</font></b></h1> <h3><b><i><font color="#ff8a00">材料</font></i></b></h3> <h3><span style="color: rgb(51, 51, 51); font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 14px; letter-spacing: 0.544px; text-align: justify; white-space: normal;">白纸、剪刀、圆规</span><br></h3> <h3><b><i><font color="#ff8a00">步骤</font></i></b></h3> <h3><section class="" style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; word-wrap: break-word !important;"><section class="" style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; word-wrap: break-word !important;"></section></section></section></h3><section class="" style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; word-wrap: break-word !important;"><section class="" style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; word-wrap: break-word !important; font-size: 14px;"><p style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; word-wrap: break-word !important; clear: both; min-height: 1em;">第一步，在纸上画出一个圆弧。</h3></section></section></section> <h3><span style="color: rgb(51, 51, 51); font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 14px; letter-spacing: 0.544px; text-align: justify; white-space: normal;">第二步，用同一个圆心画出一个小一点的圆弧。</span><br></h3> <h3><span style="color: rgb(51, 51, 51); font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 14px; letter-spacing: 0.544px; text-align: justify; white-space: normal;">第三步，沿着笔迹把它剪下来。</span><br></h3> <p style="max-width: 100%; clear: both; min-height: 1em; color: rgb(51, 51, 51); font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; letter-spacing: 0.544px; text-align: justify; white-space: normal; overflow-wrap: break-word !important;">第四步，再剪出一个一样的圆弧然后标上编号</h3><h3><br></h3> <p style="max-width: 100%; clear: both; min-height: 1em; color: rgb(51, 51, 51); font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; letter-spacing: 0.544px; text-align: justify; white-space: normal; overflow-wrap: break-word !important;"><span style="max-width: 100%; font-size: 14px; overflow-wrap: break-word !important;">第五步，尝试不同摆法，然后观察，发现看到的圆弧是不一样长的</span></h3><h3><span style="max-width: 100%; font-size: 14px; overflow-wrap: break-word !important;"><br></span></h3> <h3><b><i><font color="#ff8a00">原理</font></i></b></h3> <p style="max-width: 100%; clear: both; min-height: 1em; color: rgb(51, 51, 51); font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 14px; letter-spacing: 0.544px; text-align: justify; white-space: normal; overflow-wrap: break-word !important;">这是一种视觉假象叫做错视，是指通过观察判断出来的结论和物体实际情况存在明显差异的现象。所以在这个实验中下方的圆弧看起来比上面的长，实际上两个一样长，你的大脑被你的眼睛欺骗了，是不是很神奇。</h3><h3><br></h3> <h1><b><font color="#39b54a">旧币换新币</font></b></h1> <h3><b><i><font color="#ff8a00">材料</font></i></b></h3> <h3><span style="color: rgb(51, 51, 51); font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 15px; letter-spacing: 2px; text-align: center; white-space: normal;">醋/盐/旧硬币</span><br></h3> <h3><b><i><font color="#ff8a00">步骤</font></i></b></h3> <p style="max-width: 100%; clear: both; min-height: 1em; color: rgb(51, 51, 51); font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 12px; letter-spacing: 2px; white-space: normal; text-align: center; line-height: 1.75em; overflow-wrap: break-word !important;"><span style="max-width: 100%; background-color: rgb(120, 172, 254); font-size: 15px; overflow-wrap: break-word !important;"><strong style="max-width: 100%; overflow-wrap: break-word !important;">-第一步-</strong></span></h3><p style="max-width: 100%; clear: both; min-height: 1em; color: rgb(51, 51, 51); font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 12px; letter-spacing: 2px; white-space: normal; text-align: center; line-height: 1.75em; overflow-wrap: break-word !important;"><span style="max-width: 100%; font-size: 15px; overflow-wrap: break-word !important;">将适量食盐倒入杯中</span></h3> <section class="" style="max-width: 100%; overflow-wrap: break-word !important;"><section class="" style="max-width: 100%; font-size: 12px; overflow-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; text-align: center; line-height: 1.75em; overflow-wrap: break-word !important;"><span style="max-width: 100%; background-color: rgb(120, 172, 254); font-size: 15px; overflow-wrap: break-word !important;"><strong style="max-width: 100%; overflow-wrap: break-word !important;">-第二步-<br style="max-width: 100%; overflow-wrap: break-word !important;"></strong></span></h3></section></section></section><section class="" style="max-width: 100%; overflow-wrap: break-word !important;"><section class="" style="max-width: 100%; text-align: center; font-size: 14px; overflow-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; line-height: 1.75em; overflow-wrap: break-word !important;"><span style="max-width: 100%; font-size: 15px; overflow-wrap: break-word !important;">再杯中加入一定量的醋</span></h3></section></section></section> <section class="" style="max-width: 100%; overflow-wrap: break-word !important;"><section class="" style="max-width: 100%; font-size: 12px; overflow-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; text-align: center; line-height: 1.75em; overflow-wrap: break-word !important;"><span style="max-width: 100%; background-color: rgb(120, 172, 254); font-size: 15px; overflow-wrap: break-word !important;"><strong style="max-width: 100%; overflow-wrap: break-word !important;">-第三步-<br style="max-width: 100%; overflow-wrap: break-word !important;"></strong></span></h3></section></section></section><section class="" style="max-width: 100%; transform: translate3d(0px, 0px, 0px); text-align: right; overflow-wrap: break-word !important;"><section class="" style="max-width: 100%; text-align: center; font-size: 14px; overflow-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; line-height: 1.75em; overflow-wrap: break-word !important;"><span style="max-width: 100%; font-size: 15px; overflow-wrap: break-word !important;">取一个小勺子将食盐与醋充分搅拌混合</span></h3></section></section></section> <section class="" style="max-width: 100%; overflow-wrap: break-word !important;"><section class="" style="max-width: 100%; font-size: 12px; overflow-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; text-align: center; line-height: 1.75em; overflow-wrap: break-word !important;"><span style="max-width: 100%; background-color: rgb(120, 172, 254); font-size: 15px; overflow-wrap: break-word !important;"><strong style="max-width: 100%; overflow-wrap: break-word !important;">-第四步-<br style="max-width: 100%; overflow-wrap: break-word !important;"></strong></span></h3></section></section></section><section class="" style="max-width: 100%; overflow-wrap: break-word !important;"><section class="" style="max-width: 100%; text-align: center; font-size: 14px; overflow-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; line-height: 1.75em; overflow-wrap: break-word !important;">将旧的5毛硬币放入食盐与醋的混合液中</h3><p style="max-width: 100%; clear: both; min-height: 1em; line-height: 1.75em; overflow-wrap: break-word !important;">轻轻揉搓</h3></section></section></section> <section class="" style="max-width: 100%; overflow-wrap: break-word !important;"><section class="" style="max-width: 100%; font-size: 12px; overflow-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; text-align: center; line-height: 1.75em; overflow-wrap: break-word !important;"><span style="max-width: 100%; background-color: rgb(120, 172, 254); font-size: 15px; overflow-wrap: break-word !important;"><strong style="max-width: 100%; overflow-wrap: break-word !important;">-第五步-<br style="max-width: 100%; overflow-wrap: break-word !important;"></strong></span></h3></section></section></section><section class="" style="max-width: 100%; transform: translate3d(0px, 0px, 0px); text-align: right; overflow-wrap: break-word !important;"><section class="" style="max-width: 100%; text-align: center; font-size: 14px; overflow-wrap: break-word !important;"><p style="max-width: 100%; clear: both; min-height: 1em; line-height: 1.75em; overflow-wrap: break-word !important;"><span style="max-width: 100%; font-size: 15px; overflow-wrap: break-word !important;">实验前<span style="max-width: 100%; overflow-wrap: break-word !important;">左边</span>的旧硬币</span></h3><p style="max-width: 100%; clear: both; min-height: 1em; line-height: 1.75em; overflow-wrap: break-word !important;"><span style="max-width: 100%; font-size: 15px; overflow-wrap: break-word !important;"><span style="max-width: 100%; overflow-wrap: break-word !important;">实验完后</span>变成右边新硬币</span></h3></section></section></section> <h3><b><i><font color="#ff8a00">原理</font></i></b></h3> <h3><span style="color: rgb(51, 51, 51); font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 15px; letter-spacing: 1px; text-align: justify; white-space: normal;">五角硬币是镀铜的，长时间在空气中，加上汗水、水蒸气等帮助，表面的镀铜就会变成氧化铜，变得黯淡无光。</span><br></h3> <p style="max-width: 100%; clear: both; min-height: 1em; color: rgb(51, 51, 51); font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; text-align: justify; white-space: normal; letter-spacing: 1px; overflow-wrap: break-word !important;"><span style="max-width: 100%; font-size: 15px; overflow-wrap: break-word !important;">放入醋中浸泡，醋中含有醋酸，可以和硬币上的氧化铜反应，就可以把表面脏东西溶解掉。</span></h3><p style="max-width: 100%; clear: both; min-height: 1em; color: rgb(51, 51, 51); font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; text-align: justify; white-space: normal; letter-spacing: 1px; overflow-wrap: break-word !important;"><span style="max-width: 100%; font-size: 15px; overflow-wrap: break-word !important;"></span><span style="font-size: 15px;">利用盐</span><span style="font-size: 15px;">的晶体结构，也可以清洗一些顽固污渍。</span></h3><p style="max-width: 100%; clear: both; min-height: 1em; color: rgb(51, 51, 51); font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; text-align: justify; white-space: normal; letter-spacing: 1px; overflow-wrap: break-word !important;"><span style="font-size: 15px;">盐和醋这对超强搭档除了可以让旧硬币变新硬币，还可以去掉锅上的顽固油渍，让旧锅变新锅。</span><br></h3> <p style="max-width: 100%; clear: both; min-height: 1em; color: rgb(51, 51, 51); font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; white-space: normal; letter-spacing: 1px; text-align: center; overflow-wrap: break-word !important;"><span style="max-width: 100%; font-size: 15px; overflow-wrap: break-word !important;">另外</span></h3><p style="max-width: 100%; clear: both; min-height: 1em; color: rgb(51, 51, 51); font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; white-space: normal; letter-spacing: 1px; text-align: center; overflow-wrap: break-word !important;"><span style="max-width: 100%; font-size: 15px; overflow-wrap: break-word !important;">冬天到了</span></h3><p style="max-width: 100%; clear: both; min-height: 1em; color: rgb(51, 51, 51); font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; white-space: normal; letter-spacing: 1px; text-align: center; overflow-wrap: break-word !important;"><span style="max-width: 100%; font-size: 15px; overflow-wrap: break-word !important;">在瘪菜里倒入盐和醋</span></h3><p style="max-width: 100%; clear: both; min-height: 1em; color: rgb(51, 51, 51); font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; white-space: normal; letter-spacing: 1px; text-align: center; overflow-wrap: break-word !important;"><span style="max-width: 100%; font-size: 15px; overflow-wrap: break-word !important;">还可以让瘪菜返鲜哦</span></h3> <h3> 小朋友们，这些科学小实验是不是既好玩又有趣呢！可以任意选择你喜欢的实验，快和爸爸妈妈一起试一试吧，发现更多的科学奥秘吧！</h3> <h3>策划：陈国景</h3><h3>编辑：谭硕</h3><h3>审阅：史文静</h3>