让科学融入生活|小记者开启一堂精彩纷呈的科学实验课
<p style="text-align: center;margin-bottom: 0em;"><br/></p><p><span style="font-size: 10.5pt;font-family: 宋体;"> </span><span style="font-size: 16px;font-family: 宋体;"> 生活中，都有哪些有趣的科学现象呢？6月19日，2022年“我的祖国”为主题的沙画科普活动在九江市森林博物馆举行。</span></p><p style="text-align: center;margin-bottom: 0em;"></p><p style="text-align: center;margin-bottom: 0em;"></p><p style="text-align: center;margin-bottom: 0em;"></p><p><span style="font-size: 16px;font-family: 宋体;"> 当日上午，小记者们在家长的陪同下来到森林博物馆的自然课堂里，他们正期待着一堂精彩纷呈、妙趣横生的科学实验课。首先由沙画老师为大家科普沙画知识，只见老师将一把细沙，透过指缝，通过一双巧手一撒、一抹、一漏、一勾、一点、一捏将沙子均匀地洒在特殊的画板上，然后用拇指与食指在沙子上勾勒出人、鸟巢、山水、长城与国旗，一幅幅精美的沙画令小记者们直呼了不起！沙画是集绘画、表演、音乐、文学为一体的舞台艺术，沙画的制作不用构图，不受画样的限制，可以充分发挥自己的想象力，制作出绚丽多彩的画面。</span></p><p><span style="font-family: 宋体;font-size: 16px;"><o:p> </o:p></span></p><p style="text-align: center;margin-bottom: 0em;"></p><p style="text-align: center;margin-bottom: 0em;"></p><p><span style="font-size: 16px;font-family: 宋体;"> 随后，科学老师为小记者们演示了气球风火轮、化学红绿灯、铁签穿气球、变大变小腾云驾雾等多个科学小实验，并讲解了“伯努利定理”是由不可压、理想流体沿流管作定常流动，流动速度增加，流体的静压将减小；反之，流动速度减小，流体的静压将增加。其中，一个“腾云驾雾”的科学小实验引起了孩子们热烈的掌声与喝彩声。它是利用100摄氏度的开水和零下196摄氏度的液氮碰撞，当满盆的雾气四散开来时，就形成了腾云驾雾的梦幻效果。</span></p><p style="text-align: center;margin-bottom: 0em;"></p><p style="text-align: center;margin-bottom: 0em;"></p><p style="text-align: center;margin-bottom: 0em;"></p><p><span style="font-size: 16px;font-family: 宋体;">据了解，此次活动由市科协、市科技馆、市小记者协会主办，市森林博物馆、坚果科学实验室承办的一种融操作性、思考性、变化性、趣味性于一体的活动，旨在引导孩子们进行科学探究，激发科学热情，感受科学魅力，提高实践能力，让科学融入日常生活。</span><span style="font-size: 16px;font-family: 宋体;">（袁海飞</span><span style="font-size: 16px;font-family: 宋体;"> </span><span style="font-size: 16px;font-family: 宋体;">文/摄）</span></p><p><span style="font-size: 16px;"><span style="font-size: 16px;margin: 0px;padding: 0px;color: rgb(51, 51, 51);font-family: 宋体;font-style: normal;font-variant-ligatures: normal;font-variant-caps: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: justify;text-indent: 0px;text-transform: none;widows: 2;word-spacing: 0px;-webkit-text-stroke-width: 0px;text-decoration-style: initial;text-decoration-color: initial;"></span></span></p><p style="text-align: center;margin-bottom: 0em;"></p><p><span style="font-size: 16px;"><span style="font-size: 16px;margin: 0px;padding: 0px;color: rgb(51, 51, 51);font-family: 宋体;font-style: normal;font-variant-ligatures: normal;font-variant-caps: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: justify;text-indent: 0px;text-transform: none;widows: 2;word-spacing: 0px;-webkit-text-stroke-width: 0px;text-decoration-style: initial;text-decoration-color: initial;"></span></span></p><p><span style="font-size: 16px;"><span style="font-size: 16px;margin: 0px;padding: 0px;color: rgb(51, 51, 51);font-family: 宋体;font-style: normal;font-variant-ligatures: normal;font-variant-caps: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: justify;text-indent: 0px;text-transform: 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