生活中的科学知识·生活中的科学知识·<p class="MsoNormal" style="margin-top:0.0pt; margin-right:0.0pt;margin-bottom:0.0pt;margin-left:0.0pt;text-indent:0.0pt;text-align:justify;text-justify:inter-ideograph;line-height:200%;page-break-before:auto;mso-pagination:none;page-break-after:auto;mso-outline-level:body-text;mso-hyphenate:auto;layout-grid-mode:both;mso-layout-grid-align:auto;punctuation-trim:none;punctuation-wrap:hanging;text-autospace:ideograph-numeric ideograph-other;mso-vertical-align-alt:auto;word-break:normal;direction:ltr">厨房中的科学知识<p class="MsoNormal" style="margin-top:0.0pt; margin-right:0.0pt;margin-bottom:0.0pt;margin-left:0.0pt;text-indent:0.0pt;text-align:justify;text-justify:inter-ideograph;line-height:200%;page-break-before:auto;mso-pagination:none;page-break-after:auto;mso-outline-level:body-text;mso-hyphenate:auto;layout-grid-mode:both;mso-layout-grid-align:auto;punctuation-trim:none;punctuation-wrap:hanging;text-autospace:ideograph-numeric ideograph-other;mso-vertical-align-alt:auto;word-break:normal;direction:ltr"><p class="MsoNormal" style="margin-top:0.0pt; margin-right:0.0pt;margin-bottom:0.0pt;margin-left:0.0pt;text-indent:0.0pt;text-align:justify;text-justify:inter-ideograph;line-height:200%;page-break-before:auto;mso-pagination:none;page-break-after:auto;mso-outline-level:body-text;mso-hyphenate:auto;layout-grid-mode:both;mso-layout-grid-align:auto;punctuation-trim:none;punctuation-wrap:hanging;text-autospace:ideograph-numeric ideograph-other;mso-vertical-align-alt:auto;word-break:normal;direction:ltr">我们认真观察厨房里燃料、炊具，做饭、做菜等全部过程，回忆厨房中发生的一系列变化，会看到有关的物理现象。

利用科学知识解释这些现象如下：<p class="MsoNormal" style="margin-top:0.0pt;margin-right:0.0pt;margin-bottom:0.0pt;margin-left:0.0pt;text-indent:0.0pt;text-align:justify;text-justify:inter-ideograph;line-height:200%;page-break-before:auto;mso-pagination:none;page-break-after:auto;mso-outline-level:body-text;mso-hyphenate:auto;layout-grid-mode:both;mso-layout-grid-align:auto;punctuation-trim:none;text-autospace:ideograph-numeric ideograph-other; mso-line-break-override:none;mso-vertical-align-alt:auto;word-break:normal;direction:ltr">一、与电学知识有关的现象<p class="MsoNormal" style="margin-top:0.0pt; margin-right:0.0pt;margin-bottom:0.0pt;margin-left:0.0pt;text-indent:0.0pt;text-align:justify;text-justify:inter-ideograph;line-height:200%;page-break-before:auto;mso-pagination:none;page-break-after:auto;mso-outline-level:body-text;mso-hyphenate:auto;layout-grid-mode:both;mso-layout-grid-align:auto;punctuation-trim:none;text-autospace:ideograph-numeric ideograph-other;mso-line-break-override:none;mso-vertical-align-alt:auto;word-break:normal;direction:ltr">1、电饭堡煮饭、电炒锅煮菜、电水壶烧开水是利用电能转化为内能，都是利用热传递煮饭、煮菜、烧开水的。

<p class="MsoNormal" style="margin-top:0.0pt;margin-right:0.0pt;margin-bottom:0.0pt;margin-left:0.0pt;text-indent:0.0pt;text-align:justify;text-justify:inter-ideograph;line-height:200%;page-break-before:auto;mso-pagination:none;page-break-after:auto;mso-outline-level:body-text;mso-hyphenate:auto;layout-grid-mode:both;mso-layout-grid-align:auto;punctuation-trim:none;punctuation-wrap:hanging;text-autospace:ideograph-numeric ideograph-other;mso-line-break-override:none;mso-vertical-align-alt:auto;word-break:normal;direction:ltr">2、排气扇（抽油烟机）利用电能转化为机械能，利用空气对流进行空气变换。

<p class="MsoNormal" style="margin-top:0.0pt;margin-right:0.0pt;margin-bottom:0.0pt;margin-left:0.0pt;text-indent:0.0pt;text-align:justify;text-justify:inter-ideograph;line-height:200%;page-break-before:auto;mso-pagination:none;page-break-after:auto;mso-outline-level:body-text;mso-hyphenate:auto;layout-grid-mode:both;mso-layout-grid-align:auto;punctuation-trim:none;punctuation-wrap:hanging;text-autospace:ideograph-numeric ideograph-other;mso-line-break-override:none;mso-vertical-align-alt:auto;word-break:normal;direction:ltr">3、电饭煲、电炒锅、电水壶的三脚插头，插入三孔插座，防止用电器漏电和触电事故的发生。

<p class="MsoNormal" style="margin-top:0.0pt;margin-right:0.0pt;margin-bottom:0.0pt;margin-left:0.0pt;text-indent:0.0pt;text-align:justify;text-justify:inter-ideograph;line-height:200%;page-break-before:auto;mso-pagination:none;page-break-after:auto;mso-outline-level:body-text;mso-hyphenate:auto;layout-grid-mode:both;mso-layout-grid-align:auto;punctuation-trim:none;punctuation-wrap:hanging;text-autospace:ideograph-numeric ideograph-other;mso-line-break-override:none;mso-vertical-align-alt:auto;word-break:normal;direction:ltr">4、微波炉加热均匀，热效率高，卫生无污染。