2014-2015学年青岛版小学三年级科学上册期末试题及答案

<div style="text-align: center;"><span style="font-family: 黑体;"><font color="#ff0000">2014-2015学年青岛版三年级科学上册期末试题及答案</font></span></div><span style="font-family: 黑体; "><o:p>&nbsp;</o:p></span><br> <table width="100%" border="1"><tbody><tr><td><br>题号<br></td><td><br>一<br></td><td><br>二<br></td><td><br>三<br></td><td><br>四<br></td><td><br>五<br></td><td><br>合计<br></td></tr><tr><td><br>分数<br></td><td><br>&nbsp;<br></td><td><br>&nbsp;<br></td><td><br>&nbsp;<br></td><td><br>&nbsp;<br></td><td><br>&nbsp;<br></td><td><br>&nbsp;<br></td></tr></tbody></table> <br><span style=" font-family:黑体; mso-font-kerning:; ">一、填空</span><span style=" font-family:黑体; mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">1、爱因斯坦说过:“提出一个问题往往比</span><span style=" text-decoration:underline; text-underline:single; mso-font-kerning:; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style=" mso-font-kerning:; ">一个问题更重要”。</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">2、在我们的感觉器官中,</span><span style=" text-decoration:underline; text-underline:single; mso-font-kerning:; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style=" mso-font-kerning:; ">从周围的世界中获得的信息最多。</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">3、我们常用的摄氏温度计,它的单位是</span><span style=" text-decoration:underline; text-underline:single; mso-font-kerning:; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style=" mso-font-kerning:; ">,用</span><span style=" text-decoration:underline; text-underline:single; mso-font-kerning:; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style=" mso-font-kerning:; ">来表示。</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">4、毛细现象中,水上升的高度与空隙有关系。空隙越小,水上升的越</span><span style=" text-decoration:underline; text-underline:single; mso-font-kerning:; ">&nbsp;&nbsp;&nbsp;&nbsp;</span><span style=" mso-font-kerning:; ">。</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">5、空气是由多种气体合成的,其中含量最多的是</span><span style=" text-decoration:underline; text-underline:single; mso-font-kerning:; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style=" mso-font-kerning:; ">。支持燃烧的是</span><span style=" text-decoration:underline; text-underline:single; mso-font-kerning:; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style=" mso-font-kerning:; ">。</span><span style=" mso-font-kerning:; "></span><br><br><span style=" font-family:黑体; mso-font-kerning:; ">二、判断</span><span style=" font-family:黑体; mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">1、&nbsp;</span><span style=" mso-font-kerning:; ">当风向仪的箭头指东时,表示此时刮的是西风。 (&nbsp;&nbsp;&nbsp;)</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">2、&nbsp;</span><span style=" mso-font-kerning:; ">空气是由多种气体混合而成的,其中氧气占空气质量的21%。(&nbsp;&nbsp;&nbsp;)</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">3、&nbsp;</span><span style=" mso-font-kerning:; ">世界上没有完全相同的两片树叶。 (&nbsp;&nbsp;&nbsp;)</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">4、&nbsp;</span><span style=" mso-font-kerning:; ">温度相同的两杯热水,同时放在同一个房间里,会同时降到室温。(&nbsp;&nbsp;&nbsp;)</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">5、&nbsp;</span><span style=" mso-font-kerning:; ">沉在水底的石块没受到水的浮力。 (&nbsp;&nbsp;&nbsp;)</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">6、&nbsp;</span><span style=" mso-font-kerning:; ">我们这个地方冬季经常刮北风。 &nbsp;(&nbsp;&nbsp;&nbsp;)</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">7、&nbsp;</span><span style=" mso-font-kerning:; ">大海是蓝色的,因此水是有颜色的。 (&nbsp;&nbsp;&nbsp;)</span><span style=" mso-font-kerning:; "></span><br><br><span style=" font-family:黑体; mso-font-kerning:; ">三、选择</span><br><br><span style=" mso-font-kerning:; ">1、下面物体不属于液体的是(&nbsp;&nbsp;&nbsp;)。</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">A、牛奶&nbsp;&nbsp;&nbsp;B</span>、<span style=" mso-font-kerning:; ">冰激凌&nbsp;&nbsp;&nbsp;&nbsp;C</span>、<span style=" mso-font-kerning:; ">水银&nbsp;&nbsp;&nbsp;&nbsp;D</span>、<span style=" mso-font-kerning:; ">雪碧</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">2、当红旗向东南飘动时,此时刮的是(&nbsp;&nbsp;&nbsp;&nbsp;)风。</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">A</span>、<span style=" mso-font-kerning:; ">东南&nbsp;&nbsp;&nbsp;&nbsp;B</span>、<span style=" mso-font-kerning:; ">西北&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C</span>、<span style=" mso-font-kerning:; ">西南&nbsp;&nbsp;&nbsp;&nbsp;D</span>、<span style=" mso-font-kerning:; ">东北</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">3、下列温度计不同类的是(&nbsp;&nbsp;&nbsp;&nbsp;)</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">A</span>、<span style=" mso-font-kerning:; ">红外线耳温计&nbsp;&nbsp;&nbsp;&nbsp;B</span>、<span style=" mso-font-kerning:; ">腋下体温计&nbsp;&nbsp;&nbsp;&nbsp;C</span>、<span style=" mso-font-kerning:; ">口腔温度计&nbsp;&nbsp;&nbsp;&nbsp;D</span>、<span style=" mso-font-kerning:; ">冰箱温度计</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">4、下列物品没利用不倒翁原理的是(&nbsp;&nbsp;&nbsp;)</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">A</span>、<span style=" mso-font-kerning:; ">地球仪&nbsp;&nbsp;&nbsp;&nbsp;B</span>、<span style=" mso-font-kerning:; ">台灯&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C</span>、<span style=" mso-font-kerning:; ">自行车&nbsp;&nbsp;&nbsp;&nbsp;D</span>、<span style=" mso-font-kerning:; ">储蓄罐</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">5、下面不是利用水的浮力的事件是(&nbsp;&nbsp;&nbsp;&nbsp;)</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">A</span>、<span style=" mso-font-kerning:; ">气球升到半空中&nbsp;&nbsp;&nbsp;B</span>、<span style=" mso-font-kerning:; ">曹冲称象&nbsp;&nbsp;&nbsp;&nbsp;C</span>、<span style=" mso-font-kerning:; ">捞铁牛&nbsp;&nbsp;D</span>、<span style=" mso-font-kerning:; ">水饺煮熟后浮上水面</span><span style=" mso-font-kerning:; "></span><br><br><span style=" font-family:黑体; mso-font-kerning:; ">四、科学探究</span><span style=" font-family:黑体; mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">猜想:</span><span style="font-family: 宋体; ">不倒翁推不倒的原因是:</span><span style="font-family: 宋体; text-decoration: underline; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style=" mso-font-kerning:; ">。</span><span style=" mso-font-kerning:; "></span><br><br><span style=" font-weight:bold; mso-font-kerning:; ">探究1.</span><span style=" mso-font-kerning:; ">探究不倒翁的外部构造。</span><br><br><span style=" mso-font-kerning:; ">回忆观察过的不倒翁,咱们一起来看看不倒翁的样子,注意观察:</span><div><span style=" mso-font-kerning:; "></span><br> <table width="100%" border="1"><tbody><tr><td><br>不倒翁<br></td><td><br>底部特征<br></td><td><br>底部共同特点<br></td></tr><tr><td><br>1号<br></td><td><br>&nbsp;<br></td><td rowspan="2"><br>&nbsp;<br></td></tr><tr><td><br>2号<br></td><td><br>&nbsp;<br></td></tr></tbody></table> <br><span style=" font-weight:bold; mso-font-kerning:; ">探究2.</span><span style=" mso-font-kerning:; ">探究不倒翁的内部构造。</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">不倒翁不倒还有其它的原因,但从外观上我们看不出来,怎么办?这就需要</span><span style=" mso-font-kerning:; ">把它拆开来看看。这就是科学上常用的一种研究方法——</span><span style=" text-decoration:underline; text-underline:single; mso-font-kerning:; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style=" mso-font-kerning:; ">。</span><div><span style=" mso-font-kerning:; "></span><br> <table width="100%" border="1"><tbody><tr><td><br>不倒翁<br></td><td><br>拆开后内部情况<br></td><td><br>内部共同点<br></td></tr><tr><td><br>1号<br></td><td><br>&nbsp;<br></td><td rowspan="2"><br>&nbsp;<br></td></tr><tr><td><br>2号<br></td><td><br>&nbsp;<br></td></tr></tbody></table> <br><span style=" mso-font-kerning:; ">通过以上探究发现:</span><span style=" mso-font-kerning:; ">不倒翁不倒的原因是:</span><span style=" text-decoration:underline; text-underline:single; mso-font-kerning:; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style=" mso-font-kerning:; ">,</span><span style=" text-decoration:underline; text-underline:single; mso-font-kerning:; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style=" mso-font-kerning:; ">。</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">生活中像不倒翁那样不容易倒的物体。</span><span style=" mso-font-kerning:; ">如:</span><span style=" text-decoration:underline; text-underline:single; mso-font-kerning:; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style=" mso-font-kerning:; ">。</span><span style=" mso-font-kerning:; "></span><br><br><span style=" font-family:黑体; mso-font-kerning:; ">五、科学与生活</span><br><br><span style=" mso-font-kerning:; ">一整块橡皮泥会沉到水底,但有一个同学能使橡皮泥浮在水面上,这是什么原因呢?请写出你的猜想和研究方案</span><span style=" mso-font-kerning:; "></span><br><br><br><div style="text-align: center;"><strong><font color="#38761d">2014-2015学年青岛版小学三年级科学上册期末试题答案</font></strong></div><br><strong><span style=" mso-font-kerning:; ">一、填空(</span><span style=" font-family:黑体; mso-font-kerning:; ">14分)</span></strong><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">1</span><span style=" mso-font-kerning:; ">、解决</span><span style=" mso-font-kerning:; ">&nbsp;&nbsp;2</span><span style=" mso-font-kerning:; ">、</span><span style=" mso-font-kerning:; ">&nbsp;&nbsp;</span><span style=" mso-font-kerning:; ">眼睛</span><span style=" mso-font-kerning:; ">3</span><span style=" mso-font-kerning:; ">、</span><span style=" mso-font-kerning:; ">&nbsp;</span><span style=" mso-font-kerning:; ">摄氏度</span><span style=" mso-font-kerning:; ">&nbsp;&nbsp;</span><span style=" mso-font-kerning:; ">℃&nbsp;&nbsp;</span><span style=" mso-font-kerning:; ">4</span><span style=" mso-font-kerning:; ">、高</span><span style=" mso-font-kerning:; ">5</span><span style=" mso-font-kerning:; ">、氮气</span><span style=" mso-font-kerning:; ">&nbsp;&nbsp;&nbsp;&nbsp;</span><span style=" mso-font-kerning:; ">氧气</span><span style=" mso-font-kerning:; "></span><br><br><strong><span style=" mso-font-kerning:; ">二、判断(</span><span style=" font-family:黑体; mso-font-kerning:; ">7分)</span></strong><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">1</span><span style=" mso-font-kerning:; ">、×</span><span style=" mso-font-kerning:; ">2</span><span style=" mso-font-kerning:; ">、×&nbsp;&nbsp;</span><span style=" mso-font-kerning:; ">3</span><span style=" mso-font-kerning:; ">、√&nbsp;</span><span style=" mso-font-kerning:; ">4</span><span style=" mso-font-kerning:; ">、×&nbsp;</span><span style=" mso-font-kerning:; ">5</span><span style=" mso-font-kerning:; ">、×&nbsp;&nbsp;</span><span style=" mso-font-kerning:; ">6</span><span style=" mso-font-kerning:; ">、√&nbsp;&nbsp;</span><span style=" mso-font-kerning:; ">7</span><span style=" mso-font-kerning:; ">、×</span><span style=" mso-font-kerning:; "></span><br><br><strong><span style=" mso-font-kerning:; ">三、选择(</span><span style=" font-family:黑体; mso-font-kerning:; ">10分)</span></strong><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">1</span><span style=" mso-font-kerning:; ">、</span><span style=" mso-font-kerning:; ">B</span><span style=" mso-font-kerning:; ">&nbsp;&nbsp;</span><span style=" mso-font-kerning:; ">2</span><span style=" mso-font-kerning:; ">、</span><span style=" mso-font-kerning:; ">B</span><span style=" mso-font-kerning:; ">&nbsp;&nbsp;</span><span style=" mso-font-kerning:; ">3</span><span style=" mso-font-kerning:; ">、</span><span style=" mso-font-kerning:; ">D</span><span style=" mso-font-kerning:; ">&nbsp;&nbsp;</span><span style=" mso-font-kerning:; ">4</span><span style=" mso-font-kerning:; ">、</span><span style=" mso-font-kerning:; ">C</span><span style=" mso-font-kerning:; ">&nbsp;&nbsp;</span><span style=" mso-font-kerning:; ">5</span><span style=" mso-font-kerning:; ">、</span><span style=" mso-font-kerning:; ">A</span><span style=" mso-font-kerning:; "></span><br><br><span style=" font-family:黑体; mso-font-kerning:; ">四、科学探究(每空一分,11分)</span><span style=" font-family:黑体; mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">猜想:</span><span style="font-family: 宋体; ">不倒翁推不倒的原因是:</span><span style="font-family: 宋体; text-decoration: underline; ">&nbsp;底部是半球形,上轻下重&nbsp;&nbsp;&nbsp;</span><span style=" mso-font-kerning:; ">。</span><span style=" mso-font-kerning:; "></span><br><br><span style=" font-weight:bold; mso-font-kerning:; ">探究1.</span><span style=" mso-font-kerning:; ">探究不倒翁的外部构造。</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">回忆观察过的不倒翁,咱们一起来看看不倒翁的样子,注意观察:</span></div><div><span style=" mso-font-kerning:; "></span><br> <table width="100%" border="1"><tbody><tr><td><br>不倒翁<br></td><td><br>底部特征<br></td><td><br>底部共同特点<br></td></tr><tr><td><br>1号<br></td><td><br>半球形(球形)<br></td><td rowspan="2"><br>半球形(球形)<br></td></tr><tr><td><br>2号<br></td><td><br>半球形(球形)<br></td></tr></tbody></table> <br><span style=" font-weight:bold; mso-font-kerning:; ">探究2.</span><span style=" mso-font-kerning:; ">探究不倒翁的内部构造。</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">不倒翁不倒还有其它的原因,但从外观上我们看不出来,怎么办?这就需要</span><span style=" mso-font-kerning:; ">把它拆开来看看。这就是科学上常用的一种研究方法——</span><span style=" text-decoration:underline; text-underline:single; mso-font-kerning:; ">&nbsp;&nbsp;解暗箱&nbsp;&nbsp;</span><span style=" mso-font-kerning:; ">。</span></div><div><span style=" mso-font-kerning:; "></span><br> <table width="100%" border="1"><tbody><tr><td><br>不倒翁<br></td><td><br>拆开后内部情况<br></td><td><br>内部共同点<br></td></tr><tr><td><br>1号<br></td><td><br>上面轻,下面重(下面有重的铁块)<br></td><td rowspan="2"><br>上轻下重<br></td></tr><tr><td><br>2号<br></td><td><br>上面轻,下面重(下面有重的铁块)<br></td></tr></tbody></table> <br><span style=" mso-font-kerning:; ">通过以上探究发现:</span><span style=" mso-font-kerning:; ">不倒翁不倒的原因是:</span><span style=" text-decoration:underline; text-underline:single; mso-font-kerning:; ">底部是半球形</span><span style=" mso-font-kerning:; ">,</span><span style=" text-decoration:underline; text-underline:single; mso-font-kerning:; ">上轻下重&nbsp;&nbsp;</span><span style=" mso-font-kerning:; ">。</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">生活中像不倒翁那样不容易倒的物体。</span><span style=" mso-font-kerning:; ">如:</span><span style=" text-decoration:underline; text-underline:single; mso-font-kerning:; ">&nbsp;&nbsp;&nbsp;台灯,台式电话等&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style=" mso-font-kerning:; ">。</span><span style=" mso-font-kerning:; "></span><br><br><span style=" font-family:黑体; mso-font-kerning:; ">五、科学与生活(8分)</span><span style=" font-family:黑体; mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">参考答案:我的猜想:整块橡皮泥放到水里容易沉到水底。</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">研究方案:可以把橡皮泥做成了船形或者碗形、盘形,这样同重量的橡皮泥与水的接触面增大了,受到水里浮力增大了,就不会沉到水底了!(根据学生设计探究方案的合理性和科学性酌情打分。)</span><span style=" mso-font-kerning:; "></span><br><span style=" mso-font-kerning:; "><o:p>&nbsp;</o:p></span><br></div></div>