<div style="text-align: center;"><strong><font color="#ff0000">2014年小学科学六年级下册期末试卷</font></strong></div><br><br><span style=" font-weight:bold; ">一、填空题</span><span>（每空</span><span>2</span><span>分，共</span><span>20</span><span>分）。</span><span style=" font-weight:bold; "></span><br><br><span>1</span><span>、像白糖、</span><span style=" text-decoration:underline ; "> </span><span>这样的颗粒都是规则几何外形的固体，人们把这样的固体叫做</span><span style=" text-decoration:underline ; "> </span><span>。</span><br><br><span>2</span><span>、放大镜又叫凸透镜，它镜片的特点是中间</span><span style=" text-decoration:underline ; "> </span><span>，边缘</span><span style=" text-decoration:underline ; "> </span><span>。</span><br><br><span>3、大熊座的明显标志就是我们熟悉的由七颗亮星组成的</span><span style=" text-decoration:underline ; "> </span><span>。</span><br><br><span>4、天空中有一条闪亮的光带，就是我们常说的</span><span style=" text-decoration:underline ; "> </span><span>。</span><br><br><span>5</span><span>、生物体都是由</span><span style=" text-decoration:underline ; "> </span><span>组成的。</span><br><br><span>6</span><span>、月球地形的最大特征就是分布着许多</span><span style=" text-decoration:underline ; "> </span><span>。</span><br><br><span>7</span><span>、处理垃圾的常用方法是</span><span style=" text-decoration:underline ; "> </span><span>和</span><span> </span><span style=" text-decoration:underline ; "> </span><span>。</span><br><br><span style=" font-weight:bold; ">二、选择题（</span><span style=" font-family: 宋体;">把一个正确答案前的字母填在下列表格里，每题</span><span style=" font-family: ‘Times New Roman‘;">3</span><span style=" font-family: 宋体;">分，共</span><span style=" font-family: ‘Times New Roman‘;">30</span><span style=" font-family: 宋体;">分</span><span style=" font-weight:bold; ">）。</span><div><strong><br></strong>
<table width="100%" border="1"><tbody><tr><td><br>题 号<br></td><td><br>1<br></td><td><br>2<br></td><td><br>3<br></td><td><br>4<br></td><td><br>5<br></td><td><br>6<br></td><td><br>7<br></td><td><br>8<br></td><td><br>9<br></td><td><br>10<br></td></tr><tr><td><br>正确答案前的字母<br></td><td><br><o:p> </o:p><br></td><td><br><o:p> </o:p><br></td><td><br><o:p> </o:p><br></td><td><br><o:p> </o:p><br></td><td><br><o:p> </o:p><br></td><td><br><o:p> </o:p><br></td><td><br><o:p> </o:p><br></td><td><br><o:p> </o:p><br></td><td><br><o:p> </o:p><br></td><td><br><o:p> </o:p><br></td></tr></tbody></table>
<br><span>1</span><span>、把点燃的细木条伸进小苏打和白醋混合后的杯中，火焰会（</span><span> </span><span>）。</span><br><br><span>A</span><span>、马上熄灭</span><span> B</span><span>、继续燃烧</span><span> C</span><span>、一分钟后熄灭</span><br><br><span>2、农作物收割后留下大量秸秆，下列处理方法错误的是（ ）。</span><br><br><span>A、做饲料 B、 制沼气 C 、就地焚烧</span><br><br><span>3、下面放在（ ）里的铁钉，生锈的速度最快。</span><br><br><span>A、干燥空盘子 B、菜油盘 C、水盘子</span><br><br><span>4、很多使用过的物品都可以回收利用，世界通用的回收标志是（ ）。</span><br><br><img src="//www.szxuexiao.com/uploadimages/2014/0526/2014526212026.jpg?m=0.08174851140938699"><br><br><span>5</span><span>、下列物质中不属于晶体的是（</span><span> </span><span>）。</span><br><br><span>A</span><span>、食盐</span><span> B</span><span>、雪花</span><span> C</span><span>、玻璃</span><br><br><span>6</span><span>、光年是一个计量单位，它是用来计量（</span><span> </span><span>）的。</span><br><br><span>A</span><span>、时间</span><span> B</span><span>、速度</span><span> C</span><span>、距离</span><br><br><span>7</span><span>、表示日环食的示意图是（</span><span> </span><span>）。</span><br><br><img src="//www.szxuexiao.com/uploadimages/2014/0526/2014526212135.jpg?m=0.836516760289669"><br><br><span>8</span><span>、下列含有淀粉的食物是（</span><span> </span><span>）</span><br><br><span>A</span><span>、番薯</span><span> B</span><span>西红柿</span><span> C</span><span>、萝卜</span><span> </span><br><br><span>9</span><span>、化学变化伴随的现象有发光发热、产生沉淀物、产生气体和（</span><span> </span><span>）。</span><br><br><span>A</span><span>、改变大小</span><span> B</span><span>、改变状态</span><span> C</span><span>、改变颜色</span><br><br><span>10</span><span>、从源头上解决垃圾问题的有效方法是（</span><span> </span><span>）。</span><br><br><span>A</span><span>、使用一次性用品</span><span> B</span><span>、填埋 </span><span> C</span><span>、减少垃圾数量</span><br><br><span style=" font-weight:bold; ">三、判断题（</span><span>判断对或错，在</span><span style=" font-family: 宋体;">下列表格相应题号下打“√或×”，每题</span><span style=" font-family: ‘Times New Roman‘;">3</span><span style=" font-family: 宋体;">分，共</span><span style=" font-family: ‘Times New Roman‘;">27</span><span style=" font-family: 宋体;">分</span><span style=" font-weight:bold; ">）。</span></div><div><strong><br></strong>
<table width="100%" border="1"><tbody><tr><td><br>题 号<br></td><td><br>1<br></td><td><br>2<br></td><td><br>3<br></td><td><br>4<br></td><td><br>5<br></td><td><br>6<br></td><td><br>7<br></td><td><br>8<br></td><td><br>9<br></td></tr><tr><td><br>打“×或√”<br></td><td><br><o:p> </o:p><br></td><td><br><o:p> </o:p><br></td><td><br><o:p> </o:p><br></td><td><br><o:p> </o:p><br></td><td><br><o:p> </o:p><br></td><td><br><o:p> </o:p><br></td><td><br><o:p> </o:p><br></td><td><br><o:p> </o:p><br></td><td><br><o:p> </o:p><br></td></tr></tbody></table>
<br><span>1</span><span>、水变成水蒸气是化学变化。</span><span> </span><br><br><span>2</span><span>、淀粉遇到碘酒不会变色。</span><span> </span><br><br><span>3</span><span>、在放大镜下，我们发现不同昆虫的触角形状不同。</span><br><br><span>4</span><span>、我们吃饭的时候觉得米饭有点甜，是因为米饭本身是甜的。</span><span> </span><br><br><span>5</span><span>、地球的引力大约是月球的</span><span>1</span><span>∕</span><span>6</span><span>。</span><span> </span><br><br><span>6、距离地球最近的恒星是太阳。 </span><br><br><span>7、放大镜的</span><span>凸度越大，看到的视野越小。</span><span> </span><br><br><span>8、蜡烛燃烧完后，什么也没有留下。</span><br><br><span>9、电池是有毒垃圾，我们要把它埋得很深，就不会有危害了。</span><br><br><span style=" font-weight:bold; ">四、实验与探究题</span><span>（第</span><span>1</span><span>题</span><span>12</span><span>分，第</span><span>2</span><span>题</span><span>11</span><span>分，共</span><span>23</span><span>分）</span><span style=" font-family: 宋体;">。</span><span style=" font-weight:bold; "></span><br><br><span>（一）</span><span>对照下列月相图，选择正确农历日期填到相对应的括号里。</span><span style=" font-weight:bold; "></span><br><br><img src="//www.szxuexiao.com/uploadimages/2014/0526/2014526212319.jpg?m=0.6452837246470153"><br><br><span style=" font-family: 宋体;">（二）铁生锈是生活中的常见现象，全世界每年由于生锈造成损坏的钢铁约占世界年产量的四分之一。某科学小组进行了这样一次实验，如图所示：</span><span style=" font-family: 宋体;"></span><br><br><img src="//www.szxuexiao.com/uploadimages/2014/0526/201452621243.jpg?m=0.23423387436196208"><br><br><span style=" font-family: 宋体;">1、上图所示是用于研究“铁生锈和水与空气关系”的一个实验装置。</span><span style=" font-family: 宋体;"></span><br><br><span style=" font-family: 宋体;">2、甲试管中铁钉，能够和</span><span style="text-decoration: underline; font-family: 宋体;"> </span><span style=" font-family: 宋体;">与</span><span style="text-decoration: underline; font-family: 宋体;"> </span><span style=" font-family: 宋体;">充分接触； 乙试管中铁钉，只能和</span><span style="text-decoration: underline; font-family: 宋体;"> </span><span style=" font-family: 宋体;">接触，水面上的植物油能很好的防止 </span><span style="text-decoration: underline; font-family: 宋体;"> </span><span style=" font-family: 宋体;">溶解到水中；丙试管中铁钉，只能和</span><span style="text-decoration: underline; font-family: 宋体;"> </span><span style=" font-family: 宋体;">接触，因为试管中的干燥剂很好的吸收空气中的</span><span style="text-decoration: underline; font-family: 宋体;"> </span><span style=" font-family: 宋体;">。</span><span style="text-decoration: underline; font-family: 宋体;"></span><br><br><span style=" font-family: 宋体;">3、一星期后观察发现，</span><span style="text-decoration: underline; font-family: 宋体;"> </span><span style=" font-family: 宋体;">试管中的铁钉锈蚀比较严重，而</span><span style="text-decoration: underline; font-family: 宋体;"> </span><span style=" font-family: 宋体;">和</span><span style="text-decoration: underline; font-family: 宋体;"> </span><span style=" font-family: 宋体;">两个试管中的铁钉基本上没有生锈的现象。</span><span style=" font-family: 宋体;"></span><br><br><span style=" font-family: 宋体;">4、该实验证明，铁钉的生锈与</span><span style="text-decoration: underline; font-family: 宋体;"> </span><span style=" font-family: 宋体;">和</span><span style="text-decoration: underline; font-family: 宋体;"> </span><span style=" font-family: 宋体;">这两个因素都有关系。</span><span style=" font-family: 宋体;"></span><br><br></div>
六年级下