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四年级下册科学期末复习卷

四年级下册科学期末复习卷

04-03 23:42:51  浏览次数:677次  栏目:四年级科学试卷
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                                                                   (4分)

(4)实验结果发现                                                        

                                                                   。(2分)

2、把肉放在水里,空气里,哪个馊得快?请你设计一下它的实验方案?

                                                                            

                                                                          

                                                                           

                                                                           

                                                                           

                                                                           

                                                                           

                                                                           

                                                                           


二、填图题                      

1、写出油菜花各部分的名称。

2、用导线把下图中的电池和灯泡连起来,并使第一张图中的灯泡比第二张图中的灯泡亮。

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