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8．小明同学要探究“种子的萌�需要水分 ．在设计对照实验时甲乙两组实验除一个条件不同外其他条件都应相同．不同的条件是 A．甲用20粒 Template






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tomski8．小明同学要探究“种子的萌�需要水分 ．在设计对照实验时甲乙两组实验除一个条件不同外其他条件都应相同．不同的条件是 a．甲用20粒 coloring
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小明同学要探究“种子的萌需要水分 ．在设计对照实验时甲乙两组实验除一个条件不同外其他条件都应相同．不同的条件是 A．甲用20粒种子 sketch template
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8．小明同学要探究“种子的萌需要水分 ．在设计对照实验时甲乙两组实验除一个条件不同外其他条件都应相同．不同的条件是 A．甲用20粒 sketch template
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小明同学要探究“种子的萌是否需要水分． 在设计对照实验时甲乙两组实验除一个条件不同外其他条件都应相同不同的条件是 A．甲组用小麦 sketch template
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为了探究“种子萌的环境条件 小明同学用黄豆种子分别采取四种不同的处理方法进行了对照实验实验结果如下表请根据表格分析回答问题瓶号处 sketch template
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为探究种子的萌条件小明做了以下四组实验结果只有第三组萌了请说明1种子萌的外界条件是一定的水分一定的水分充足的空气充足的空气 sketch template
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小明探究种子萌的环境条件时满足所有环境条件后现一些种子仍不能萌其原因是 A．没有适量的水 B．种子自身条件不具备 C．没有适宜的 sketch template
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题目小明同学对种子的萌非常好奇于是动手做了实验实验步骤如下1取2个广口瓶将脱脂棉花塞入瓶内2将10粒绿豆种子放在盛有水的 sketch template
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8．小明同学要探究“种子的萌需要水分 ．在设计对照实验时甲乙两组实验除一个条件不同外其他条件都应相同．不同的条件是 A．甲用20粒 sketch template
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为了探究环境温度对菜豆种子萌的影响小明同学设计了如下实验选用籽粒饱满均匀一致的菜豆种子60粒将种子随机平均分成3组分别放入三个垫 sketch template
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如图是李明同学所做的“探究种子萌的条件 的实验图据图作答1将A装置置于温暖的环境中B装置置于寒冷的环境中其中 号种子能够萌 sketch template
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小明同学要探究“种子的萌需要水分 在设计对照实验时甲乙两组实验除一个条件不同外其他条件都应相同不同的条件是 A甲用20粒种子乙 sketch template
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如图是李明同学所做的“探究种子萌的条件 的实验图据图作答1将A装置置于温暖的环境中B装置置于寒冷的环境中其中 号种子能够萌 sketch template
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为了探究“种子萌的外界条件 小明同学用黄豆种子进行了对照实验实验结果如下表．请根据表格内容分析并回答问题．瓶号处理方法种子萌情况11 sketch template
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如图所示是某生物兴趣小组的同学做了“探究种子萌的环境条件 实验据图回答1本探究实验中 号种子能萌25号种子在什么环境条件下有 sketch template
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小明同学在探究重力势能的大小与什么因素有关时，提出了如下猜想：猜想一：物体的重力势能与物体的质量有关猜想二：物体的重力势能与物体所在高度有关 sketch template
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小明同学要探究“种子的萌需要水分 ．在设计对照实验时甲乙两组实验除一个条件不同外其他条件都应相同．不同的条件是 A．甲用20粒种子 sketch template
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图为某同学设计的探究种子萌的实验．在AB两个烧杯中分别放入等量的清水在两根相同的玻璃棒上各捆上3完整的大豆种子并分别编号．将甲烧杯放 sketch template
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为了探究种子萌时物质的变化情况小阳将等量的正在萌的种子和煮熟冷却至室温的种子分别装在AB两个玻璃瓶中如图甲所示在温暖的地方放置一夜 sketch template
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为了探究环境温度对菜豆种子萌的影响小明同学设计了如下实验选用籽粒饱满均匀一致的菜豆种子60粒将种子随机平均分成3组分别放入三个垫 sketch template
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某兴趣小组同学设计了如图所示的“探究豌豆种子萌所需的外界条件 的实验种子萌的内部条件已具备1该实验中能够萌的是种子 2 sketch template
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为了研究种子萌所需的条件某同学设计了如下三个实验并把它们置于阳光下．请回答下列问题1要证明种子萌需要水应比较哪两个装置 2 sketch template
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题目市某校生物兴趣小组的同学做探究影响种子萌的环境条件实验时选取四个干净的锥形瓶编号为甲乙丙丁分别放入20粒完整有活力的 sketch template
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老师要同学们培养绿豆以观察种子萌的过程．有人问“怎样才能让绿豆快点芽 小苹说“可能要有水分及适当的光照和温度吧 于是小明用绿豆进行 sketch template
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题目下表为某生物小组同学用菜豆种子探究“种子萌的环境条件 实验他们探究的环境条件是 罐头瓶实验材料处理环境干燥的菜豆种子 浸清水 sketch template
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图为某同学设计的探究种子萌的实验．在AB两个烧杯中分别放入等量的清水在两根相同的玻璃棒上各捆上3完整的大豆种子并分别编号．将甲烧杯放 sketch template
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小明同学要探究“种子的萌需要水分 在设计对照实验时甲乙两组实验除一个条件不同外其他条件都应相同不同的条件是 A甲用20粒 sketch template
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林伟同学在探究种子吸作用时将萌种子装入一个密闭的实验装置中每隔一段时间测定其内部的温度和氧气含量并将结果绘制成曲线请据图分析回答 sketch template
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小明同学在探究影响浮力大小的因素时做了如图所示的实验．请你根据小明的实验探究回答下列问题1比较图AB说明浸在液体里的物体会受到浮力的 sketch template
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9． 在探究“物质的熔化特点”实验中， （1）如图甲所示，是小明根据实验数据作出的物质加热时温度随时间变化的图象．分析图象可知，知道该物质是 sketch template
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题目如图所示是班上几个同学送小明乘火车回家时的情景示意图．当火车徐徐开动时小明坐在窗边却看到几个同学渐渐后退去那么小明不可能 sketch template
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小明为了探究动能的大小与哪些因素有关他设计了如图所示的实验1让质量相同的两个小球沿同一光斜面分别从A处和B处开始下运动然后与水平 sketch template
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在“探究水对种子萌的影响 时AB两组同学分别进行了实验设计主要实验设计如图所示1本实验的变量是 ．2你认为AB两组同学的 sketch template
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酶的活性受温度pH等因素影响为验证这一结论小明同学设计实验如下说明蓝色的斐林试剂和麦芽糖在加热条件下能够生成砖红色的氧化亚铜沉淀 sketch template
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题目为探究重力势能的大小与什么因素有关小明同学利用带有四个铁钉的小方桌沙箱及质量不同的重物设计并进行了如图所示实验．1实验中通过 sketch template
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在探究海波熔化的规律时小红和小明分别设计了如下图所示的ab两种方案 1结合你的探究经历分析评价他们的方案 2某同学在处理数据 sketch template