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小红同学在探究种子萌�需要的外界条件时分别在甲乙两个铺有湿纸巾的盘子内均匀放入10粒大小相�的绿豆种子然后将甲乙两个盘子分别放在“有光 Template






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tomski小红同学在探究种子萌�需要的外界条件时分别在甲乙两个铺有湿纸巾的盘子内均匀放入10粒大小相�的绿豆种子然后将甲乙两个盘子分别放在“有光 coloring
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某同学在探究种子萌的外界环境条件时设计了如下实验取40粒同样的绿豆种子分成4等份在4个同样大小的洁净的空罐头瓶上分别贴上写有12 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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小红同学在探究种子萌需要的外界条件时分别在甲乙两个铺有湿纸巾的盘子内均匀放入10粒大小相的绿豆种子然后将甲乙两个盘子分别放在“有光 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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某校生物兴趣小组探究“种子萌所需要的外界条件 时做了如下实验1提出问题水对种子的萌是否有影响2作出假设 3设计实验 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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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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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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小悦在阳台种花生她把10粒种子埋在湿润松软的土壤内另10粒相同的种子放在同一土壤表面结果种子都萌了．这说明花生种子萌不需要 A sketch template
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题目如图甲是小明小红两名同学分别探究“水的沸腾 的实验装置他们所用的器材规格完全相同1安装实验器材时应按照 的顺序进行选填 sketch template
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如图为某同学设计的探究种子萌的外界条件的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颗同种的种子并分别编号 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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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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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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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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某学习小组在探究种子萌时是否进行吸作用做了如下实验取甲乙两个相同大小的广口瓶瓶内分别放入等量的大豆种子甲瓶内放入萌的种子乙 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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如图表示“探究种子萌的环境条件 的实验请分析回答问题横线里填文字内填图中种子编号．提出问题种子萌需要的外界条件是什么作出 sketch template
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在做“探究蒸快慢与哪些因素有关 的实验时同学们猜想影响蒸快慢的因素可能有液体的温度液体的表面积液体的种类及液体表面上方空气的流速等 sketch template
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小红同学在做“探究平面镜成像 的实验时将一块玻璃板竖直架在水平台上台面平放一把刻度尺与玻璃板垂直再取两段完全相同的蜡烛A和B点燃玻璃板 sketch template
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某校兴趣小组的同学在探究“种子萌需要的环境 条件 时设计了如下实验步骤 取3个相同的无色玻璃瓶分别贴上写有甲乙丙的标签瓶底各铺 sketch template
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小娟同学为了探究种子萌需要水分和氧气用三粒菜豆种子ABC为主要材料设计了如图所示的实验．该实验中存在的问题是 A．A和B可形成 sketch template
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某中学生物兴趣小组为了探究大豆种子萌是否需要某种环境条件制订了如下表所示的探究计划分析下表可知该兴趣小组准备探究的问题是种子的萌 sketch template
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在“他那就种子萌的外部条件 的探究活动中小明同学用菜豆种子分别采用不同的处理方法如图是供一组实验计划示意图按照这个计划示意图进行了对照 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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为了探究菜豆种子萌所需的条件某同学设计了如图的实验说明ABC三个装置都放在光照条件下1菜豆种子萌时先吸收水分 中的营养 sketch template
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为了探究环境温度对菜豆种子萌的影响小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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们知道种子的萌与外界条件有密切的关系．下图是探究植物种子萌条件的实验装置烧杯中装有清水一根玻璃棒斜放在烧杯中．缚在玻璃棒上的AB 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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与其它绿色开花植物一样菜豆的一生也要经历从种子萌到长成新植株再到开花结果的生期．1菜豆种子的萌除了保证胚是完整的活的度过 sketch template
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为了探究液体的压强与哪些因素有关小红同学提出了一些猜想与假设并进行了一些相关实验进行验证．下列A．B．C是小红同学提出的三个猜想题中 sketch template
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小琴同学假日在植物园中游玩非常喜欢下列植物想将这些植物的种子带回家去种植．她不可能得到种子的是 A苏铁B铁线蕨C银杏D苹果 sketch template
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在探究光学规律时做了以下实验．1在探究光的直线传播规律时一般情况下光传播的路径是看不到的你在实验中显示光路的方法是采用红色激光束 sketch template
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如图甲为测定种子吸方式的两个装置图乙和图丙为某同学“探究氧气浓度对某种子细胞吸的影响 实验结果的不同分析模式．回答有关问题1甲图中 sketch template