七年级生物上册3.2.1探究种子萌发的环境条件水分素材(新版)新人教版.doc

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1探究种子萌发的环境条件水分探究种子萌发的环境条件水分方案设计实验报告实验目的 侧重训练设计对照实验的方法,体验控制单一变量。小组分工高效合作小组讨论设计合理的实验方案,及时汇报。1.小组讨论,记录员汇集小组意见,及时填写汇报单。2.实验员同时准确操作实验,做好分工和合作。3.小组组长陈述设计方案。4.组内组间进行讨论,修正设计方案,及时调整实验方案。分组实验汇报结果创新实践1.小组探究的环境条件是 ,即变量是 。2.设计的方案:条件 实验组 对照组水分温度空气萌发的情况3.实验员准确操作,完成实验。4.记录员随时记录种子萌发的情况,作好记录。5.组长统计,及时填好实验报告。得出结论表达交流得出结论: 。小组讨论,继续实验。

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