《五年级科学上册种子发芽实验3课件教科版》由会员分享，可在线阅读，更多相关《五年级科学上册种子发芽实验3课件教科版（11页珍藏版）》请在金锄头文库上搜索。
1、种子发芽实验教科版五年级上册科学Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.交 流 汇 报1.我做的是绿豆种子发芽需要（ ）的实验。2.我的绿豆种子发芽情况是Evaluation on
2、ly.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.整理统计思考： （1）实验带给我们的信息有哪些？ （2）实验结果和实验前的猜测是否一致？说明了什么？ （3）绿豆发芽必需的条件是什么？收集相同实验小组的实验信息，填写
3、统计表。 种子总总数量已发发芽量未发发芽量我们们的解释释实验组实验组对对照组组绿豆种子发芽是否需要（ ）的实验记录Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.看看老师做的实验记录，你能
4、得出什么结论Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.看看老师做的实验记录，你能得出什么结论Evaluation only.Evaluation only. Created with
5、 Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.看看老师做的实验记录，你能得出什么结论Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.
6、Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.播种四天后 各组种子缺水低温强光背阴黑暗Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Pro
7、file 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.绿豆种子发芽的必需条件 ：温度、水分和空气我们的结论适宜的温度充足的水分充足的空气Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-
8、2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.参考资料： 种子发芽的基本条件一是温度。种子萌发的最低温度为6-7，12- 14能正常发芽，最适温度为20-25，最高为 35。二是水分。一般需吸收相当于种子自身风干重的 120-140%的水分才能萌发。三是充足的氧气。Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5
9、 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.挑战任务： 种植绿豆芽1.把绿豆芽种植在花盆中，放到适合的地方，让 绿豆芽生长一段时间。 2.预测哪些条件会影响绿豆芽的生长。 3.对绿豆芽的生长做观察记录。（作业本3面）Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Sli
10、des for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.
