1.5 科学探究（课件 13张ppt）

课件13张PPT。1.5科学探究m.news.999ask.com/article/170616.html
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mipzyy.yilianmeiti.com/keshi_18_130000_0_0.html目 录生活中的探究科学家的探究我们一起来探究控制变量法生活中的探究停电了！！！ 如果在一个黑漆漆的晚上，你家里的电灯一下子全都熄灭了，你想到的第一件事情是什么？
你会如何去判断电灯熄灭的原因呢？在探究问题时，我们一般会先假设几种可能的原因，再对每一种原因可能产生的结果进一步探究，直到找到真正的原因，采取相应的措施。
生活中处处都有探究，像是空调坏了的原因，自行车胎破了的原因，房顶漏水的原因······都是通过探究的方式一步一步得出结论的。
科学家的探究梳理提出问题建立猜想或假设制定探究方案获取事实与证据检验假设表达与交流修改假设，重新实验研究方法列举 观察法、实验法、归纳法、演绎法、等效法、类比法、比较法等。
比较法实验组对照组进行实验处理不进行实验处理我们一起来探究一、根据人脚印的长度判断人的身高书P29二、盒子里面有什么控制变量法控制变量法 控制变量法，就是当一个科学量受到多个因素的影响和制约时，为了明确这个量与其中某个因素的关系，往往需要先控制其他的几个因素不影响被研究量的方法。