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随着新课改的不断深入,科学探究问题备受关注.它综合性强、题目设计巧妙、情境新颖,又渗透着新理念、新思维和新方法等特点,故探究性问题成为中考热点。而其中有关金属锈蚀问题的探究更是热点之一.下面结合几道考题作一解析,供大家参考.一、对铁锈蚀条件的探究例1 课本实验中,铁生锈所需要时间较长,某实验小组设计如图所示的改进实验.
With the continuous deepening of the new curriculum reform, the issue of scientific inquiry has attracted much attention. It has strong comprehensiveness, ingenious title design, novel situations, and new features such as new ideas, new thinking, and new methods. Therefore, inquiry questions have become hot topics in the examination. Among them, the investigation of the metal corrosion problem is one of the hot spots. The following analysis is based on a few examination questions for your reference. First, the exploration of iron corrosion conditions Example 1 Textbook experiment, iron rust needs a long time, An experiment team designed the improved experiment as shown in the figure.