苏教版小学科学四年级上册《热往哪里传》一课关于热在水中往哪里传的实验,书本上的要求是将水装入试管穴大约一半雪,将其放在酒精灯上加热水的上半部分,当上半部分烧开的时候,下半部分水的温度还没有太大的变化,然后让学生用温度计去测一测。在测量的过程中,由于测量冷水的时 The fourth edition of the Sujiao Primary School Science Yearbook “hot where to pass” a lesson on the heat in the water where the experiment, the requirements of the book is to water into the test tube about half of the snow, put it on the alcohol lamp heating water The upper half, when the upper part of the boil, the temperature of the water in the lower part has not changed much, and then let the students use a thermometer to measure a test. In the measurement process, due to the measurement of cold water