题目内容
书面表达
根据下面的提示,写一篇“观察水的沸腾”的实验报告(100词左右)
实验目的:
1.观察水沸腾时的温度。
2.观察水沸腾过程中的现象。
器材:烧杯(beaker),水,温度计(thermometer),酒精灯(ethanol light),火柴。
步骤:
1.在烧杯里盛100 g左右的水。
2.在水中放入温度计。
3.加热杯中的水,并观察温度计的示数和水的情况。
结果:当温度达到100℃时,水面出现大量气泡。
结论:1.水在100℃时开始沸腾。
2.水在沸腾过程中有大量气泡产生。
解析:
Aim:1.To find out the temperature when water is boiling;
2.To find out what happens when water is boiling.
Apparatus:beaker; water; thermometer; ethanol light; beaker holder; match.
Method:
1.Fill about 100 g water in the beaker.
2.Put a thermometer in the water.
3.Heat the water in the beaker, and watch the readings of the thermometer.
Result:Bubbles begin to appear when the temperature reaches 100 centigrade.
Conclusion:
1.The water boils when the temperature reaches 100 centigrade.
2.A lot of bubbles appear during the boiling.