Limitations and Improvement of “Candle Flame Division” Experiment
CHEN Xue-Fei1, QIAN Yang-Yi2, CHEN Bo-Yin3, TANG Wen-Xiu2, WANG Li-Xin4
1. Foshan No.1 Mile School, Foshan 528000, China;
2. Institute of Chemistry Eucation an Resources, South ChinaNormal University, Guangzhou 510006, China;
3. Guangzhou No.1 Mile School, Guangzhou 510000, China;
4. College of Chemistry an Chemical Engineering, Liaoning Normal University, alian 116029, China
Abstract “Candles and their burning” as the first inquiry experiment in junior high school chemistry textbook of People's Education Press edition clearly points out the flame division method, which plays an important role in cultivating students' core literacy such as evidence and reasoning, scientific inquiry and innovation consciousness, keen observation and rigorous thinking. But there are some limitations in the actual teaching of the observation method and match stalk burning method on the candle flame division. This paper used the literature research method and the experimental verification method to analyze the causes of limitation: carbon precipitation capacity of fuel, the difference of material structure and so on, and put forward the corresponding improvement suggestion. The aim of this study was to enrich the research content of flame division, and to provide reference for scientific and effective flame inquiry experiment.
CHEN Xue-Fei, QIAN Yang-Yi, CHEN Bo-Yin, TANG Wen-Xiu, WANG Li-Xin. Limitations and Improvement of “Candle Flame Division” Experiment[J]. Chinese Journal of Chemical Education, 2019, 40(7): 88-93.
