科创教学发展

利用变量控制改进氯糖实验

作者：王梓硕¹，孙钰涵²，曹广雪^3,*

¹山东邹城市第一中学2025 级12班山东济宁

²山东邹城市实验中学2025级13班山东济宁

³山东邹城市实验中学山东济宁

^*标记署名为通讯作者

提交：2026-01-20修改：2026-02-12录用：2026-04-01出版：2026-04-10

少年创新探索 2026, 3(2), 55-61; https://doi.org/10.58244/jie.263872

课题资助：自筹经费。无利益冲突需要说明。

摘要：变量控制作为科学探究与高中化学对比实验的核心方法，通过控制其他因素不变、仅改变单一变量的方式，将多因素问题转化为单因素问题进行研究。本文以该方法为核心，基于变量控制原理对经典“氯糖实验”进行改进：通过替换反应物，观察实验现象的差异与变化，不仅验证了含糖类、淀粉及碳水化合物物质均可参与反应，还进一步延伸至火箭燃料的原理探究，展现了从基础实验到前沿应用的递进逻辑。研究表明，变量控制方法在解释实验改进依据、优化工艺参数及理解化学反应机理中具有重要实用价值与教育意义，为学生培养科学探究能力提供了方法论支撑。
关键词：变量控制；氯糖实验；火箭燃料；高中化学；实验研究

正文内容

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新华社.#14岁少年自制火箭惊呆网友#近日,山东... 来自新华社 - 微博．weibo.com．2024-10-25 https://weibo.com/newlogin?tabtype=weibo&gid=102803&openLoginLayer=0&url=https%3A%2F%2Fweibo.com%2F

Improving Chlorine-Sugar Experiment by Variable Control

As a core methodology in scientific inquiry and comparative experiments within high school chemistry, the controlled variable method isolates a single factor by keeping all other conditions constant, thereby transforming multifactorial problems into single-factor studies. Centering on this method, this paper improves the classic "chlorine-sugar experiment" based on the principle of variable control. By substituting reactants and observing the variations in experimental phenomena, it not only verifies that substances containing sugars, starch, and carbohydrates can participate in the reaction but also extends the investigation to the principles of rocket propellants. This demonstrates a progressive logical transition from basic experimentation to cutting-edge applications. The research indicates that the controlled variable method holds significant practical value and educational significance in explaining the rationale behind experimental improvements, optimizing process parameters, and understanding chemical reaction mechanisms, providing methodological support for cultivating students' scientific inquiry capabilities.
Keywords: Controlled variable method; Chlorine-Sugar experiment; Rocket propellant; High school chemistry; Experimental research