Chemistry, Color, and Fire, or Back to the Foundations of Chemistry

What exactly is fire, and what components are necessary for combustion to occur? Can combustion happen without oxygen or even underwater? Since ancient times, people have tried to comprehend the essence of fire, viewing it, along with water, earth, and air, as one of the four basic elements that make up the universe. Remarkably, attempts to understand fire's nature have laid the groundwork for modern chemistry. As such, this semilab offers an excellent opportunity for beginners to explore the basics of chemistry. Through this semilab, we will uncover the chemistry underlying the phenomenon of fire. Participants will replicate the experiments conducted by 19th-century scientists to explore fire. We will examine the composition of air and the contribution of its components to the combustion process. By observing the emission spectra of various materials, we’ll gain insights into how chemical properties influence color. Additionally, we will rediscover chemical elements, engage in forensic activities by identifying tiny traces of substances, and even explore combustion in water. Lastly, we’ll try to prepare something intriguing to present to our fellow campers!