In this interactive, you will learn more about key chemistry-related people and events from prehistoric times to the present. The timeline targets major breakthroughs in the development of chemical science, including the discovery of key elements, as well as the birth and death dates of important contributors chemistry history. As you scroll forward and backward in time, or use a navigation bar to quickly jump to different points of chemical history, you will see the connection between chemical discoveries and other key events in human history. Clicking on a person or date will bring up more information about the selection and provide links to relevant material in the Units. Targeted for all Units 1-13.
You will learn about the economics of operating a chemical factory as you try to optimize the process of a simulated Haber-Bosch process ammonia fertilizer plant. Key concepts include: equilibrium reactions, catalysts, reaction energies, thermo-chemistry, and kinetics. You are challenged to maximize profitability by fine-tuning the reaction: adjusting temperature and pressure in the reaction chamber, switching the type of catalyst, and adjusting the rate that the product (ammonia) and impurities are removed. Every input has a cost associated with it, so you will have to apply what you know about chemical reactions to be successful. This lab is most closely linked to concepts in Units 6, 7 9, and 12.Lesson Plan | Student Worksheet