Part 2: Materials and Procedures Materials List all of the supplies you will need to conduct the experiment. Include the names of the materials, quantities, SI units, and even brand names if the brand may have affected your results. Procedure Create a numbered list summarizing the steps you carried out in completing the lab. If you made any changes to the original instructions in the student guide (either on the advice of your teacher or on your own), be sure to identify them. Describe each step using accurate, concise language so that someone who has never performed the experiment could repeat it. Be sure to include details about any apparatuses and materials that you used, especially if you made substitutions to the apparatuses and materials described in the student guide for the lab.