CH 101 Lecture 1: Early Scientists and Their Experiments
Document Summary
Define scientific method and illustrate its importance in scientific discovery. Introduce the description of atoms and its components. Explain use of periodic table in predicting an element"s physical and chemical properties. Scientific method: observation, ex. things fall, hypothesis, all things you fall drop at the same rate disregarding air resistance and friction, experiment, theory, there is a force called gravity acting on. Repeat theory until it becomes law - laws cannot be broken . Mater is the physical material of the universe. Matter is made up of relatively few elements. Hydrogen -- water in the air, plastics. Oxygen -- in the air or water. Gold -- computer chips and in your phones. On the microscopic level, matter consists of atoms and molecules. Molecules may consist of the same type of atoms or different types of atoms. Major problem for chemists in the 1800s. We can explore the macroscopic world (what we can see)
