CHEM 1000 Lecture 1: Chemistry Basics Sections 1.1-1.4
Document Summary
Science- the study of nature and the physical world around us. Tech- fire for cooking science- understanding how something works. Chemistry- the study of matter and its changes. Knowledge of chemistry helps understand many facets of modern life. Testable hypothesis- come up with a theory that you can test or run an experiment. Reproducible- if someone else preforms the same experiment they should get the same results. Cyclical & on going- can change theory based upon your results or design new experiment to prove theory. Variables- something that can change over the course of an experiment. Unknown knowns- understand but not aware unknown variables- neither aware/understand. Scientific theory- set of tested hypotheses that explain natural phenomena. Scientific law- summarize large amounts of scientific data and provide descriptions of natural phenomena (law of conservation of mass/matter, law of gravity) Scientific models- tangible items or pictures used to represent invisible processes. Risk- benefit analysis involves an estimation called the desirability quotient (dq)
