CHM-1045 Chapter Notes - Chapter 1: Disneymania 3, Graduated Cylinder, Physical Property

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1. 1 chemistry: a science for the 21st century. Chemistry is the study of matter and the changes it undergoes. Scientific method: a systematic approach to research. 2) performing experiments, making careful observations, and recording information/data about the system. 3) interpretation, meaning the scientist attempts to explain the observed phenomenon. 4) based on the data, the researcher formulates a hypothesis ( a tentative explanation for a set of observations). 5) further experiments are devised to test the validity of the hypothesis in as many ways as possible. Qualitative- consisting of general observations about the system. Quantitative- comprising numbers obtained by various measurements of the system. Isaac newton"s second law of motion: force equals mass time acceleration (f = ma). Theory- a unifying principle that explains a body of facts and/or those laws that are based on them. If a theory is disproved by an experiment, then it must be discarded or modified so that it becomes consistent with experimental obsercations.

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