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Introduction to Che.

Chapter one

chemistry the study of matter and the charges that it undergoes
matter is anything that has mass and takes up space
mass a measurement that reflects the amount of matter
weight a measure not only the amount of matter but also of the effects of Earth's grvitational pull on that matter
scietific a systematic approach used in scientific study, wheather its chemistry, biology, physics, or other sciences
qualitative data information that describes color, ordor, shape, or some other physical characteristic
quantitive data numerical information that tells you how much, how little, how big, how tall, or how fast
hypothesis a tentative explanation for what has been observed
experiment a set of controoled observations that test the hypothesis
independent variable the variable that you plan to change
dependent variable its value changes in response to a change in the independent variable
control a standard fo comparison
conclusion aa judgement based on the information contained
model a visual, verbal, and/or mathmatical explanation of experimental data
theroy an explanation that has been supported by many, many experiments
scientific law a relationship in nature that is supported by many experiments
pure research seeks to gain knowledge for the sake of knowledge itself
applied research research undertaken to solve a specific problem
technology the practical use of scientific information
Created by: nastachiea