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chemistry q.1(pg2-7)

chemistry the branch of science that deals with the study of the composition, structure, and properties of matter and the changes that matter undergoes
physical, organic, inorganic, biochemistry, analytical the five major branches of chemistry
physical the type of chemistry that deals with applying the theories of physics to the study of reactions and properties of matter
organic type of chemistry that studies substances that are compounds of carbon
inorganic type of chemistry that studies substances that are compounds of elements other than carbon
biochemistry the chemistry of living things
analytical deals with identifying what substances are present in materials and how much of each substance is present
clinical chemistry combines biochemistry and analytical chemistry
polymer chemistry includes organic, physical, and analytical chemistry
pharmaceutical chemistry involves biochemistry, organic, and analytical chemistry
all - pervasive chemistry in our daily lives is
chemist the most obvious career directly related to chemistry
chemical engineers apply their understanding of chemistry to solve everyday problems
lab technician carry out routine analysis, operate instruments, prepare samples, or help write lab reports
scientific journalist combine writing with chemistry
illustrator an artistic person may become this for textbook Publishers or scientific publication
nutritionist must understand the basic processes that occur in a complex chemical Factory--the human body
forensic chemist apply chemistry to legal questions
criminology scientific crime detection
science the systematic study of God's universe and how it works
scientific method system to guide man's study of creation
observing, hypothesizing, experimenting the three main steps of the scientific method
observing measurement, organizing data, and searching scientific literature to learn about the work of other scientists
hypothesizing suggesting explanations for observations
hypothesis a tentative explanation of a natural phenomenon
testable, reproducible two requirements for a good hypothesis
experimenting setting up carefully controlled artificial situations to test a hypothesis
experiments carefully controlled artificial situations
variable one factor changed in an experiment
constants unchanged factors in an experiment
theory a hypothesis that has been supported by many experiments and verified by other scientists
scientific law a theory that has stood the test of time
physical universe science only deals with what
answer all our questions even in the physical Universe, science cannot
an orderliness that leads to reproducible effects the science of chemistry is not governed by haphazard or disordered principles but rather by
Sir William Thompson, Lord Kelvin said that a study is only science when it can be measured
precision the consistency or reproducibility of a measurement; closely related to uncertainty
accuracy how close the measurement is to the actual, exact value
random errors errors in precision
systematic errors errors in accuracy with definite causes
values obtained by counting and defined values types of exact numbers
measurement there is always some uncertainty in a
system of measurement a collection of compatible, related units that can be used to measure various quantities
F. P. S. System system of measurement most commonly used in the United States
metric system worldwide standard system of measurement
SI a modification of the metric system with meticulously defined standards for all units
prefixes are added to the base units name to change its value; what SI uses to form larger or smaller units
meter standard SI unit of length
exact numbers numbers with no uncertainty
Created by: tatianaprince



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