Chapter 1-3 Flashcards
chemistry
the science that deals with the materials of the universe and the changes that these materials undergo
scientific method
the process that lies at the center of scientific inquiry
theory
a set of tested hypotheses that gives an overall explanation of some part of nature
natural law
a statement that expresses generally observed behavior
law
summary of observed behavior
theory
explanation of behavior
measurement
a quantitative observation
scientific notation
expresses a number as a product of a number between 1 and 10 and the appropriate power of 10
units
what scale or standard is being used to represent the results of the measurement
English system
used in United States
metric
used in most of the rest of the world
International System (SI)
based on the metric systems and units are derived from the metric system. (kg, m, s, K)
volume
three-dimensional space occupied by a substance
mass
the quantity of matter present in an object
significant figures
the numbers recorded in a measurement (all the certain numbers plus the first uncertain number)
