Module 1 Flashcards
a physical property defined as the amount of mass per unit volume
density
a defined unit in a system of measurement that is based on an object or event in the physical world
base unit
matter that has a definite and uniform composition
substance
a unit that is defined by a combination of base units
derived unit
the difference between an experimental value and an accepted value
error
a measurement that reflects the amount of matter
mass
an explanation of a natural phenomenon based on many observations and investigations over time
theory
the variable that a scientist deliberately changes during an experiment
independent variable
the study of matter and the changes it undergoes
chemistry
a relationship in nature that is supported by many experiments, with NO exceptions
scientific law
a testable explanation of a situation or phenomena
hypothesis
the variable whose value depends on, or changes in response to, the independent variable
dependent variable
temperature
kelvin
length
meter
luminous intensity
candela