SCIENCES COMPLETE STUDY GUIDE, EXAM
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, dependent variable The variable that changes because of an independent variable
control variable The variable(s) you don't want to study, need to be either eliminated or kept constant
observational study When systems are observed as they appear in nature, researchers do not attempt to
change them
physical model A model of a physical phenomenon, such as a planetary system
conceptual model A model used to visualize things that cannot be seen, such as atoms
mathematical model A model that treats physical objects/phenomena using mathematical methods
computer model A detailed, complex model calculated by a computer
principle of falsification Principle that only falsifiable statements can be subject to scientific inquiry
hypothesis A testable statement about how something in nature works
law A concise statement that is supported by scientific evidence and repeated experiments,
describes a widespread pattern in nature (what)
theory A statement that explains a wide range of observations, supported by a large body of
scientific evidence (how/why)
meter Base unit of length
kilogram Base unit of mass
second Base unit of time
kelvin Base unit of temperature
Derived units What is produced when the base units/quantities are combined
Speed The name for the distance traveled divided by an interval of time