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IPC Ch 1
Term | Definition |
---|---|
bias | occurs when a scientist's expectations change how the results of an experiment are viewed |
constant | in an experiment, a variable that does not change |
control | In an experiment, the standard that is used for comparison |
dependent variable | factor that changes as a result of changes in the other variables |
experiment | organized procedure for testing a hypothesis; tests the effect of one thing on another under controlled conditions |
Hypothesis | a possible explanation for a problem using what you know and what you observed |
independent variable | factor that, as it changes, affects the measure of another variable |
model | can be used to represent an idea, object, or event that is too big, too small, too complex, or too dangerous to observe or test directly |
scientific law | a statement about what happens in nature and that seems to be true all the time |
Scientific Methods | pattern of investigation procedures that can include stating a problem, forming a hypothesis, researching and gathering information, testing a hypothesis, analyzing data, and drawing conclusions |
scientific theory | a well-tested concept that explains a wide range of observations |
variable | quantity that can have more than a single value, can cause a change in the results of an experiment |
Density | mass per unit volume of a material |
Mass | the amount of matter in an object |
matter | anything that takes up space and has mass |
SI | International System of Units |
standerd | exact amount agreed upon to serve as a basis for comparison |
volume | Amount of space occupied by an object |
society | group of people that share similar values and beliefs |
Technology | Application of science to benefit people |