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Chapter 1

Physical Science Chapter 1 Vocabulary

TermDefinition
Bias occurs when a scientist's expectations change how the results of an experiment are viewed
Constant quantity or factor that remains at the same value when others are changing
Control used as a standard of comparison in a scientific experiment
Density a ratio that compares the mass of an object to its volume
Dependent Variable the responding variable in an experiment
Experiment test or procedure carried out under controlled conditions
Graph a visual representation of information that can reveal patterns in data
Hypothesis a tentative, testable, statement or prediction about what has benn observed
Independent Variable variable whose value determined the value of other variables
Mass measures of the amount of matter contained in a physical body
Model a visual, verbal, and/or mathematical explanation of data collected from many experiments
Scientific Law statement that describes what will happen in all cases under a specified set of conditions
SI international standards of measurement adapted from the metric system
Scientific Method systematic problem-solving method of observing, experimenting, and analyzing
Standard exact, agreed-upon quantity used from comparison
Technology the practical use of scientific information
Theory an explanation supported by many experiments; can be modified and is subject to new experiment data
Variable factor or condition that is subject to change in a scientific experiment
Volume measure of the space occupied by an object or system