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Chapter 1
Physical Science Chapter 1 Vocabulary
Term | Definition |
---|---|
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 |