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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 |