Chapter 1: Introduction to Physical Science
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17 terms
Terms | Definitions |
|---|---|
 Scientific Inquiry | Different ways scientist study the natural world |
| Steps of scientific inquiry | 1.posing questions, 2. developing a hypothesis, 3. designing experiments, 4. collecting/interpreting data, 5. drawing conclusions, 6. communicating ideas and results |
| Quantitative observations | Observations that deal with numbers or measurements |
| Qualitative observations | Observations that do not use numbers or measurements (descriptions) |
| Another word for independent variable | manipulated variable |
| Another worrd for dependent variable | responding variable |
| DRY MIX- | dependent responding on y axis manipulated independent on x axis |
| Independent variable | The variable that is changed |
| Dependent Variable | The variable that is expected to change because of the independent variable |
| constant variable | variables that are kept the same |
| Physical Science is divided into 2 categories- | physics and chemistry |
| Technology | a way of changing the natural world to meet human needs or solve problems |
| Scientific Law | a statement that describes what scientists expect to happen under a particular set of conditions |
| Scientific Theory | a well-tested explanation for a wide range of observations or experimental results |
| Controlled experiment | An investigation in which all variables except one remain the same |
| Why only one independent variable in an experiment? | To be able to determine if that specific variable was responsible for causing the change |
| Hypothesis | the possible answer to a scientific question or explanation for a set of observations |
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