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| Question | Answer |
| Science | A system of knowledge and the methods you use to find that knowledge. |
| Technology | A use of knowledge to solve practical problems. |
| Three Branches of Science | physical science, Earth and Space Science, and life science |
| Chemistry | The study of composition,structure, properties, and reactions of matter. |
| Physics | The study of matter and energy and the interactions between the two through forces and motion. |
| Geology | The study of the origin, history, and the structure of the Earth. |
| Astronomy | The study of the universe beyond Earth, including the Sun, moon, planets, and stars. |
| Biology | Life science; the study of origin and the behavior of living things. |
| Scientific Method | An organized plan for gathering, organizing, and communicating information |
| Observation | Information that you can obtain through your five senses (sight, taste, hear, touch, smell) |
| Hypothesis | A proposed answer to a question (an educated guess) |
| Manipulated Variable (Independent Variable) | The variable that causes a change in another |
| Responding Variable (Dependent Variable) | The variable that only changes in response to the manipulated variable. (Things that are measured in units.) |
| Scientific Theory | Well-tested explanation for a set of observations or experimental results. |
| Scientific Law | A statement that summarizes a pattern found in nature |
| Model | Representation,of an object or event. |
| Scientific Notation | A way of expressing a value as the product of a number between 1 and 10 and a power of 10 (Example:3.0 X 10^-4) |
| Length | Straight-line distance between two points is the the meter (m) |
| SI | International System of Units; metric system |
| Mass | The quantity of matter in a object or sample, is in kilogram (kg) |
| Volume | The amount of space taken up in an object |
| Density | The ratio of an object's mass to its volume |
| Precision | A gauge of how exact a measurement is |
| Accuracy | Is the closeness of a measurement to the actual value of what is being measured |
| Thermometer | An instrument that measures temperature; how hot an object is |
| Slope | The steepness of a line, a ratio of a vertical change to the corresponding horizontal change. (Rise over Run) |
| Direct Proportion | A relationship in which a ratio of two variables is constant. |
| Inverse Proportion | A relationship in which the product of the two variables is constant. |
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