| A | B |
|---|
| Qualitative Data | Information describing color, odor, shape, or some other physical characteristic |
| Quantitative Data | Numerical information (a number and a unit) |
| Scientific Method | A systematic approach to scientific study; a logical method to problem solving |
| Hypothesis | A possible explanation; a tentative, testable statement or prediction about what has been observed |
| Experiment | A procedure, performed under controlled conditions, designed to test a hypothesis |
| Independent Variable | The manipulated variable |
| Dependent Variable | The variable that is changed by the independent variable, the measured variable |
| Control | A variable held constant in an experiment; the group or experiment that is used for comparison |
| Conclusion | A judgement based on information obtained during observations and prior knowledge |
| Theory | An explanation supported by many experiments |
| Model | A visual, verbal, and/or mathematical explanation of data collected from many experiments |
| Scientific Law | Describes a relationship in nature that is supported by many experiments |
| Base Unit | Meter, Liter, Gram, Second (measured units) |
| Conversion Factor | A ratio of equivalent values used to express the same quantity in different units. Ex: 1 meter:100 centimeters |
| Density | A ratio that compares the mass of an object to its volume. Formula D=m/v |
| Derived Unit | A unit defined by a combination of base units |
| Dimensional Analysis | A problem-solving method that focuses on the units that are used to describe matter |
| Graph | A visual representation of information |
| Kilogram | The SI base unit for mass |
| Liter | The metric unit for volume |
| Meter | The metric unit for distance |
| Scientific Notation | Expresses a number as a multiple of two factors: a number between 1 and 10, and 10 raised to a power or exponent. |
| Second | The metric unit for time |
| Significant Figure | The number of all known digits reported in measurements plus one estimated digit |
| Accuracy | Refers to how close a measured value is to an accepted value; how correct your answer is |
| Precision | Refers to how close a series of measurements are to one another, consistency |
