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| axis | One of two or more reference lines that mark the borders of a graph. |
| data points | putting a dot on the graph for each pair of data. |
| density | The ratio of the mass of a substance to the volume of the substance. |
| dependent variable | In an experiment, the factor that changes as a result of manipulation of one or more factors. |
| independent variable | In an experiment the factor that is deliberately manipulated. |
| International System of Units | In the late 1700s, the French Academy of Sciences set out to make a simple and reliable measurement system |
| law | A descriptive statement or equation that reliably predicts events under certain conditions |
| mass | A measure of the amount of matter in an object. |
| mean | The number obtained by adding up the data for given characteristic and dividing this sum by the number of individuals. |
| median | The value of the middle item when data are arranged in order by size. |
| mode | The most frequently occurring value in data set. |
| model | A pattern, plan, representation or description designed to show the structure or workings of an object, system, or concept. |
| range | Each axis has its own range to find the range, subtract the smallest value of single variable from larges value. |
| scale | Each axis has its own scale, the scale size that is used for each box or grid mark on the graph. |
| slope | A measure of the slant of a line; the ratio of rise over run. |
| temperature | A measure of how hot or cold something is; specifically, a measure of the average kinetic energy of the particles in an object. |
| volume | A measure of the size of a body or region in three-dimensional space. |
| theory | a system of ideas that explains many related observations and is supported by a large body of evidence acquired through scientific investigation |
