| A | B |
|---|
| Metric System | measurement system based on the number 10 |
| SI | metric system - International system of units |
| Mass | measure of the amount of matter in an object |
| Weight | measure of the force of gravity acting on an object |
| Volume | amount of space an object or substance takes up |
| Meniscus | curve line when measuring a liquid |
| Density | measure of how much mass is contained in a specific volume d=m/v |
| Estimate | an approximation of a number based on reasonable assumptions |
| Accuracy | how close a measurement is to a true or accepted value |
| Precision | how close a group of measurements are to each other |
| Significant Figures | in a measurement include all digits exactly, plus one estimated digit |
| Percent Error | calculations that determine how accurate an experimental value is. |
| Mean | numerical average of a set of numbers |
| Median | the middle number in a set of numbers |
| Mode | the number that appears most often in a set of numbers |
| Range | the difference between the greatest value and the least value in a set of numbers |
| Anomalous Data | data that do not fit with the rest of a data set |
| Graph | a "picture" of data |
| Linear Graph | a line graph in which data points produce a straight line |
| Nonlinear Graph | a line graph in which data do not fall along a straight line |
| Model | any representation of an object or a process |
| System | a group of parts that work together to perform a function |
| Input | the material or energy that goes into a system |
| Process | what happens in a system |
| Output | material or energy that comes out of a system |
| Feedback | output that changes the system in some way |
| Safety Symbol | symbols that alert you to possible hazards in a lab |
| Field | any area outside a laboratory |
