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Chapter 2 Vocabulary
| Term | Definition |
|---|---|
| Measurement | A way to describe the world with numbers. |
| Estimation | Helps you make a rough measurement of an object. |
| Precision | A description of how close measurements are to each other. |
| Accuracy | When you compare a measurement to the real, actual, or accepted value. |
| SI | The International System of Units. It provides a worldwide standard of physical measurement for science, industry and commerce. |
| Meter | The SI unit of length. |
| Volume | The amount of space an object occupies. |
| Mass | It measures the amount of matter in the object. |
| Kilogram | The SI unit for mass. |
| Weight | A measurement of force. |
| Kelvin | It measures temperature in SI. |
| Rate | The amount of change of one measurement in a given amount of time. |
| Table | It displays information in rows and columns so that it is easier to read and understand. |
| Graph | Used to collect, organize, and summarize data in a visual way. |
| Line graph | It shows the relationship between two variables. |
| Bar Graph | It uses rectangular blocks, or bars, of many sizes to show a relationship between variables. |
| Circle Graph | It shows the parts of a whole. |