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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. |