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Chapter 2 Vocabulary

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.
Created by: Tiana51234