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measurment is a way to describe the world with numbers estimation an estimation can help you make a rough measurement of an object precision a discription of how close measurements are to each other accuracy when you compare a measurement to the real, actual, or accepted value, SI designed to provide a worldwide standard of phisical measurment for science meter is the SI unit of length volume the amount of space an object occupies is its volume mass an object measures the amount of matter in the object kilogram is the SI unit for mass weight is a measurment of force The SI unit for weight is the newton kelvin temperature is measured in the SI with the kelvin rate is the amount of change of one measurement in a given amount of time table displays information in rows and columns so that it is easy eaisier to read and understand graph is used to collect data , organize, and summarize data in a visual way line graph shows the relationship between two variables bar graph uses rectangular blocks or bars of varying sizes to show the relationships among variables circle graph shows parts of a whole