Learn about the difference between systematic and random error. Get examples of the types of error and the effect on accuracy and precision.

# Measurement

Learn about the seven SI base units of measurement. Get their abbreviations and learn how they are defined.

## SI Base Units

Learn how to convert cubic feet to cubic meters. Get the conversion factors and see example calculations both to and from cubic meters.

## How to Convert Cubic Feet to Cubic Meters

See how to do the quart to liter conversion and the liter to quart conversion. View the volume conversion factors.

## Quart to Liter Conversion Example

Get the absolute temperature definition in chemistry and physics. See which scales are absolute temperature scales and view unit conversions.

## What Is Absolute Temperature? Definition and Scales

Learn about absolute and relative error. See their formulas and get examples of how to calculate them in science.

## Absolute and Relative Error and How to Calculate Them

Find out why the symbol of pound is lb and learn the correct plural of the unit pound.

## Why the Symbol of Pound Is lb

Get the volume definition in science. Learn about volume units, get examples, and see how volume differs from mass or capacity.

## Volume Definition in Science

Learn the difference between mass and weight. See how to measure them and use units correctly.