Determine the density of a solid or liquid. Use correct number of significant figures. Matter is defined as anything that has mass and takes up space. Density is a number that relates the mass of matter to the space it takes up.
Density is a useful physical property for identifying and classifying materials.
To calculate the density of an solid object or a definite amount of a liquid, you need divide the mass by the volume and round off the answer to the appropriate number of significant figures. For a liquid, volume can be measured by using a graduated cylinder and mass can be calculated from the mass of the cylinder with and without the liquid in it. When you use numbers in calculation, your final answer must show the level of accuracy with which the measurements were made. Suppose you want to calculate the volume of a box which you measure with a small ruler and record the length, width, and height as 4.4 cm by 5.8 cm by 6.2 cm. Write the math expression for the calculation of volume, and record all of the numbers in the answer on your calculator.