Density, Volume, and Mass

Essay by Nohj October 2004

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Do you know how to figure out the volume of a cardboard-box? Do you know the density of your favorite book? Do you know what mass is?

In my essay I am going to tell you all about these things, and more.

The first things that you need to know are the definitions of mass, volume, and density. The definition of mass (provided by is: The measure of the quantity of matter that a body or object contains. The definition of volume (provided by Webster's Collegiate Dictionary) is: The measured amount that a container or other object can hold; cubic capacity. The definition of density (provided by Webster's Collegiate Dictionary) is: The average number of inhabitants, dwellings, or the like, per unit of area. Now that you know the definitions to those terms we can continue.

Now that you know the definitions of the terms I will be using in this essay, I will tell you how to find the mass of an object.

To find the mass of an object scales are very useful. For a small item, like a paperback book a small meat scale is fine. When you have weighed your object, convert what you got into grams if you didn't measure in grams. Now you have the mass of your object (Remember, mass is the amount of matter that something contains. On earth we measure the mass of an object by weighing something. It would actually have the same mass on the moon, yet it would weigh less because the moon has less gravity than on Earth.).

So now you want to know how to find the volume of an object, like a rectangular prism. To find the volume of a quadrilateral (a four-sided figure) you have to use a simple formula. The formula is...