DESCRIBE THINGS...

The world around us is made up of matter. Matter is made up of particles--atoms. Pure substances consist of one kind of atom and these are referred to as elements. Families of elements are related by common physical and chemical properties (Periodic Table of Elements). Molecules can be made up of different kinds of atoms--like two hydrogen atoms joined or three oxygen atoms joined. A molecule of an element consists of two or more of the same kind of atoms. During chemical changes, elements combine to form compounds, or compounds breakdown into elements or other compounds.

The kinds of terms you might use to describe the properties of materials might include:
1) mass = Mass = Density x Volume (M = D x V) the amount of substance there is in an object

2) volume = Volume = Mass/Density (V= M/D); how much an object holds, how much space it occupies

3) density = Density = Mass/Volume (D= M/V); "Density" is the term used to compare the mass of the same volume of different substances. The same volume of two different substances can have a different mass.
http://www.mathmol.com/textbook/density.html

4) physical properties = color, size, shape, texture

5) chemical properties = arrangement of atoms

6) uses (benefits / risks)


http://www.chemsoc.org/viselements/