Elements, Compounds, and Mixtures

Abby Rosheim

Pure Substances

-Matter that is composed of only one type of substance.

What is an Element?

-A pure substance that cannot be separated into a simpler substance by physical or chemical means. One example of an element is copper.


A compound is made of elements in a specific ratio that is always the same. Table sugar is an example of a compound!

More About Compounds!

-A pure substance composed of two or more different elements joined by chemical bonds.


Compounds can only be broken down by chemical means, not physically. It has a special ratio that is the same every time.


A mixture can be separated physically, a mixture is a combination of two or more pure substances that are NOT chemically combined. An example of a mixture is a salad.