DESCRIBE  THE  CHARACTERISTIC PROPERTIES OF MATTER AND DEMONSTRATE HOW SUBSTANCES CAN BE COMBINED OR SEPARATED.

A STUDENT SHOULD KNOW THAT:

A. A MIXTURE OF SUBSTANCES MAY BE SEPARATED USING ONE OR MORE OF ITS
     CHARACTERISTIC PHYSICAL PROPERTIES.

1. Characteristic physical properties can be used to identify matter.
2. Characteristic physical properties include boiling/melting/freezing points, density, solubility, and magnetic properties.
3. Mixtures are combinations of varying amounts of two or more distinct substances (either elements or compounds) that differ in properties and composition.
4. The components of a mixture can be separated by physical means without losing their identity.

B. MATTER CAN BE COMBINED TO FORM NEW SUBSTANCES WITH BOTH CHEMICAL AND
     PHYSICAL PROPERTIES THAT WOULD BE DIFFERENT FROM THE ORIGINAL SUBSTANCES.

1. Matter is considered to be anything that has volume and mass.
2. The atomic structure of a substance determines its chemical properties.
3. A chemical change occurs when materials form new substances with different properties.

TO UNDERSTAND THE CONCEPTS OUTLINED ABOVE, A STUDENT SHOULD BE ABLE TO:

• Design a way to separate the substances in a mixture. Method may rely on one or more of the following properties: boiling/melting/freezing point, density, solubility, and magnetic properties.
• Identify, from a list of characteristics of beginning and ending substances, the type of change that occurred as chemical or physical.