1. Classifying Matter
Physical Science

2. Classifying Matter PURE Matter is either Pure Substance or a Mixture
Element – contains only 1 type of atom
Compound – elements combined in fixed proportions.

3. Compounds
Compounds can be broken down into simpler substances, elements cannot. Compounds have a fixed composition, mixtures do not.

4. Mixtures
Heterogeneous mixture – composition is not uniform Homogeneous mixture – composition is uniform

5. Homogeneous or Heterogeneous?
Chocolate chip ice cream Vanilla ice cream Cake batter Chicken noodle soup Sand

6. Types of Mixtures
The mixture type is based on particle size. Solution – substances dissolve and form homogeneous mixture. Suspension – substances will separate over time and form heterogeneous mixture. Colloid – substances are suspended but will not separate over time.

7. Separating Mixtures
Filtration – based on PARTICLE SIZE Distillation – based on BOILING POINTS.

8. States of Matter
Solid – definite shape and volume Liquid – definite volume, indefinite shape Gas – indefinite volume, indefinite shape

9. Properties of Matter
Physical properties – can observe/ measure without changing matter Chemical properties – can only observe or measure by changing matter

10. Physical or Chemical? Melting point Flammability Boiling point Density Malleability Hardness Reactivity Conductivity