1. Classification of Matter

2. We break matter up into…

3. Separation of Matter Mixtures Pure Substances
Can be separated by PHYSICAL means
Separation doesn’t chemically alter the components in the mixture
EXA - Iron filings and salt (magnet OR dissolve + filter)
Pure Substances
Can be separated by CHEMICAL means only.
EXA - electrolysis of water

4. Heterogeneous Mixture
Speckled, Chunky, Uneven
Cloudy to opaque
Fluid mixtures settle into layers
Solids in fluids can be filtered out
Can be separated by PHYSICAL MEANS
EXA - Iron Filings in salt
(can be solids, liquids, or gasses)

5. Homogeneous Mixture (Solutions)
Look uniform
Transparent
Can’t be filtered
Can be separated by PHYSICAL means
EXA - Saltwater (distillation)
(can be solids, liquids, or gasses)
***If the concentration can vary, it’s a solution!

6. Elements Resist decomposition
Smallest indivisible component that retains the characteristics of the substance (can’t be broken down!)
EXA - Hydrogen, Carbon, Gold
(can be solids, liquids, or gasses)

7. Compounds
A chemical combination of elements (the elements exist in specific ratios)
Can be broken down by CHEMICAL means (but it will no longer retain the same properties)
EXA - Electrolysis of Water (Hydrogen + Oxygen)
(can be solids, liquids, or gasses)
(Click image to see a short clip)

8. Elements and Compounds
Elements and compounds are pure chemical substances found in nature. The difference between an element and a compound is that an element is a substance made of same type of atoms, whereas a compound is made of different elements in definite proportions. 
Examples of elements: iron (Fe), copper (Cu), hydrogen (H) and oxygen (O2).
Examples of compounds: water (H2O) and salt (Sodium Chloride - NaCl).

9. Electrolysis of Water Water is wet, clear, doesn’t burn…
What comes out of the electrolysis of water is flammable, a clear gas and is CLEARLY no longer water!

10. Homework/Classwork
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