1. Classification OF matter
By: Mrs. “My sister is having a girl!!” Burge

2. Matter
Matter- anything that takes up space (and displays the properties of mass and inertia)
What is the smallest component of matter?
atom
Composition- parts of a sample and their relative proportions

3. Physical Properties
Physical Properties- an aspect of matter that can be observed or measured without changing it
Examples:
Density
Color
Conductivity (ability for electricity to flow through)
Malleability (can it be flattened?)
Molecular weight and volume

4. Chemical Properties
Chemical Property- any characteristic that can only be observed by changing the chemical identity of the substance
Examples:
Reactivity
Flammability (how well does it catch on fire?)
Oxidation (Will it react with oxygen (rust))

5. Substances Substance- a type of matter with a fixed composition
It can be an element or a compound

6. Element Element- a substance made up of atoms that are all alike
One type of atom
Examples:
Graphite in your pencil
Lithium in all your electronic batteries
Platinum in cars

7. Compound
Compound- a substance where atoms of 2 or more elements are (chemically) combined in a fixed composition
If separated it becomes a different substance
Cannot physically be separated
We can’t use heat or strainers to separate
Examples:
Water (hydrogen and oxygen atoms in a 2 to 1 ratio)
Salt (sodium and chloride in a 1 to 1 ratio)

8. Mixture
Mixture- composed of 2 or more substances that can be separated by physical means
Examples-
Cotton blend shirts
Milk
Salad dressing
Air
White gold

9. Mixtures There are 2 types of mixtures: Heterogeneous Homogeneous
What’s the difference?

10. Heterogeneous Mixture
Heterogeneous Mixture-a mixture where different materials remain distinct
Salad dressing (settles when it is allowed to just sit)
Salads (you can pick out different veggies)
Jello with fruit in it
Any mixture that isn’t the same throughout

11. Heterogeneous Mixture
Suspensions- a heterogeneous mixture made of a liquid and a solid that will settle (separate)
River deltas
Salad dressing
Pulp in fruit juice

12. Heterogeneous Mixture
Colloids- a heterogeneous mixture with particles that never settle
Pasteurized milk
Fog
Smoke

13. Homogeneous Mixture
Homogeneous Mixture- a mixture that remains constantly and uniformly mixed and has particle that are so small they cannot be seen (with our eyes or low powered microscopes)
They will never settle
Every part is the same
Examples:
Pop
Gasoline
Steel
Jello without fruit

14. Homogeneous Mixture Solution- same thing as a homogeneous mixture
Made of 2 parts:
Solute- the smaller amount of a solution (what is being put into the solvent)
Salt, sugar, nitrogen
Solvent- the larger amount of a solution (what something is being added to)
Many times is water
Oxygen, milk

15. Saturation
Saturation- the state that occurs when no more of something can be absorbed, combined with or added
Unsaturated- the state when more of something can be absorbed, combined with or added
Super Saturated- a state of solution that contains too much solute than the solvent can dissolve, absorb or combine with