1. What to do… Write in your agenda: Open to page 34 in your note packet
Study Guide due Monday
Open to page 34 in your note packet
Answer the following in the Think About It… What kind of mixtures can you think of that are used in every day life?

2. Standard: SPI 9.4-Differentiate between a mixture and a compound
Mixtures
Standard: SPI 9.4-Differentiate between a mixture and a compound

3. Mixtures
The kinds of matter in a mixture can be present in varying amounts.
Each part of a mixture keeps its own properties.

4. Mixtures
Mixtures are physically combined not chemically so they can be separated using physical means.
Mixtures can be evenly or unevenly mixed.

5. Mixtures Mixtures can be mixed evenly: homogeneous
Mixtures can be mixed unevenly: heterogeneous

6. Solutions
A mixture in which the particles of one substance are evenly mixed with the particles of another substance.
Solutions can be liquid, gas or solid.

7. Breakdown of a Solution
All solutions are made when
one substance dissolves in
another substance.
SOLUTE = The part that dissolves.
SOLVENT = What the solute dissolves in. Usually present in a greater amount.

8. Breakdown of a Solution
Soluble
The ability of a substance to dissolve.
Soluble: Measured by a substance's solubility – how much of a substance will dissolve in 100g of water at a given temp.

9. Breakdown of a Solution
Insoluble
All substances that do not dissolve in water.
Concentration of a solution
Dilute Solution = Contains a small amount of solute vs. the amount of solvent present.

10. Breakdown of a Solution
Concentrated solution = one containing a large amount of solute compared with the amount of solvent present. Considered strong!
Unsaturated solution = Contains less dissolved solute that it can hold at a given temperature.

11. Breakdown of a Solution
Saturated solution = Contains all the solute it can hold at a given temperature.
Supersaturated solution = A solution holding more solute than it could normally hold at a given temperature.

12. Suspensions
A mixture of two or more materials that separate on standing.
They are temporary and will separate into layers.

13. Suspensions Properties of Suspensions
The particles of a suspension scatter light
They are cloudy
They settle on standing
The particles can be seen.

14. Suspensions
Colloid
A suspension in which the particles are permanently suspended.
The particles do not settle out
The particles are constantly bumping into the surrounding material keeping it from settling.

15. Examples of colloids Aerosols:
Man-made: Aerosol sprays, insecticide spray, smog. Natural: Fog, clouds.
Solid aerosol:
Natural: Smoke, dust.
Foam:
Man-made: Shaving lather, whipped cream.
Emulsions:
Man-made: Mayonnaise, cosmetic lotion, lubricants. Natural: Milk.
Sols:
Man-made: Paint, ink, detergents, rubber (a latex - also occur naturally).
Solid foams:
Man-made: Marshmallow, styrofoam, insulation, cushioning.
Gels:
Man-made: Butter, jelly.
Solid sols:
Man-made: Certain alloys Natural: Pearl, opal

16. Match ‘em up! a. solute b. suspension c. solution d. solubility
substance that dissolves in a solvent
ability of one substance to dissolve in another at a given temperature and pressure
mixture in which particles of a material are more or less evenly dispersed throughout a liquid or gas
mixture consisting of tiny particles that are constantly in motion and do not settle out
a.  solute
b.  suspension
c.  solution
d.  solubility

17. Types of Mixtures

18. DO! Answer the following questions based on the previous lessons:
True or False: Examples of mixtures include sand, salad, trail mix, and a mixture of sugar and iron filings
Mixtures are usually easy to and can often be done by picking the ingredients out by hand.
Can you separate mixtures using the physical properties of substances? Give an example.
separate
Yes, cereal and raisins

19. Kool-aid mixing with water
True or False: In a mixture, each kind of matter keeps its own physical properties.
When a substance mixes completely with another substance to form a solution it is said to  
A is a type of mixture in which particles of the two substances are evenly mixed; some of the physical properties change.
A solution is a combination of two or more kinds of matter where one substance dissolves in another and there can be changes in the physical properties. Give an example
dissolve
Homogeneous solution
Kool-aid mixing with water

20. A solution is a special kind of .
True or False: Examples of solutions are saltwater, chocolate milk, Kool Aid, brass, and air
Solutions can be separated but are usually a little to separate than mixtures.
Can you separate solutions using the physical properties of substances?
mixture
harder
Yes, salt and water

21. Keys to Understanding Write at least 3 sentences
Summarize the notes in your OWN WORDS
Explain the main ideas from the lesson