1. What’s the MATTER Classify Matter

2. Matter, Classify Matter At the conclusion of our time together, you should be able to:
Classify a mixture of matter based on their physical and chemical properties
Characterize various types of matter

3. Bill Gates' Rules Here is a list of 11 things that many high school and college graduates did not learn in school. In his book, Bill Gates talks about how feel-good, politically-correct teachings created a full generation of kids with no concept of reality and how this concept has set them up for failure in the real world.
RULE 9
Life is not divided into semesters. You don't get summers off and very few employers are interested in helping you find yourself. Do that on your own time. 3

4. Types of Matter Pure Substance- Matter with a fixed composition
It has distinct properties
Examples = elements
compounds

5. Types of Matter Mixtures- Most matter is a mixture
The composition is not fixed (changes from sample to sample)
Two Types –
Homogeneous
Heterogeneous

6. Homogeneous Mixtures Composition is uniform throughout Solution-
Particle size = 0.01 – 1 nm
Doesn’t settle out upon standing
Can’t be separated by filtering
Doesn’t scatter light
Example = salt water

7. Homogeneous Mixtures Colloid- Particle size = 1 – 1000 nm
Doesn’t settle out upon standing
Can’t be separated by filtering
Scatters light (Tyndall Effect)
Examples = milk, gelatin, smoke

8. Heterogeneous Mixtures - Suspension
The sample varies in composition, properties and appearance
No uniformity
If a suspension:
Particle size is greater than 1000 nm
Particles settle out upon standing
Can be separated by filtration
Might scatter light
Examples = soil, trail mix, pond water

9. Don’t Let This Stuff Bite You!!!!

10. Let’s Look at Some Examples:
Mixtures are variable combinations of 2 or more pure substances.
Heterogeneous – visibly separate phases
Homogeneous – Same throughout

11. Pure substance vs. Mixture
Only ONE element has 2 or more
or compound elements/
(distilled water) compounds.

12. Distilled Water is
a compound.
an element.
a solution.
a mixture.

13. Air is a mixture of several gases.
Name Formula amount
Nitrogen N %
Oxygen O %
Argon Ar %
Carbon CO %
Dioxide

14. Noble (inert) Gas Air is a mixture of several gases
Name Formula Amount
Neon Ne %
Methane CH %
Helium He %
Krypton Kr %
Hydrogen H %
Xenon Xe %
Noble (inert) Gas

15. Atoms are NOT the same as molecules.
Air and oxygen are NOT the same.
Helium and hot air are NOT the same.

16. Helium and hot air are NOT the same.

17. What’s the MATTER Classify Matter
Let’s Put it All Together in a Chart!!

18. MATTER No Yes Can it be physically separated? MIXTURE PURE SUBSTANCE
Is the composition uniform? No
Yes
Can it be chemically decomposed? No
Yes
Homo- geneous Mixture
(solution)
Hetero- geneous Mixture
Compound
Element
Suspensions
Colloids

19. I don’t feel so stupid now…

20. Matter, Classify Matter Let’s see if you can:
Classify a mixture of matter based on their physical and chemical properties
Characterize various types of matter

21. Putting sand and salt together makes
a compound.
an element.
a mixture.
a solution.

22. Pure Water is
a compound.
an element.
a solution.
a mixture.

23. Tap Water is
a compound.
an element.
a solution.
a mixture.

24. Familiar Saying
A beholden vessel never exceeds degrees Fahrenheit.
A watched pot never boils!

25. An atom is to an element, as a molecule is to a
metal.
nonmetal.
metalloid.
compound.

26. If different kinds of atoms are represented by different colored dots, which picture represents a sample of a compound?

27. If different kinds of atoms are represented by different colored dots, which picture below represents a mixture?

28. Which of the following illustrations represents a pure substance?

29. To: Santa Re: Where Are My Gifts?! Actual E-mails to EmailSanta.com
I’m sorry, but I don’t have a chimney…I’ll leave the cat flap unlocked for you, but please watch out for the litter box!
Jon, 4

30. Salt (NaCl) is a common substance. Salt is which of these?
atom
element
compound
mixture

31. A chocolate chip cookie is an example of a __________,
A chocolate chip cookie is an example of a __________, because ______________.
a. compound, the ingredients are chemically bonded.
b. compound, it is the same throughout.
c. mixture, you can separate out the chips.
d. mixture, you cannot distinguish between the ingredients.

32. Which formulas represent compounds?
O2, H2O2
CO2, H2O
H2, CO2
H2, O2

33. Which of the following is a compound?
oxygen
water
nitrogen
air

34. I don’t feel so stupid now…