1. Matter Classification
Matter: Anything that takes up space!!!

2. Atoms Elements Compounds Molecules
Pure Substances
A sample of matter that has definite chemical and physical properties.
Atoms
Elements
Compounds
Molecules

3. Elements

4. H2O NaCl CO2 Compounds Made of elements in a specific ratio
that is always the same
Has a chemical formula
Can only be separated by
chemical means, not physically
H2O
NaCl
CO2

5. Pure Substances Element composed of identical atoms
EX: copper wire, aluminum foil

6. Pure Substances Compound
composed of 2 or more elements in a fixed ratio
properties differ from those of individual elements
EX: table salt (NaCl)

7. Two different compounds, each has a definite composition.
Pure Substances
For example: compounds
Two different compounds, each has a definite composition.

8. Mixtures Variable combination of 2 or more pure substances.
Heterogeneous
(Mechanical Mixture)
Homogeneous
(solution)

9. Mixtures: Homogenous particles don’t settle EX: rubbing alcohol
Solution
homogeneous
very small particles
no Tyndall effect
Tyndall Effect
particles don’t settle
EX: rubbing alcohol

10. Mixtures Mechanical Mixture Not of a uniform composition throughout
Heterogenous

11. Mixtures: Heterogenous
Suspension
Heterogeneous
When mixed, a suspension can look uniform
particles settle = more than one distinct layer
EX: fresh-squeezed lemonade

12. Mixtures vs. Compounds

13. Can you identify the following?
You will be shown a series of photos. Tell if each photo represents an item composed of an element, compound, or mixture.
Review:
An element contains just one type of atom.
A compound contains two or more different atoms joined together.
A mixture contains two or more different substances that are only physically joined together, not chemically.
A mixture can contain both elements and compounds.

14. Element, Compound, or Mixture?
Rocks

15. Element, Compound, or Mixture?
Rocks

16. Element, Compound, or Mixture?
Copper

17. Element, Compound, or Mixture?
Copper Cu

18. Element, Compound, or Mixture?
Jelly Beans

19. Element, Compound, or Mixture?
Jelly Beans

20. Element, Compound, or Mixture?
Table Sugar

21. Element, Compound, or Mixture?
Table Sugar
C12H22O11

22. Element, Compound, or Mixture?
Diamond

23. Element, Compound, or Mixture?
Diamond C

24. Element, Compound, or Mixture?
Tea

25. Element, Compound, or Mixture?
Tea

26. Element, Compound, or Mixture?
Salt

27. Element, Compound, or Mixture?
NaCl
Salt

28. Element, Compound, or Mixture?
Neon Gas

29. Element, Compound, or Mixture?Ne
Neon Gas

30. Element, Compound, or Mixture?
Salad

31. Element, Compound, or Mixture?
Salad

32. Element, Compound, or Mixture?
Pure Water

33. Element, Compound, or Mixture?
Pure Water
H2O

34. Element, Compound, or Mixture?
Aluminum

35. Element, Compound, or Mixture?
Aluminum Al

36. Element, Compound, or Mixture?
Lemonade

37. Element, Compound, or Mixture?
Lemonade

38. Element, Compound, or Mixture?
Silver

39. Element, Compound, or Mixture?
Silver Ag

40. Element, Compound, or Mixture?
Sand

41. Element, Compound, or Mixture?
Sand