1. CLASSIFYING MATTER

2. Chemistry Learning Goals
Goal of today’s lesson:
Learn how matter is classified. Another way to think of that is to understand how matter is organized.
I will be successful if:
I can identify and correctly classify different pure substances and mixtures.

3. CLASSIFYING MATTER

4. At a glance… Classification pattern activity:
You’ve been given a blank chart and a set of pictures.
Cut out the pictures and try to organize into similar groupings
Can you fit your groupings onto the table?
You will have 6 pictures/grouping.
Groupings go from most complex (put on the far left) to least complex (place on the far right)
Glue them to your sheet

5. Matter Pure Substances Mixtures Homo- geneous Solutions
Hetero- geneous
Colloid
Emulsion
Suspension
Mechanical Mixture
Pure Substances
Compound
Element
Particles increasingly smaller….

6. CLASSIFYING MATTER
MATTER
Takes up space and has a mass
Both are “matter”, but one is pure and one is a mixture

7. Takes up space and has volume
CLASSIFYING MATTER
MATTER
Takes up space and has volume
PURE SUBSTANCE
A substance that is made up of only one kind of particle; and has a fixed composition

8. CLASSIFYING MATTER MIXTURE
Takes up space and has volume
MIXTURE
A substance that is made up of two or more different particles mixed together. Parts can be physically separated.
There are also different types of mixtures

9. CLASSIFYING MATTER MATTER MIXTURE PURE SUBSTANCE
Takes up space and has volume
MIXTURE
A substance that is made up of at least two different types of particles
PURE SUBSTANCE
A substance that is made up of only one particle
There are also different types of mixtures

10. CLASSIFYING MATTER Mechanical Mixture SOLUTION
A substance that is made up at least two different types of particles
Mechanical Mixture
A mixture in which you can distinguish different types of matter
SOLUTION
A uniform mixture of 2 or more substances
Heterogeneous
Homogeneous

11. (sugar + fruit extract + water)
Homogeneous Mixture
A uniform mixture of 2 or more substances (i.e. substances mix together so well it looks like only one substances); creates 1 phase
18K gold
(gold + copper alloy
Apple juice
(sugar + fruit extract + water)
Gas mixture
(iodine gas + air*)

12. A uniform mixture of 2 or more substances
SOLUTION
A uniform mixture of 2 or more substances
Air is actually a solution of:
Nitrogen
Oxygen
Hydrogen
Carbon dioxide
Water vapour
Argon gas
Other gases
uniform = homogenous

13. Is FRESH milk a homogenous solution?

14. Is FRESH milk directly from a COW a homogenous solution?
Fresh milk is a heterogeneous mixture that is called a suspension.
Suspensions look homogenous, but are not; they will eventually settle out.

15. Mechanical Mixture
A mixture containing two or more substances that are visible/separate.
All heterogeneous mixtures look like they have 2 or more substances.

16. Types of Mechanical Mixtures:
Ordinary mechanical mixture
Can identify various visible solid components.
Easily separated
Examples: pizza, salad, soil.

17. Heterogeneous Mixtures
Suspension: a heterogeneous fluid containing solid particles that are sufficiently large for sedimentation. (Ex. Flour in water)
Colloid: a substance microscopically dispersed evenly throughout another one (Ex. Store bought milk)
Emulsion: a mixture of two or more immiscible (un-blendable) liquids (Ex. Vinegarette)

18. CLASSIFYING MATTER MATTER PURE SUBSTANCE MIXTURE Mechanical Mixture
Takes up space and has volume
PURE SUBSTANCE
A substance that is made up of only one particle
MIXTURE
A substance that is made up at least two different types of particles
Mechanical Mixture
A mixture in which you can distinguish different types of matter
SOLUTION
A uniform mixture of 2 or more substances (alloys)
Heterogeneous
Homogeneous

19. CLASSIFYING MATTER MATTER PURE SUBSTANCE MIXTURE Mechanical Mixture
Takes up space and has volume
PURE SUBSTANCE
A substance that is made up of only one particle
MIXTURE
A substance that is made up at least two different types of particles
Mechanical Mixture
A mixture in which you can distinguish different types of matter
SOLUTION
A uniform mixture of 2 or more substances (alloys)
Iron (Fe)
Water (H2O)
Heterogeneous
Homogeneous

20. CLASSIFYING MATTER ELEMENT COMPOUNDS
PURE SUBSTANCE
A substance that is made up of only one particle
ELEMENT
A substance that cannot be broken down by chemical or physical means
COMPOUNDS
Two or more elements that are chemically joined
Iron (Fe)
Water (H2O)

21. CLASSIFYING MATTER ELEMENT
A substance that can not be broken down by chemical or physical means
Smallest unit of matter = ATOM
Found on the periodic table
Oxygen
(O2)
Sodium
(Na)
Bromine
(Br2)

22. CLASSIFYING MATTER COMPOUNDS
Two or more elements that are chemically joined (i.e. more than one type of atom)
Elements occur in a fixed ratio
Can be chemically separated
table salt
(NaCl)
glucose
(C6H12O6)
carbon dioxide
(CO2)

23. Atom to compound…

24. CLASSIFYING MATTER MATTER PURE SUBSTANCE MIXTURE Mechanical Mixture
Takes up space and has volume
PURE SUBSTANCE
A substance that is made up of only one particle
MIXTURE
A substance that is made up at least two different types of particles
Mechanical Mixture
A mixture in which you can distinguish different types of matter
SOLUTION
A uniform mixture of 2 or more substances (alloys)
ELEMENT
A substance that can not be broken down by chemical or physical means
COMPOUNDS
2 or more elements that are chemically joined
Heterogeneous
Homogeneous
Water (H2O)
Iron (Fe)

25. Pure Substance or Mixture?
Helium (He) Kool-aid Pepsi Salt (NaCl) Copper (Cu) Ketchup Water (H2O)

26. Pure Substance or Mixture?
Helium (He) Pure Substance (Element) Kool-aid Pepsi Salt Copper Ketchup Water

27. Pure Substance or Mixture?
Helium Pure Substance (Element) Kool-aid Mixture Pepsi Salt Copper Ketchup Water

28. Pure Substance or Mixture?
Helium Pure Substance (Element) Kool-aid Mixture Pepsi Mixture Salt Copper Ketchup Water

29. Pure Substance or Mixture?
Helium Pure Substance (Element) Kool-aid Mixture Milk Mixture Salt (NaCl) Pure Substance (Compound) Copper Ketchup Water

30. Pure Substance or Mixture?
Helium Pure Substance (Element) Kool-aid Mixture Milk Mixture Salt Pure Substance (Compound) Copper (Cu) Pure Substance (Element) Ketchup Water

31. Pure Substance or Mixture?
Helium Pure Substance (Element) Kool-aid Mixture Milk Mixture Salt Pure Substance (Compound) Copper Pure Substance (Element) Ketchup Mixture Water

32. Pure Substance or Mixture?
Helium Pure Substance (Element) Kool-aid Mixture Milk Mixture Salt Pure Substance (Compound) Copper Pure Substance (Element) Ketchup Mixture Water (H2O) Pure Substance (Compound)