1. Essential Questions
How can one explain the structure, properties, and interactions of matter?
What causes matter to change from one state to another?
What happens during chemical reactions?
How is matter conserved during chemical changes?

2. Types of Mixtures

3. Mixtures

4. Mixtures are two or more substances that are mixed together but can be separated out because their atoms are not combined.

5. Heterogeneous
Homogeneous
Suspension
Solution
Colloid
Alloy

6. Solution
unsaturated saturated to supersaturated
The solutes are the substances that are being mixed in another substance.
The solvent are the substances that dissolve the solute

7. Solubility

8. Solution – a mixture in which substances are evenly dissolved in another and are too small to be seen. Solute + Solvent = Solution

9. Distillation (a method of separating a mixture)

10. 88% Cu (copper) and 12% Sn (tin)
Alloy
88% Cu (copper) and 12% Sn (tin)

11. Alloy – a type of mixture made up of elements that have the characteristics of a metal. (At least one of the elements must be a metal.)

12. Suspension

13. Suspension – a type of mixture where the particles separate after they are mixed.

14. Colloid
jello
Fog, whipped cream, mayonnaise, smoke

15. Colloid is a mixture where the substances are spread out evenly but not dissolved – a cross between a solution and suspension

16. Physical Properties and Physical Change

17. Volume

18. Density

19. Why do ships float – displacement of water
Buoyancy
Why do ships float – displacement of water

20. Thermal Expansion and Contraction
Why does water expand when it freezes

21. More Physical Properties
Elasticity
Melting Point
Odor
Polarity
Size
Density
Boiling point

22. More Physical Properties
Texture – rough, smooth, soft, fuzzy
Color
Moh’s hardness scale
Solubility

23. Physical Property is a way of describing an object without changing the substance of an object.

24. Physical Change Broken pretzel
H2O in three states of matter – solid, liquid, gas
Origami

25. Physical Change is a change in one or more of the physical properties.

26. Chemical Properties and Chemical Change/ Chemical Reactions

27. Ability to be poisonous
Chemical Property
Ability to catch on fire
Ability to rust
(Oxidation)
Ability to be poisonous
Ability to ripen
Ability to change when heated
sensitivity to light

28. Chemical Property describes the way a substance reacts with another substance

29. Chemical Change Burning Rusty nails (Oxidation) Poisonous
Ripe tomatoes
Yellowed newspaper
Cooked cake

30. Chemical Change produces new substances with new properties
Chemical Change produces new substances with new properties. Reactant and Products Conservation of Matter