1. Topic: Pure Substances & Mixtures Date: 10/29/2012
Cornell Notes: Make sure that you have the Guided Notes sheet from up front, which you will attach into your notebook.
Topic: Pure Substances & Mixtures
Date: 10/29/2012

2. Pure Substances and Mixtures

3. Today’s Game Plan Catalyst 10 minutes Pure Substances and Mixtures
Raise ‘em up!!
Go with the Flow…Chart
5 minutes
Independent Practice/assign homework

4. Pure Substances
Composition is the same throughout and does not vary from sample to sample.
CANNOT be broken down by physical changes
Can be an element or compound.

5. Element Definition: substances in their simplest forms
Cannot be broken down by a physical or chemical change
Found on the periodic table
Made up of one type of atom

6. Examples of Elements: Hydrogen Carbon Lithium Gold
What are two other examples of elements not listed above? What do all elements have in common?

7. Compound
Definition: substance formed by the chemical combination of two or more elements
can be broken into simpler substances by a chemical change +
= Compound

8. Law of Definite Proportions
A compound is always composed of the same elements in the same proportions.
In other words, Carbon Dioxide (CO2) is always composed of 1 atom of C and 2 atoms of O.
If there are different amounts of carbon or oxygen, it is no longer carbon dioxide.

9. More Examples of Compounds

10. Mixture
Definition: two or more pure substances (elements or compounds) that are mixed together but NOT joined chemically
NOT a pure substance
Examples: The air we breath, gasoline for cars, the sidewalk on which we walk

11. Homogeneous Mixtures Uniform in composition and appearance
Same proportion of components throughout
Consists of two or more substances in the same phase
Also called solutions

12. Heterogeneous Mixtures
variable appearance and composition

13. Today’s Game Plan Catalyst 10 minutes Pure Substances and Mixtures
Raise ‘em up!!
Go with the Flow…Chart
Independent Practice/assign homework
5 minutes

14. Raise ‘em Up!
Look at the following example and with your partner determine if it is a heterogeneous mixture, homogeneous mixture, element, or compound
Chicken noodle soup
Strawberry banana smoothie
Coca-cola
Purified water
Helium

15. Chicken Noodle Soup

16. Pure Water

17. Tap Water

18. Pure Gold

19. Coca-Cola

20. Today’s Game Plan Catalyst 10 minutes Pure Substances and Mixtures
Raise ‘em up!!
Go with the Flow…Chart
Independent Practice/assign homework
5 minutes

22. Kool Aid has mass and takes up space

23. Can be separated by allowing water to evaporate

24. Same composition throughout

25. Go with the Flow…Chart
With your partner, look at the example on the board. Fill out the blank matter chart to determine the matter’s classification.

27. Today’s Game Plan Catalyst 10 minutes Pure Substances and Mixtures
Raise ‘em up!!
Go with the Flow…Chart
Independent Practice/assign homework
5 minutes