1. Classification of Matter Notes, Poem, Practice

2. Common Core Connection
Objective
Today I will be able to:
Differentiate between pure substances and mixtures
Differentiate between a element, compound, homogeneous or heterogeneous mixture
Informal assessment – monitoring student interactions and questions as they complete the practice
Formal assessment – analyze student responses to the exit ticket and practice
Common Core Connection
Build Strong Content Knowledge
Reason abstractly and quantitatively

3. Lesson Sequence Evaluate: Warm Up
Explain: Classification of Matter Notes
Engage and Elaborate: Element Compound Mixture Poem
Elaborate: Element Compound Mixture Practice
Evaluate: Exit Ticket

4. Warm-Up What is an example of a homogeneous mixture?
What is an example of a heterogeneous mixture?

5. Objective Today I will be able to:
Differentiate between pure substances and mixtures
Differentiate between a element, compound, homogeneous or heterogeneous mixture

6. Homework Matter Quiz Monday September 23
STEM Fair Due Friday September 27

7. Agenda Warm Up Classification of Matter Notes
Element Compound Mixture Poem
Element Compound Mixture Practice
Exit Ticket

8. Review Concept Maps

9. Classification of Matter Notes

10. Classification of Matter Notes
Pure Substance
Mixtures
Elements
Compounds
Homogeneous
Heterogeneous

11. Mixtures
Two or more substances together which are NOT chemically combined
Properties
- Substances keep separate identities and properties
- Substances may be present in any amount
- Substances can be separated by simple physical means (filtering, magnet, etc)

12. Mixtures
Heterogeneous - not the same throughout (trail mix, bird seed)
- Particles are large enough to be seen
- Mixtures separate on standing

13. Mixtures Homogeneous - the same throughout (salt water)
- Particles are small and not easily recognized – uniform mixture of particles
- Does not settle on standing

14. Mixtures Solution – example of a homogeneous mixture
- one substance dissolved in another (lemonade, ocean water, gold jewelry)
- Particles are very small and evenly spread out
- Cannot be separated by simple physical means

15. Separation of Mixtures
Filtration – used to collect solid particles on a filter – heterogeneous mixtures containing a solid phase
Evaporation – recover a solute from a solution

16. Separation of Mixtures
Chromatography – used to separate mixtures
Retention Factor (Rf value) – how far a compound traveled in a solvent

17. Separation of Mixtures
Distillation – a pure liquid is recovered from a mixed solution
Simple or Fractional – similar, except Fractional Distillation has an added component that better separates liquids

18. Separation of Mixtures

19. Elements
Pure substance that cannot be broken down into simpler substances by ordinary chemical means (Iron, Copper, Tungsten)

20. Elements All matter is composed of elements Have definite properties
Made up of one type of atom
Periodic Table organizes elements according to their properties

21. Compounds
Two or more different elements combine in a chemical reaction
New substances with new properties are formed
Elements combine in fixed proportions
- water (H2O) always has two hydrogen atoms and one oxygen atom

22. Compounds Examples of Fixed Proportions C3H7OH - Propanol
- 3 carbon, 8 hydrogen, 1 oxygen
(NH4)2O – Ammonium Oxide
- 2 nitrogen, 8 hydrogen, 1 oxygen

23. Compounds Two elements = binary compound (CO2)
Three elements = ternary compound (C6H12O6)

24. Element, Compound, Mixture Poem and Practice
Complete the practice at your desk . Please ask questions as you work through the problems

25. Exit Ticket Draw a sample that has two elements and two compounds.
Does your picture represent a pure substance or a mixture?