1. Chapter 3 Objectives

2. OBJECTIVES 1. Describe how particles move in the 3 phases of matter. 2. Explain how, as temperature increases, particles move faster and farther apart, generally becoming less attracted to one another as temperature increases.

3. OBJECTIVES 3. Explain how gases have neither a determined shape or a definite volume. They assume the shape and volume of a closed container. 4. Explain how liquids have a definite volume, but take the shape of their container. 5. Explain how solids have definite shapes and volumes.

5. OBJECTIVES 6. Identify common phase changes. 7. Identify whether heat energy is absorbed or released during a phase change. Turn to p. 74 in text Turn to p. 6 in packet

6. OBJECTIVES 8. Predict that water will expand when it freezes.

7. OBJECTIVE S 9. Explain how temperature doesn’t change during phase changes. 10. Identify phase changes as examples of physical changes. Turn to p. 78

10. Phase Change diagram for Iron

11. Question of the Day

12. OBJECTIVES 10. Identify phase changes as examples of physical changes.

13. OBJECTIVES 11. Explain how all matter is made of atoms. 12. Explain how there are more than 100 elements. 13. Define and give examples of elements. Turn to page 90

14. Elements A pure substance made of only one type of atom

15. The Periodic Table Periodic Table of Elements

16. Elements Examples: - Oxygen (O 2 ) - Carbon - Hydrogen - Silver - Uranium

17. Elements Non-examples:  Water (H 2 O)  Carbon dioxide (CO 2 )  Air (a mixture- mostly nitrogen (78%) and oxygen (20%)  Steel (an alloy of carbon and iron)  Fire  Wood (a mixture)

18. OBJECTIVES 14. Define and give examples of compounds.

19. Compounds Substances made of two or more different elements chemically combined

20. Water H2OH2O Compounds

21. Sodium Chloride NaCl Compounds

22. Sucrose (table sugar) C 12 H 22 O 11 Compounds

23. Octane C 8 H 18 Compounds

24. Ethanol C2H6OC2H6O Compounds

25. Non-examples  Air (a mixture)  Eggs (a mixture)  Flour (a mixture)  O 2 gas (still an element)

26. Objectives 15. Define and give examples of mixtures. 16. Distinguish between elements, compounds and mixtures.

27. Air 78% nitrogen gas (N 2 ) 20% oxygen gas (O 2 ) 1-6 % water vapor (H 2 O) <1% carbon dioxide (CO 2 ) <1% other gases

28. Flatulence 59% nitrogen gas (N 2 ) 21% hydrogen gas (H 2 ) 9% carbon dioxide (CO 2 ) 7% methane (CH 4 ) 4% oxygen gas (O 2 ) <1% hydrogen sulfide (H 2 S)

29. Objectives 17. Define and give examples of solutions. 18. Identify the solute and solvent of a solution.

30. OBJECTIVES 19. Read and interpret line graphs, specifically, solubility curves.

31. OBJECTIVES