28 Sept. 2010

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# 28 Sept. 2010 - PowerPoint PPT Presentation

28 Sept. 2010. Take out homework: Lab report! Objective: SWBAT differentiate between matter and non-matter, and physical and chemical properties and changes. Do now: How many grams are in 4500 kilograms? Check for the correct number of significant figures. Directions.

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## 28 Sept. 2010

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1. 28 Sept. 2010 • Take out homework: Lab report! • Objective: SWBAT differentiate between matter and non-matter, and physical and chemical properties and changes. • Do now: How many grams are in 4500 kilograms? Check for the correct number of significant figures.

2. Directions • Classify these words into TWO groups. • Give a name to each group. • Add one more example to each group. • Raise your hand when you are done. SWBAT differentiate between matter and non-matter, and physical and chemical properties and changes.

3. Agenda • Do now • Homework check • Matter and Changes Notes, Examples and Demo • Pre-lab Homework: Week 4 Homework p. 1 Read lab worksheet SWBAT differentiate between matter and non-matter, and physical and chemical properties and changes.

4. Announcements • Bring a calculator to every class • I will let you know when you need your book SWBAT differentiate between matter and non-matter, and physical and chemical properties and changes.

5. Using Sig. Fig. to help you round Ex 1) How many meters are equal to 4560 kilometers? Ex 2) How many liters are equal to 4.610 milliliters? Complete the bottom of the Sig. Fig. and Rounding Classwork #2 a and b

6. SWBAT differentiate between matter and non-matter, and physical and chemical properties and changes.

7. Dog • Wind • Atoms • Soil • DNA • Clouds • batteries • Toothpaste • Electricity • A star • Juice • Sound • The ocean • Fear • Peanut butter • Saliva • Helium • Democracy • Car exhaust • Gasoline • Paper • Bacteria • A cell • Wisdom • Heat SWBAT differentiate between matter and non-matter, and physical and chemical properties and changes.

8. Share our classifications • How would a chemist classify these words? SWBAT differentiate between matter and non-matter, and physical and chemical properties and changes.

9. Matter and Changes

10. Matter: has volume (takes up space), and has mass • Examples of matter? • Is air matter? How do you know? • Matter can be solid, liquid or gas • Mass - amount of matter an object contains SWBAT differentiate between matter and non-matter, and physical and chemical properties and changes.

11. Air Takes up space demo • Anyone who can come up with a way to demonstrate that air has mass will earn 2 extra credit points towards their quiz! SWBAT differentiate between matter and non-matter, and physical and chemical properties and changes.

12. chemistry: the study of matter and changes to matter SWBAT differentiate between matter and non-matter, and physical and chemical properties and changes.

13. Physical Property – • a characteristic that can be observed without changing the substance’s composition. Examples: • Color Solubility • Odor Hardness • Density Melting point • Boiling point SWBAT differentiate between matter and non-matter, and physical and chemical properties and changes.

14. Physical change: A change that does not alter the chemical composition • rearranges molecules but doesn't affect their internal structures. Some examples of physical change are: • Examples: • boiling water • dissolving sugar in water  dicing potatoes

15. Chemical change: any change that results in the formation of new substances. - making or breaking of bonds between atoms. Examples: - gasoline burning - eggs cooking - bread rising - milk souring SWBAT differentiate between matter and non-matter, and physical and chemical properties and changes.

16. Ways you can tell a chemical reaction has occurred: • Energy is absorbed or given off • Heat • Light • Sound • Production of solid or gas from a liquid • (also happens with physical changes in states of matter) • Color • Odor • Bubbles

17. Chemical Property – properties of matter that can only be observed through a chemical change • Ex. Whether or not acid can corrode a certain metal • Ex. Whether sugar reacts with sulfuric acid SWBAT differentiate between matter and non-matter, and physical and chemical properties and changes.

18. 29 Sept. 2010 • Homework: Week 4 p. 1 • Objective: SWBAT differentiate between matter and non-matter, and physical and chemical properties and changes. • Do now: Give one example each for: • a. physical property • b. physical change • c. chemical change

19. Agenda • Do now • Homework check • Finish physical and chemical change notes • Lab! • Lab conclusion questions (due at end of period) Homework: none 

20. Announcement • There will be a professional photographer in the room this period. • Taking photos for the website and fund raising materials. • Just do your lab, and forget that she is here!!

21. Chemical or Physical Change? • burning paper • folding a piece of paper • the reaction of KI and Pb(NO3)2 • combustion of gasoline • hammering gold into a ring • cutting a diamond • acid rain “melting” a statue • a pile of old iron rusting • separating water into H and O by using electricity SWBAT differentiate between matter and non-matter, and physical and chemical properties and changes.

22. Write down one unique example of a physical change you see at school. SWBAT differentiate between matter and non-matter, and physical and chemical properties and changes.

23. Write down one unique example of a chemical change you see in your neighborhood. SWBAT differentiate between matter and non-matter, and physical and chemical properties and changes.

24. Pre-lab • New equipment • What to expect • Where to pick up materials and equipment

25. Physical and Chemical Properties Lab • Work with your group of 4. • Follow directions exactly and carefully. • All materials and equipment are at the front two tables: take only what you need. • If there is only one of something, use it at the reagent table. • Clean up, then answer the questions when you complete the lab. Due at the end of the period. WEAR GOGGLES AT ALL TIMES.

26. Homework None 

27. 30 Sept. 2010 • Grab your clicker! • Objective: SWBAT identify characteristics, and model particle movement of the three states of matter, and transitions between those states. • Do now: Describe one chemical change from your lab yesterday. How do you know it was a chemical change? Be specific.

28. Agenda • Do now • Notes on States of Matter and Transitions • Clicker Practice! Homework: Week 4 Homework p. 2 Bring your textbook tomorrow!

29. What do all of these things have in common? H2O Dihydrogen monoxide

30. States of Matter Solid Liquid Gas low temperatures high temperatures slow particle movement fast particle movement TAKES SHAPE AND VOLUME OF CONTAINER! FIXED VOLUME NO FIXED SHAPE FIXED VOLUMEFIXED SHAPE

31. SWBAT differentiate between matter and non-matter, and physical and chemical properties and changes.

32. Which state of matter…has a fixed volume and shape? • Solid • Liquid • Gas SWBAT identify characteristics, and model particle movement of the three states of matter, and transitions between those states.

33. Which state of matter…has no fixed volume or shape? • Solid • Liquid • Gas SWBAT identify characteristics, and model particle movement of the three states of matter, and transitions between those states.

34. Which state of matter…has fixed volume but no fixed shape? • Solid • Liquid • Gas SWBAT identify characteristics, and model particle movement of the three states of matter, and transitions between those states.

35. Which state of matter…takes the size and shape of its container? • Solid • Liquid • Gas SWBAT identify characteristics, and model particle movement of the three states of matter, and transitions between those states.

36. Which state of matter…takes the shape but not the size of its container? • Solid • Liquid • Gas SWBAT identify characteristics, and model particle movement of the three states of matter, and transitions between those states.

37. Which state of matter…can be compressed into a smaller volume? • Solid • Liquid • Gas SWBAT identify characteristics, and model particle movement of the three states of matter, and transitions between those states.

38. Which state of matter…exists at lower temperatures? • Solid • Liquid • Gas SWBAT identify characteristics, and model particle movement of the three states of matter, and transitions between those states.

39. Which state of matter…has medium particle movement? • Solid • Liquid • Gas SWBAT identify characteristics, and model particle movement of the three states of matter, and transitions between those states.

40. Which state of matter…has particles that vibrate slightly? • Solid • Liquid • Gas SWBAT identify characteristics, and model particle movement of the three states of matter, and transitions between those states.

41. States of Matter and Transitions(Phases) SOLID SUBLIMATION FREEZING DEPOSITION MELTING EVAPORATION LIQUID GAS CONDENSATION SWBAT identify characteristics, and model particle movement of the three states of matter, and transitions between those states.

42. 4 Oct. 2010 • Take Out Homework: Week 4 Homework • Objective: SWBAT review and apply vocabulary related to matter, classifying matter and separating mixtures. • Do now: What classification of matter can’t be separated physically, but can be separated chemically? Give one example of this.

43. Agenda • Do now • Finish notes on temperature and KE • Check Week 4 Homework • Review matter, classifying matter and separating mixtures vocabulary • Chromatography demonstration • Vocab Pictionary Homework: Week 5 Homework p. 1-3

44. Kinetic Theory • Why does temperature change the state of matter?

45. Kinetic Theory: all matter is made of particles that are always moving. • Temperature: - a measurement of Kinetic Energy (how fast particles are moving) • Measured in degrees Celsius or in Kelvin (which we will get to later) Absolute zero – the temperature at which all movement of particles stops - This has never been reached

46. Different states of matter have different amounts of kinetic energy • Solid  low • Liquid  medium • Gas  highest

47. Solid Liquid Gas low kinetic energy (KE) high kinetic energy (KE) SWBAT identify characteristics, and model particle movement of the three states of matter, and transitions between those states.

48. In any sample of matter, two forces are competing • Bond forces are trying to hold the molecules together • Kinetic energy is trying to pull the molecules apart • Sometimes, Kinetic energy can overcome bond forces

49. SWBAT identify characteristics, and model particle movement of the three states of matter, and transitions between those states.

50. Bond forces hold particles together. • Kinetic energy may be great enough to break bonds between particles (in a gas) SWBAT identify characteristics, and model particle movement of the three states of matter, and transitions between those states.