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Thursday, October 25, 2012 Friday, October 26, 2012. Thursday, October 25, 2012 Friday, October 26, 2012. Water Quality Indicators/Treatment Quick Check Water Droplet Obituary. Create your “Water Droplet Obituary” . Warm Up :

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    1. Thursday, October 25, 2012 Friday, October 26, 2012 Thursday, October 25, 2012 Friday, October 26, 2012 • Water Quality Indicators/Treatment Quick Check • Water Droplet Obituary Create your “Water Droplet Obituary” Warm Up: Take out the EOG Prep Book, place it between you and your should buddy and turn to page 157. Read Chapter 21 silently. Answer “Lesson Review” Questions 1-3 Also, answer the “Discussion Question” on page 160. *LAST SCIENCE CLASS OF THE 1st QUARTER!* • Water Droplet Obituary – Describes the series of locations, events and experiences that droplet had in its “lifetime”. • Possible Starting Points: • Headwaters of Catawba River Basin • Precipitation from a rain cloud into a forest • Puddle near a factory • Hydroelectric Power Plant at Lake Norman • Carowinds Water Park • Possible Ending Points: • Pfiesteria infested swamp • Hog waste lagoon • In a bottle from a drinking water treatment facility • Waste water treatment center • Puddle in front of JMR • Homework: • Create your Water Droplet Obituary • Be sure to include • A specific start point • Your path through the water cycle • A specific end point Page 41 Page 42

    2. Tuesday, October 30, 2012 Wednesday, October 31, 2012 Tuesday, October 30, 2012 Wednesday, October 31, 2012 • Intro to Chemistry and Atoms Read Section 1.1 of Unit D in Text Answer Q 1-3 Warm Up: Wait for video questions Chemistry – The study of matter and atoms and the changes they can undergo Atoms – The building block and basic unit of all matter - Consist of a small charged particles Subatomic Particles – Atoms contain charged particles NucleusElectron Cloud (rings) Positive – Protons Negative – Electrons Neutral – Neutrons Parts of an Atom : Electron Cloud • Homework: • 1. Read Section 1.1 of Unit D in Text Answer Q 1-3 Nucleus Page 43 Page 44

    3. Connection to the Periodic Table of Elements (p. 20 D) Atomic Number – Number of Protons - This is how elements are arranged on the periodic table Neutral Atom –Protons = the number of Electrons Atomic Mass Number – Number of Protons + Neutrons - The total mass of the nucleus 6 C Carbon 12.001 Atomic Number = # of Protons / Electrons Symbol = 1st letter always capital Atomic Mass = Protons + Neutrons

    4. Reading Atoms on the Periodic Table 16 S Sulfur 32.066 13 Al Aluminum 26.982 11 Na Sodium 22.990 Protons: Neutrons: Electrons: Protons: Neutrons: Electrons: Protons: Neutrons: Electrons: Page 46

    5. Atomic Structure Notes Continued Bohr Model - model that shows where particles are located in atoms. Valence electrons – outermost energy level Carbon: 6 Protons How many valence electrons? 6 Neutrons 6 Electrons Page 46

    6. Bohr Model Practice: Use the information to make a Bohr model Carbon: 6 Protons 6 Neutrons 6 Electrons Nitrogen: 7 Protons 7 Neutrons 7 Electrons Oxygen: 8 Protons 8 Neutrons 8 Electrons Page 46

    7. Practice: Determine Protons, Neutrons and Electrons, Draw a Bohr Diagram 12 Mg Magnesium 24.305 5 B Boron 10.811 10 Ne Neon 20.180 Page 46

    8. Thursday, November 1, 2012 Friday, November 2, 2012 Thursday, November 1, 2012 Friday, November 2, 2012 • Practice Bohr Models • Finish Pure Substances vs. Mixtures Graphic Organizer • Bohr Models • Pure Substances vs. Mixtures • Warm up: • Atoms of the same element are alike / different. • Protons are positive / neutral / negative. • Protons are inside / outside the nucleus. • Neutrons are positive / neutral / negative. • Neutrons are inside / outside the nucleus. • Electrons are inside / outside the nucleus. • The overall charge of the nucleus is positive / neutral / negative. Pure Substances – same composition throughout (atoms, elements, compounds) Mixtures – physical combinations • Homework: • Practice Bohr Models • Finish Pure Substances vs. Mixtures Graphic Organizer Page 45 Page 46

    9. Monday, November 5, 2012 Wednesday, November 7 2012 Monday, November 5, 2012 Wednesday, November 7, 2012 • Finish Periodic Table worksheet • Introduction, Organization and History of the Periodic Table Warm up: Determine what element this Bohr model is representing. How did you come to this conclusion? Draw a Bohr model for Helium and Neon – can you make any observations that make these two alike in any way? Make a t-chart and compare and contrast mixtures and pure substances. • Homework: • Finish Periodic Table Worksheet • - Parts 1 and 2 ONLY Page 47 Page 48

    10. Matter • Has mass or weight • Takes up space (volume) • Cannot occupy the same space as other matter at the same time • Pure Substances • Has the same composition throughout • Can Occur Naturally • Mixtures • Formed when two or more substances are physically combined • Parts can be physically separated • Substances in a mixture retain their original properties • Element • Cannot be broken down into simper substances • Compound • Chemical combination of two or more different elements • Cannot be physically separated • Properties are entirely different properties of each element alone • Homogeneous • Parts of the mixture are evenly distributed • Heterogeneous • Parts of the mixture are not evenly distributed

    11. Group or Family(All have same number of valence electrons) Non-Metals Nobel Gasses Period or Row(One proton is added from left to right) Metaloids Metals

    12. Chinese Periodic Table

    13. Chemistry Careers • Food Chemistry • Make up • Gatorade • Fireworks • Forensic Detectives • Pharmacist • Cologne/Perfume • Toothpaste/mouthwash/hand lotion, etc

    14. Thursday, November 8, 2012 Friday, November 9, 2012 Thursday, November 8, 2012 Friday, November 9, 2012 • Periodic Table Families – Part 3 • Metals, Non-Metals and MetalloidsPeriodic Table Basics Activity • Finish Periodic Table Basics Activity • Warm Up: • Identify each container as a beaker full of elements, compounds, heterogeneous mixture or homogeneous mixture. • Homework: • Finish Periodic Table Basics Activity Page 49 Page 50

    15. Families of Elements on the Periodic Table – Part 3

    16. Metalloids Properties of …. Non-metals • Most are gases • Solid non-metals are brittle • Not shiny, but dull • Poor conductors of electricity and heat • Tend to gain electrons in chemical reactions Metals • Most are solids • Can be shaped & pulled into wires • Shiny / lustrous • Good conductors ofelectricity/heat • Tend to lose electrons in chemical reactions • Most are Solids • Can be shiny or dull • Can be shaped & pulled into wires • Conductsbetter than nonmetals but not as well as metals

    17. Tuesday, November 13, 2012 Wednesday, November 14, 2012 Tuesday, November 13, 2012 Wednesday, November 14, 2012 • History of the Periodic Table • Periodic Eggs/Atomic Cube Activities • Study for Quiz • History of the Periodic Table • Dimitri Mendeleev (1834 – 1907) • Siberian • Founded the periodic table (1869) • Organized by Atomic Mass and properties • Could predict where new elements would go on the table • Henry Moseley (1887-1915) • Studied elements using x-rays • Was able to slightly reposition the periodic table because he could see protons • Killed in WWI at age of 28 • Britain made a policy that restricts scientists from fighting in wars • Warm Up: • What are some characteristics the “Carbon Family” shares? • Homework: • Study for Quiz on Atomic Structure, Periodic Table and Pure Substances/Mixtures next class Page 51 Page 52

    18. Mendeleev’s Original Periodic Table

    19. Moseley’s Modern Periodic Table

    20. Thursday, November 15, 2012 Friday, November 16, 2012 Thursday, November 15, 2012 Friday, November 16, 2012 • Nuts and Bolts Activity • Announced Chemistry Quiz • Reflect on 1st Quarter – Make a T-Chart • Warm Up: • Create a concept map that has the topic of Chemistry in the middle and branches out into Atoms, Periodic Table, History and Matter. Then expand on each topic. • See below for example: Periodic Table Atoms Chemistry History Types of Matter • Homework: • Reflect on 1st Quarter, especially your science grade, and crate a t-chart that lists things you did well with and things you need to improve. Page 53 Page 54

    21. Monday, November 19, 2012 Tuesday, November 20, 2012 Monday, November 19, 2012 Tuesday, November 20, 2012 Finish Booklet so you can Enjoy your Thanksgiving break! Chemical vs. Physical Properties and Changes Booklet Warm Up: 1) Turn to your prospectus page and review the goals you set at the beginning of the year. 2) Reflect on your goals, did you meet them, did you perform the way you wanted to during 1st quarter. 3) Make new goals, in the space for your warm up (areas that you are strong, weak and need work at) for the 2nd quarter. Homework: Finish Booklet so you can enjoy Thanksgiving Break! Page 56 Page 55

    22. Ductility • The ability of a substance to be pulled into a wire Electrical Conductivity: describes how freely charges can move in a material. Copper is often used to make wiring because it is ductile and it has a high electrical conductivity.

    23. Monday, November 26, 2012 Tuesday, November 27, 2012 Monday, November 26, 2012 Tuesday, November 27, 2012 Contrast Physical and Chemical Changes Phase Change Lab Data and Analysis Warm Up: Copy this T-Chart Temp. (°C) Time (min) Time (min) Temp. (°C) Physical Changes Chemical Changes 0 .5 1 1.5 2 2.5 3 3.5 15 16 16.5 17 17.5 18 18.5 19 19.5 30 • Homework: • Finish Booklet • Lab Graph and Analysis Questions Page 57 Page 58

    24. Physical and Chemical Changes • Are reversible • Changes in energy alters state of matter • Solid • Liquid • Gas • Irreversible • Always forms new substance(s) • Atoms get rearranged • Energy changes breaks bonds and/or creates new bonds

    25. Wednesday, November 28, 2012 Thursday, November 29, 2012 Wednesday, November 28, 2012 Thursday, November 29, 2012 Evidences of a Chemical Reaction Notes Legal Size Study Sheets • Warm Up: • Phase Changes Handout • Complete questions 1-6 • Evidences of a Chemical Reaction • (Draw in pictures of the demos as we do them) • Color Change – bleach added to water with food coloring will take away the color 2. Formation of a Precipitate – When you add ammonia to a mixture of water and alum, you see a white precipitate • 3. Formation of a Gas – • Hydrogen Peroxide + yeast O2 • - A glowing splint will re-light when added to test tube • Baking Soda + vinegar CO2 • - A burning splint will go out when added to test tube • c) Zinc + hydrochloric acid H2 • - The zinc disappears and you see bubbles (gas) 4. Temperature Change – Endothermic – Energy taken in – gets colder -ice pack Exothermic – Energy given off – gets hotter - hand warmers Homework: Legal size study sheets Page 60 Page 59

    26. Law of Conservation of Matter There is no observable change in the quantity of matter during a chemical reaction or a physical change. In other words, matter cannot be created nor destroyed. It is just converted from one form to another Chemical Equations • Show formulas for substances in the • reaction • Left of arrow = reactants • Right of arrow = products • Arrow = yields or produces • Mass of reactants must equal products!! Page 60 Page 59

    27. Balancing Equations Example 1 • Subscripts = small # • Indicate # of atoms of elements • Coeffients = large # • Indicate # of molecules of compounds H2 + Cl2 HCl Na =1 Na = 1 Cl = 1 Cl = 1 Mass____ Mass____ Super Easy and Balanced!!

    28. Friday, November 30, 2012 Monday, December 3, 2012 Friday, November 30, 2012 Monday, December 3, 2012 Modeling Law of Conservation of Matter Ziplock Bag Chemistry Six Analysis Questions from Ziplock Bag Chemistry Lab • Warm Up: • In your own words, define the Law of Conservation of Matter. • Based on this law, solve the following problems: • 15g H + _? g Cl_35g HCl • ? g Na + _60 g Cl150g HCl • 22 g C + _38 g O2? g CO2 • 4. 18 g C + 36 g H2 + 28 O2? gC6H12O6 Homework: Finish Analysis Questions from Lab Today Page 62 Page 61

    29. Ziplock Bag Chemistry

    30. Thursday, December 6, 2012 Friday, December 7, 2012 Thursday, December 6, 2012 Friday, December 7, 2012 Law of Conservation of Mass Lab Lab Analysis Questions and Conclusion • Warm Up: • What is the law of conservation of mass? • Explain the difference between a chemical and a physical change. • What are the signs of a chemical change? Open System – there is an opening through with materials like gases can escape Closed System – there is note an opening through with materials like gases can escape Affect on Law of Conservation of Mass – discuss with shoulder buddy and record notes Affect on Law of Conservation of Mass Lab Homework: Lab Analysis Questions and Conclusion Page 64 Page 63

    31. Monday, December 10, 2012 Tuesday, December 11, 2012 Monday, December 10, 2012 Tuesday, December 11, 2012 Finish Personal Statement for Light Bulb Activity Light Bulb Comparison Activity Warm Up: Review the graph below: Locate the Melting/Freezing Point. Locate the Boling/Condensation Point. Explain why the temperature is not changing on these portions of the graph. Homework: Finish Personal Statement for Light Bulb Activity Page 66 Page 65

    32. Wednesday, December 12, 2012 Thursday, December 13, 2012 Wednesday, December 12, 2012 Thursday, December 13, 2012 Research Your Light Bulb Choice Light Bulb Discussion – Written and Verbal Warm Up: Identify the type of light bulb, next to the number, and provide pros and cons for that specific type of bulb. 1) 2) 3) 4) Homework: Find an article (online or print) that supports your choice in light bulb. Page 68 Page 67

    33. Incandescent • +Dimmable • +Warm, natural light • +Costs less up front • +Instant “on” • Not energy efficient • Costs a lot to run • Short life span • LED • +Long life span • +Saves 85% on energy costs • +Instant “on” • +Dimmable (10%-100%) • +Not sensitive to cold • Not easy to buy (hard to find) • Expensive out of pocket cost • Cool (bluish) light • Only shines directional • Halogen • +Dimmable • +Saves 30% on energy • +Natural light • +Low cost up front • +Mercury Free • Short life span • Sensitive to human touch (oil) • Can explode • CFL • +Energy Efficient • +Quiet (no buzzing sound) • +Environmentally friendly • +Lasts 8 times longer than incandescent • +Mid upfront cost • Contains Mercury (could be a hazard if broken) • Less dimming features • Not “instant on” • Sensitive to cold • Need to be recycled at a specific location

    34. Monday, December 17, 2012 Tuesday, December 18, 2012 Monday, December 17, 2012 Tuesday, December 18, 2012 Research for Project Energy Resources/Renewable Energy Project • Warm Up: • In your own words, define energy. • Where does energy come from? • List 3-5 sources of energy Conservation of Energy – If energy is gained, something else must have lost it How do we depend on energy? How do we use fossil fuels? Discuss these questions with your table: Where do these energy resources come from? How are our public lands connected to these resources? What is meant by the term “alternative energy”? What are some examples of alternative energy resources? Are there any alternative energy resources in this area? Homework: Use your “plan”, “gather”, information for your page of the group presentation Page 70 Page 69

    35. Most Common Renewable Energy Sources • - Hydroelectric - Geothermal • - Wind - Biomass • - Tidal - Solar • Questions each group needs to address: • How is the source used? • What are the advantages? • What are the disadvantages? • What does this type of energy source look like when in use? (pictures/diagrams) • Is there data to support this type of energy usage (good or bad)? • What is the impact on public lands? • How effective is the energy production? • How does this type of energy compare to the use of fossil fuels? • Is this technology being used globally or outside of the US?

    36. Wednesday, December 19, 2012 Thursday, December 20, 2012 Wednesday, December 19, 2012 Thursday, December 20, 2012 No Homework – Happy Holidays!!!! Energy Resources/Renewable Energy Project • Warm Up: • Go to your locker to get your technology (if you have any) to use for class today. • Create a rough sketch below of what your slide will look like for your presentation. Homework: NO HOMEWORK – ENJOY THE HOLIDAYS! Page 72 Page 71

    37. Wednesday, January 2, 2013 Thursday, January 3, 2013 Wednesday, January 2, 2013 Thursday, January 3, 2013 Reflect on your Group Presentation Energy Resources/Renewable Energy Presentations • Warm Up: • Define Energy. • Summarize the type of energy you researched in 3-5 sentences. Homework: Reflect on the pros, cons and shared workload of your presentation (paragraph or t-chart) Page 74 Page 73

    38. Friday, January 4, 2013 Friday, January 4, 2013 Check PAM and Complete Missing Work Energy Resources/Renewable Energy Activities • Warm Up: • Create a t-chart and compare and contrast renewable and nonrenewable energy. Homework: Check PAM and Complete ANY Missing Work for 2nd Quarter Enrichment Enrichment

    39. Monday, January 7, 2013 Tuesday, January 8, 2013 Monday, January 7, 2013 Tuesday, January 8, 2013 Create three examples of Energy Transformations Energy Transformations Warm Up: Types of Energy – Several types, including kinetic, sound, thermal, chemical, electrical, gravitational/potential energy Main source of all energy – the sun! A series of nuclear reactions cause atoms to release energy Nonrenewable vs. Renewable Energy - Nonrenewable - energy which is taken from the sources that are available on the earth in limited quantity and will vanish fifty-sixty years from now. Non-renewable sources are not environmental friendly and can have serious affect on our Fossil Fuels: natural gas, oil and coal - give off greenhouse gasses (CO2) when burned; very harmful to environment Renewable/Alternative Sources - energy which is generated from natural sources (sun, wind, rain, tides) and is by far the cleanest type of energy 1. 2. 3. 8. 6. 4. 9. 7. 5. Homework: Create three examples of Energy Transformations and Identify Usable and Unusable energy produced. Page 76 Page 75

    40. Energy Transfer Energy can be stored and transferred from one object to another. See Diagram 1 (left): Energy is transferred by electricity to the lamp, which transfers the energy to the surroundings by light. The light is useful and purposeful but the heat generated through this transfer is not. Diagram #2 (right): The thicker the line or arrow, the greater the amount of energy involved. This diagram for the lamp example shows that it transfers most of the energy by heating, rather than by light. Energy Conservation Notice that the total amount of energy transferred to the surroundings is the same as the amount of electrical energy. We say that the energy has been conserved. Energy is always conserved, it is never "lost" or "wasted", although some energy transfers are useful and some are not. Energy Video ClipQuick Check!

    41. Energy Transformations Lamp Human Body Computers Plants Chemical Chemical Mechanical and Heat Light and heat

    42. Check for Understanding http://www.youtube.com/watch?v=82tws-VTa28

    43. Wednesday, January 9, 2013 Thursday, January 10, 2013 Wednesday, January 9, 2013 Thursday, January 10, 2013 Study for Energy Quiz Energy Conservation and Transformations Activities • Warm Up: • Answer questions 26 – 28 in your notebook. These are from the last formative. Conservation of Energy Energy is always conserved, it is never "lost" or "wasted", although some energy transfers are useful and some are not. Energy Video Clip http://www.bbc.co.uk/bitesize/ks3/science/energy_electricity_forces/energy_transfer_storage/quiz/q30407261/ Homework: Study for Energy Quiz Light bulbs, Renewable and Non-renewable Energy, Types of Energy, Energy Transformations, Conservation of Energy Page 77 Page 78