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Create your “Water Droplet Obituary” Page 41 Thursday, October 25, 2012 Friday, October 26, 2012 Page 42 Water Quality Indicators/Treatment Quick Check Water Droplet Obituary Warm Up: 1.Take out the EOG Prep Book, place it between you and your should buddy and turn to page 157. Read Chapter 21 silently. 2.Answer “Lesson Review” Questions 1-3 3.Also, answer the “Discussion Question” on page 160. *LAST SCIENCE CLASS OF THE 1 st QUARTER!* Homework: 1.Create your Water Droplet Obituary o Be sure to include 1. A specific start point 2.Your path through the water cycle 3.A specific end point Thursday, October 25, 2012 Friday, October 26, 2012 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
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Read Section 1.1 of Unit D in Text Answer Q 1-3 Page 43 Tuesday, October 30, 2012 Wednesday, October 31, 2012 Page 44 Intro to Chemistry and Atoms Warm Up: Wait for video questions Homework: 1. Read Section 1.1 of Unit D in Text Answer Q 1-3 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 Nucleus Electron Cloud (rings) Positive – Protons Negative – Electrons Neutral – Neutrons Parts of an Atom : Tuesday, October 30, 2012 Wednesday, October 31, 2012 Nucleus Electron Cloud
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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 Connection to the Periodic Table of Elements (p. 20 D) 6 C Carbon 12.001 Atomic Number = # of Protons / Electrons Symbol = 1 st letter always capital Atomic Mass = Protons + Neutrons
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Page 46 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:
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Page 46 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
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Page 46 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
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Page 46 Practice: Determine Protons, Neutrons and Electrons, Draw a Bohr Diagram 5 B Boron 10.811 10 Ne Neon 20.180 12 Mg Magnesium 24.305
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Page 45 Thursday, November 1, 2012 Friday, November 2, 2012 Page 46 Thursday, November 1, 2012 Friday, November 2, 2012 Homework: 1.Practice Bohr Models 2.Finish Pure Substances vs. Mixtures Graphic Organizer Warm up: 1.Atoms of the same element are alike / different. 2.Protons are positive / neutral / negative. 3.Protons are inside / outside the nucleus. 4.Neutrons are positive / neutral / negative. 5.Neutrons are inside / outside the nucleus. 6.Electrons are inside / outside the nucleus. 7.The overall charge of the nucleus is positive / neutral / negative. Practice Bohr Models Finish Pure Substances vs. Mixtures Graphic Organizer Bohr Models Pure Substances vs. Mixtures Pure Substances – same composition throughout (atoms, elements, compounds) Mixtures – physical combinations
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Page 47 Monday, November 5, 2012 Wednesday, November 7 2012 Page 48 Monday, November 5, 2012 Wednesday, November 7, 2012 Homework: 1.Finish Periodic Table Worksheet - Parts 1 and 2 ONLY Warm up: Finish Periodic Table worksheet Introduction, Organization and History of the Periodic Table 1.Determine what element this Bohr model is representing. 2.How did you come to this conclusion? 3.Draw a Bohr model for Helium and Neon – can you make any observations that make these two alike in any way? 4.Make a t-chart and compare and contrast mixtures and pure substances.
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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
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Group or Family (All have same number of valence electrons) Period or Row (One proton is added from left to right) Metaloids Nobel Gasses Non-Metals Metals
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Chinese Periodic Table
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Chemistry Careers Food Chemistry Make up Gatorade Fireworks Forensic Detectives Pharmacist Cologne/Perfume Toothpaste/mouthwa sh/hand lotion, etc
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Page 49 Thursday, November 8, 2012 Friday, November 9, 2012 Page 50 Thursday, November 8, 2012 Friday, November 9, 2012 Homework: 1.Finish Periodic Table Basics Activity Periodic Table Families – Part 3 Metals, Non-Metals and Metalloids Periodic Table Basics Activity Warm Up: Identify each container as a beaker full of elements, compounds, heterogeneous mixture or homogeneous mixture. Finish Periodic Table Basics Activity
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Families of Elements on the Periodic Table – Part 3
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Properties of …. Metals Metalloids Most are solids Can be shaped & pulled into wires Shiny / lustrous Good conductors of electricity/heat Tend to lose electrons in chemical reactions Most are Solids Can be shiny or dull Can be shaped & pulled into wires Conducts better than nonmetals but not as well as 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 Non-metals
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Page 51 Tuesday, November 13, 2012 Wednesday, November 14, 2012 Page 52 Homework: 1.Study for Quiz on Atomic Structure, Periodic Table and Pure Substances/Mixtures next class History of the Periodic Table Periodic Eggs/Atomic Cube Activities Warm Up: 1)What are some characteristics the “Carbon Family” shares? 2) Study for Quiz Tuesday, November 13, 2012 Wednesday, November 14, 2012 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
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Mendeleev’s Original Periodic Table
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Moseley’s Modern Periodic Table
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Page 53 Thursday, November 15, 2012 Friday, November 16, 2012 Page 54 Homework: Reflect on 1 st Quarter, especially your science grade, and crate a t-chart that lists things you did well with and things you need to improve. Nuts and Bolts Activity Announced Chemistry Quiz Warm Up: 1)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: Reflect on 1 st Quarter – Make a T-Chart Thursday, November 15, 2012 Friday, November 16, 2012 Chemistry Atoms Periodic Table History Types of Matter
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Finish Booklet so you can Enjoy your Thanksgiving break! 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 1 st quarter. 3) Make new goals, in the space for your warm up (areas that you are strong, weak and need work at) for the 2 nd quarter. Page 55 Homework : Finish Booklet so you can enjoy Thanksgiving Break! Page 56 Monday, November 19, 2012 Tuesday, November 20, 2012 Chemical vs. Physical Properties and Changes Booklet Monday, November 19, 2012 Tuesday, November 20, 2012
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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.
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Page 57Page 58 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 Physical Changes Chemical Changes Time (min) Time (min) Temp. (°C) Temp. (°C) 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
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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
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Legal Size Study Sheets Evidences of a Chemical Reaction Notes Wednesday, November 28, 2012 Thursday, November 29, 2012 Page 59 Warm Up: Phase Changes Handout Complete questions 1-6 Page 60 Homework: Legal size study sheets 3. Formation of a Gas – a)Hydrogen Peroxide + yeast O 2 - A glowing splint will re-light when added to test tube b)Baking Soda + vinegar CO 2 - A burning splint will go out when added to test tube c) Zinc + hydrochloric acid H 2 - The zinc disappears and you see bubbles (gas) Evidences of a Chemical Reaction (Draw in pictures of the demos as we do them) 1.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 4. Temperature Change – Endothermic – Energy taken in – gets colder -ice pack Exothermic – Energy given off – gets hotter - hand warmers Wednesday, November 28, 2012 Thursday, November 29, 2012
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Page 59 Page 60 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 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!!
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Balancing Equations Example 1 Subscripts = small # – Indicate # of atoms of elements Coeffients = large # – Indicate # of molecules of compounds H 2 + Cl 2 HCl Na =1Na = 1Cl = 1 Mass____ Super Easy and Balanced!!
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Six Analysis Questions from Ziplock Bag Chemistry Lab Modeling Law of Conservation of Matter Ziplock Bag Chemistry Friday, November 30, 2012 Monday, December 3, 2012 Page 61 Warm Up: 1.In your own words, define the Law of Conservation of Matter. 2.Based on this law, solve the following problems: 1.15g H + _? g Cl _35g HCl 2.? g Na + _60 g Cl 150g HCl 3. 22 g C + _38 g O 2 ? g CO 2 4. 18 g C + 36 g H 2 + 28 O 2 ? gC 6 H 12 O 6 Page 62 Homework: Finish Analysis Questions from Lab Today Friday, November 30, 2012 Monday, December 3, 2012
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Experiment Number ReactantsObservations (Include any evidences of chemical reactions) Conclusions Physical Change Chemical Change Chemical Reaction 1 2 3 4 Ziplock Bag Chemistry
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Lab Analysis Questions and Conclusion Law of Conservation of Mass Lab Thursday, December 6, 2012 Friday, December 7, 2012 Page 63 Warm Up: 1.What is the law of conservation of mass? 2.Explain the difference between a chemical and a physical change. 3.What are the signs of a chemical change? Page 64 Homework: Lab Analysis Questions and Conclusion Thursday, December 6, 2012 Friday, December 7, 2012 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
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Finish Personal Statement for Light Bulb Activity Warm Up: Review the graph below: 1)Locate the Melting/Freezing Point. 2)Locate the Boling/Condensation Point. 3)Explain why the temperature is not changing on these portions of the graph. Page 65 Homework : Finish Personal Statement for Light Bulb Activity Page 66 Monday, December 10, 2012 Tuesday, December 11, 2012 Light Bulb Comparison Activity Monday, December 10, 2012 Tuesday, December 11, 2012 IncandescentHalogenCFLLED
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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) Research Your Light Bulb Choice Page 67 Homework : Find an article (online or print) that supports your choice in light bulb. Page 68 Wednesday, December 12, 2012 Thursday, December 13, 2012 Light Bulb Discussion – Written and Verbal Wednesday, December 12, 2012 Thursday, December 13, 2012
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Incandescent +Dimmable +Warm, natural light +Costs less up front +Instant “on” -Not energy efficient -Costs a lot to run -Short life span 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 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
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Research for ProjectEnergy Resources/Renewable Energy Project Monday, December 17, 2012 Tuesday, December 18, 2012 Page 69 Warm Up: 1.In your own words, define energy. 2.Where does energy come from? 3.List 3-5 sources of energy Page 70 Homework: Use your “plan”, “gather”, information for your page of the group presentation 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: 1)Where do these energy resources come from? 2)How are our public lands connected to these resources? 3)What is meant by the term “alternative energy”? 4)What are some examples of alternative energy resources? 5)Are there any alternative energy resources in this area? Monday, December 17, 2012 Tuesday, December 18, 2012
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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?
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No Homework – Happy Holidays!!!!Energy Resources/Renewable Energy Project Wednesday, December 19, 2012 Thursday, December 20, 2012 Page 71 Warm Up: 1.Go to your locker to get your technology (if you have any) to use for class today. 2.Create a rough sketch below of what your slide will look like for your presentation. Page 72 Homework: NO HOMEWORK – ENJOY THE HOLIDAYS! Wednesday, December 19, 2012 Thursday, December 20, 2012
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Reflect on your Group PresentationEnergy Resources/Renewable Energy Presentations Wednesday, January 2, 2013 Thursday, January 3, 2013 Page 73 Warm Up: 1.Define Energy. 2.Summarize the type of energy you researched in 3-5 sentences. Page 74 Homework: Reflect on the pros, cons and shared workload of your presentation (paragraph or t-chart) Wednesday, January 2, 2013 Thursday, January 3, 2013
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Check PAM and Complete Missing WorkEnergy Resources/Renewable Energy Activities Friday, January 4, 2013 Enrichment Warm Up: 1.Create a t-chart and compare and contrast renewable and nonrenewable energy. Homework: Check PAM and Complete ANY Missing Work for 2 nd Quarter Friday, January 4, 2013 Enrichment
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Create three examples of Energy TransformationsEnergy Transformations Monday, January 7, 2013 Tuesday, January 8, 2013 Page 75 Warm Up: Page 76 Homework: Create three examples of Energy Transformations and Identify Usable and Unusable energy produced. Monday, January 7, 2013 Tuesday, January 8, 2013 1.2. 3. 4. 6. 8. 9. 7. 5. 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 (CO 2 ) 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
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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 ClipEnergy Video Clip Quick Check!Quick Check!
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Energy Transformations Lamp Human Body Computers Plants Chemical Mechanical and Heat Light and heat
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Check for Understanding http://www.youtube.com/watch?v=82tws- VTa28
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Page 77Page 78 Energy Conservation and Transformations Activities Wednesday, January 9, 2013 Thursday, January 10, 2013 Warm Up: 1.Answer questions 26 – 28 in your notebook (see plastic sleeve). These are from the last formative. Study for Energy Quiz Conservation of Energy Energy is always conserved, it is never "lost" or "wasted", although some energy transfers are useful and some are not. Homework: Study for Energy Quiz Light bulbs, Renewable and Non- renewable Energy, Types of Energy, Energy Transformations, Conservation of Energy
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Page 79Page 80 Energy Quiz and Cell Organelle Pre-Assessment Friday, January 11, 2013 Monday, January 14, 2013 Warm Up: 1.Take out your notebook and review your notes for today’s quiz. Textbook – Read section 1.1 (Unit E) Homework: Textbook – Read section 1.1 (Unit E) Know the vocab terms on page 9E Answer questions 1-6 on p. 15E Friday, January 11, 2013 Monday, January 14, 2013
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Cell Organelle Pre-Assessment
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