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 : - PowerPoint PPT Presentation
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
Transcript
Create your “Water Droplet Obituary”
Page 41
Thursday, October 25, 2012Friday, October 26, 2012
Page 42
Water Quality Indicators/Treatment Quick CheckWater 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 1-33. Also, answer the “Discussion Question” on
page 160.
*LAST SCIENCE CLASS OF THE 1st QUARTER!*
Homework: 1. Create your Water Droplet Obituary
o Be sure to include1. A specific start point2. Your path through the water cycle3. A specific end point
Thursday, October 25, 2012Friday, 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
Read Section 1.1 of Unit D in Text Answer Q 1-3
Page 43
Tuesday, October 30, 2012Wednesday, 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
Tuesday, October 30, 2012Wednesday, October 31, 2012
Nucleus
Electron Cloud
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
CCarbon12.001
Atomic Number = # of Protons / Electrons
Symbol = 1st letter always capital
Atomic Mass = Protons + Neutrons
Page 46
Reading Atoms on the Periodic Table
16
SSulfur32.066
13
AlAluminum 26.982
11
NaSodium22.990
Protons:Neutrons: Electrons:
Protons:Neutrons: Electrons:
Protons:Neutrons: Electrons:
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 Neutrons6 Electrons
Page 46
Bohr Model Practice: Use the information to make a Bohr model
Carbon:6 Protons6 Neutrons6 Electrons
Nitrogen:7 Protons7 Neutrons7 Electrons
Oxygen:8 Protons8 Neutrons8 Electrons
Page 46
Practice: Determine Protons, Neutrons and Electrons, Draw a Bohr Diagram
5
BBoron10.811
10
NeNeon
20.180
12
MgMagnesium
24.305
Page 45
Thursday, November 1, 2012Friday, November 2, 2012
Page 46
Thursday, November 1, 2012Friday, November 2, 2012
Homework:1. Practice Bohr Models2. 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 ModelsFinish Pure Substances vs. Mixtures Graphic
OrganizerBohr Models
Pure Substances vs. Mixtures
Pure Substances – same composition throughout (atoms, elements, compounds)
Mixtures – physical combinations
Page 47
Monday, November 5, 2012Wednesday, November 7 2012
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Monday, November 5, 2012Wednesday, November 7, 2012
Homework:1. Finish Periodic Table Worksheet
- Parts 1 and 2 ONLY
Warm up:
Finish Periodic Table worksheetIntroduction, 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.
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
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
Chinese Periodic Table
Chemistry Careers
• Food Chemistry
• Make up
• Gatorade
• Fireworks
• Forensic Detectives
• Pharmacist
•Cologne/Perfume
•Toothpaste/mouthwash/hand lotion, etc
Page 49
Thursday, November 8, 2012Friday, November 9, 2012
Page 50
Thursday, November 8, 2012Friday, November 9, 2012
Homework:1. Finish Periodic Table Basics Activity
Periodic Table Families – Part 3 Metals, Non-Metals and Metalloids
Periodic Table Basics ActivityWarm Up: Identify each container as a beaker full of elements, compounds, heterogeneous mixture or homogeneous mixture.
Finish Periodic Table Basics Activity
Families of Elements on the Periodic Table – Part 3
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
Page 51
Tuesday, November 13, 2012Wednesday, 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 TablePeriodic Eggs/Atomic Cube Activities
Warm Up:1) What are some characteristics the “Carbon
Family” shares?2)
Study for Quiz
Tuesday, November 13, 2012Wednesday, 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
Mendeleev’s Original Periodic Table
Moseley’s Modern Periodic Table
Page 53
Thursday, November 15, 2012Friday, November 16, 2012
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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.
Nuts and Bolts ActivityAnnounced 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 1st Quarter – Make a T-Chart
Thursday, November 15, 2012Friday, November 16, 2012
Chemistry
AtomsPeriodic Table
History Types of Matter
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 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.
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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
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.
Page 57 Page 58
Monday, November 26, 2012 Tuesday, November 27, 2012
Monday, November 26, 2012 Tuesday, November 27, 2012
Contrast Physical and Chemical Changes Phase Change LabData and Analysis
Warm Up: Copy this T-Chart
Physical Changes
Chemical Changes
Time(min)
Time(min)
Temp.(°C)
Temp.(°C)
0.511.522.533.5
15
1616.51717.51818.51919.5
30
Homework:•Finish Booklet•Lab Graph and Analysis Questions
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
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 O2
- A glowing splint will re-light when added to test tube
b) 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)
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
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
Law of Conservation of Matter
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!!
Balancing Equations Example 1
• Subscripts = small #– Indicate # of atoms of
elements• Coeffients = large #
– Indicate # of molecules of compounds
H2 + Cl2 HClNa =1 Na = 1Cl = 1 Cl = 1
Mass____ Mass____
Super Easy and Balanced!!
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 HCl2. ? g Na + _60 g Cl 150g HCl 3. 22 g C + _38 g O2 ? g CO2
4. 18 g C + 36 g H2 + 28 O2 ? gC6H12O6
Page 62
Homework: Finish Analysis Questions from Lab Today
Friday, November 30, 2012 Monday, December 3, 2012
Experiment Number
Reactants Observations(Include any evidences of chemical reactions)
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
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
Incandescent Halogen CFL LED
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
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Homework: Find an article (online or print) that supports your choice in light bulb.
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Wednesday, December 12, 2012 Thursday, December 13, 2012
Light Bulb Discussion – Written and Verbal
Wednesday, December 12, 2012 Thursday, December 13, 2012
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
Research for Project Energy 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
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?
No Homework – Happy Holidays!!!! Energy Resources/Renewable Energy Project
Wednesday, December 19, 2012 Thursday, December 20, 2012
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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.
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Homework: NO HOMEWORK – ENJOY THE HOLIDAYS!
Wednesday, December 19, 2012 Thursday, December 20, 2012
Reflect on your Group Presentation Energy 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.
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Homework: Reflect on the pros, cons and shared workload of your presentation (paragraph or t-chart)
Wednesday, January 2, 2013 Thursday, January 3, 2013
Check PAM and Complete Missing Work Energy 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 2nd Quarter
Friday, January 4, 2013
Enrichment
Create three examples of Energy Transformations Energy Transformations
Monday, January 7, 2013 Tuesday, January 8, 2013
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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 (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
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 ConservationNotice 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.
