East Cobb Advanced Content

**Welcome to Mrs. McMullan's 8th gradeAC Science website:
Feel free to contact me at twila.mcmullan@cobbk12.org
(be sure to include a SUBJECT line)

East Cobb's phone number: 770-578-2740 (I'm ext. 461)---I'd much prefer an e-mail!!

Holt Textbook Log-in: http://my.hrw.com

See Mrs. McMullan for a password

and username

Brainpop: www.brainpop.com (The password is now the same as the username.)

**Check Pinnacle at least once a week!!!

Good site for studying: www.studystack.com

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Sign up for ELEMENT project:

Tuesday=Anika (pretzels/lemonade), Megan (quiche), _______and _________

Wed= Rory (Alm brownies), __________, _____________, and __________

Thursday= ________, __________, _____________, and __________

Friday = ________, __________, _____________, and __________

Antimony

Boron--

Cadmium--Paige

Calcium--Miller

Carbon--Kurt

Chlorine--Kerri

Chromium--Jared (orange punch)

Cobalt--Megan (Spinach Quiche--Tuesday

Copper--Daniel (spinach dip)

Fluorine

Germanium

Hydrogen--Ryan

Iodine-Ari

Iron--Nathan (Hamburgers)

Magnesium--Rory (almond brownies)--Wed

Manganese- Maia (chicken barbeque)

Molybdenum

Nickel--Jeremy

Nitrogen--

Oxygen--Mei

Phosphorous--Tarik

Potassium--Justin (banana pudding)

Selenium--Maddie (yellow cake cupcakes with peppermints on top)

Silicon

Sodium--Corinne

Sulfur--Anika (cinnamon pretzels and lemonade)--Tuesday

Tin

Vandium--Isabel

Zinc--Max (chicken pot pie)

Sodium

- Potassium

- Calcium

- Magnesium

- Iron

- Phosporus

- Sulphur

- Chlorine

- Copper

- Zinc

- Iodine

- Fluorine

- Chromium

- Manganese

- Selenium

- Cobalt

- Molybdenum

- Nickel

- Tin

- Silicon

- Vanadium

- Cadmium
>>Find out what food your element is found in.

http://www.healthyeatingclub.com/info/books-phds/books/foodfacts/html/data/data5a.html

Useful websites for the project (online periodic tables):

http://education.jlab.org/itselemental/index.html

http://periodic.lanl.gov/default.htm

http://www.chemicalelements.com/

Ch 11--The BIG IDEA: Atoms are composed of small particles that determine the properties of the atom.

Vocabulary: atoms, molecules, proton, electron, neutron, nucleus, electron cloud,

amu, atomic number, isotope, mass number, atomic mass

Objectives:

>>Name and describe the parts of an atom.

>>Compare an ion and isotope.

>>Be able to calculate the mass number and atomic number of an atom.

>>Distinguish between atoms of elements and molecules that are found

in food.

State Standards:

S8P1: Students will examine the scientific view of the nature of matter.

http://education.jlab.org/elementmath/index.html

http://education.jlab.org/elementhangman/index.html

http://education.jlab.org/elementmatching/index.html --easy only

http://www.chemicalelements.com/show/electronconfig.html

http://www.quia.com/quiz/126796.html?AP_rand=302127227

Homework:

1. Ch 12 2-column notes by Thur, Jan 7th

2. Element project (food and baby book) due by Friday, Jan 8th

3. Know elements with atomic #1-20, 22, 24, 25-30, 33-36, 47, 50, 53-54, 74, 77-80, 82, 86, 88, 92, 94

Friday (12/18/09): Holiday "party" (stay in 6th period)

Have a wonderful winter break!!!--see you back Tuesday, Jan 5th.

Extra Credit (replaces 1-2 homework zeroes OR adds 5pts to a test OR adds 10pts to a quiz/lab): --due no later than Jan 6th (Wed)

Make a PowerPoint or poster about

1. particles that are smaller than protons, neutrons, and electrons.

2. OR Boyles and Charles Laws

3. molarity, molality, and normality

---------------------After Winter Break..

Ch 12--The BIG IDEA: Elements are organized on the periodic table according to their properties.

Vocabulary: period, group, alkali metal, alkaline-earth metal, halogen, noble gas

Objectives:

>>Explain how elements are arranged in the modern Periodic Table.

>>Compare/contrast the properties of metals, nonmetals, and metalloids (know location

on the periodic table).

>>Describe the properties of the elements in the groups in the periodic table.

State Standards:

S8P1.f: Recognize that there are more than 100 elements and some have

similar (chemical and physical) properties as shown on the Periodic Table of Elements.

Monday (1-4-10): Teacher Workday

Tuesday (1-5-10): Welcome back--HAPPY NEW YEAR

Show ATOM powerpoint from Wheeler High School

Practice (again) drawing atoms, ions, and isotopes

page 323, Math Focus--if time permits

Brainpop: Periodic Table of Elements

http://www.funbrain.com/periodic/index.html

http://education.jlab.org/elementcrossword/index.html

http://education.jlab.org/elementmatching/index.html --if time permits

http://education.jlab.org/elementflashcards/index.html --if time permits

Homework: Element/symbol quiz twice this week (semi-pop quiz)

Ch 11-12 test Monday

1. Ch 11 textbook work (if you did not get an "A" on the ch 11 test): due Wed.

B-work: page 325 #2, 3, 4, 9

C- and below work:

.....page 325 #2, 3, 4, 9

.....and pages 328-9 #1-5, 7, 9, 10, 14, 19-21

2. Ch 12 2-column notes by Thur, Jan 7th

3. Element project (food and baby book) due by Friday, Jan 8th

4. (be ready for multiple quizzes any day this week and/or next week: know elements with atomic #1-20, 22, 24, 25-30, 33-36, 47, 50, 53-54, 74, 77-80, 82, 86, 88, 92, 94

Wednesday (1-6-10): Quiz?

Alien Periodic Table

http://www.quia.com/cb/8167.html

Thursday (1-7-10): Quiz?

Brainpop: Metals

Periodic Table--"The final four"

If time permits, begin presenting Element project (due by tomorrow)

Friday (1-8-10): Quiz?

Present element project

Homework: read chapters 13-14 (take 2-column notes)

Ch 11-12 test Monday

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Monday (1-11-10): Ch 11-12 test (come in 8:15am Monday if absent)

Go over chapter 13, section 1 (Electrons & Chemical Bonding)--PowerPt

1. Chemical Bonding--when electrons are shared, gained, or lost (new substance)

2. Valence electrons=electrons in the outermost energy level

Example: Oxygen=6, Sodium=1

Try: magnesium with model

>>Periodic Table with electron configurations:

http://www.chemicalelements.com/show/electronconfig.html

3. Periodic table tell the valance number (ex: Group 1=1 valence electron)

Note: groups 3-12 do not have this rule

4. Atoms bond with other atoms that "complete them"

5. Noble gases (group 18) rarely bonds with other atoms--8 valance electons (full)

>>3 e-activities Visual Concepts from HOLT

CHEMICAL BONDING (how moleculear form) (chapter 13)—ionic, covalent, metallic

1. Periodic Table with electron configurations:

http://www.chemicalelements.com/show/electronconfig.html

2. Lewis Dot model

Homework:

Textbook Questions for ch 12 (due Tuesday):

If "A" on ch 11-12 test=none

If "B" on ch 11-12 test:

--page 343 #3, 7

--page 351 #1-4, 5, 7, 10

If "C" or below on ch 11-12 test:

--page 343 #3, 7

--page 351 #1-4, 5, 7, 10

--pages 354-355 #1-4, 6-10, 18, 19

Draw an atom and tell the valance number of:

neon, aluminum, sulfur, and argon

Which of these is least likely to bond with another atom?

Tuesday (1-12-10):

Go over chapter 13, section 2 (Ionic Bonds)

1. Ionic Bonds--when electrons are transferred from one to another atom

(fills outer level of all atoms involved--all happy:)

Ex: Calcium Carbonate (chalk): CaCO3)

2. Ions= positive or negative atom (add or subtract electrons)

3. Atoms on the left side (including metals) of the periodic table tend

to form positive ions (lose electrons)

Atoms of the right side (nonmetals--not including noble gases) tend to form

negative ions (gain electrons) (--ide like chloride and oxide)

4. Example: Sodium=bursts into flames when placed in water

Chlorine gas=toxic

Sodium Chloride (NaCl)= salt (DRAW to show ionic bonding)

5. What is the charge of an ion that has 12 protons and 10 electrons.

Write it ionic symbol.

6. Draw potassium (K) and fluorine (F) --can they form an ionic bond?

7. Draw an atom of iron, sulfur, and zinc. Which 2 will form an ionic bond?

>>e-activities Visual Concepts from HOLT

Wednesday (1-13-09):

Chapter 13, section 3 (Covalent and Metallic Bonds)

1. ex: water, sugar, oxygen, wood

2. usually have low melting/boiling points and are brittle if solid

3. SHARE electron(s) --requires less energy

4. Two non-metals can combine with covalent bonding (ex H2)

5. Ex: Water molecule (must be covalently bonded)

6. (Lewis) electron-dot diagram to show valance electrons (page 373)

--cereal dot diagram, then make water, ammonia (NH3)

methane (CH4) and hydrogen sulfide (H2S)

7. diatomic molecules (hydrogen, oxygen, nitrogen, flourine,

chlorine, bromine, and iodine)

8. other important molecules: soap, plastic, proteins

9. metallic bonds--formed by attraction between positively charged

metal ions and electrons around them (outermost electron

levels overlap--more freedom of movement compared

to covalent bonds)

10. metals conduct heat & electricity, are ductile (wires) and malleable (sheets)

>>E-activity Visual Concepts from HOLT

Good website: http://www.ausetute.com.au/lewisstr.html

Thursday (1-14-10):

>>Chemical bonding concept map (online)

Ch 13 e-activity (Virtual Investigation)

Begin:

Draw electron-dot models then make gumdrop models--quiz/lab

Note:

1. Atoms that do not easily lose electrons form covalent bonds (and vv)

2. Molecules form from covalent bonds.

3. Covalent is usually 2 non-metals, while ionic are usually metal with nonmetal

1. zinc and zinc

2. oxygen and nitrogen

3. phoshorus and oxygen

4. magnesium and chlorine

Review how to use the periodic table to find valance numbers

(refer to text page 367#6 and page 381#15)

Review websites:

http://www.quia.com/jq/19617.html

http://www.quia.com/quiz/126704.html?AP_rand=955568262

http://www.quia.com/quiz/126795.html?AP_rand=1358657211

http://www.quia.com/rr/42896.html

http://www.quia.com/quiz/144845.html?AP_rand=1841000221 (For #1: P=6th level)

Enrichment: http://www.quia.com/rr/4283.html

>>Ch 13 test Monday

Friday (1-15-09): Subst

Bill Nye, Chemical Reactions

Ch 4, 11-13 CRCT Prep questions (pages 110-11, 304-5, 330-1, 356-7. 382-3)

Homework: finish CRCT prep questions by Monday

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Jan 18=MLK Holiday--no school

Jan 29=MSP Subst

Jan 25-29=Conf Week

Feb 5= subst

Feb 15=Teacher Workday

Feb 23=6th grade fieldtrip

Mar 12=MSP Subst

Ch 13 textbook work:

Page 367 #2, 4-7 (for #6--use periodic table)

page 371 #3, 4, 7, 8

page 377 #3, 4, 5, 6, 7, 8

Page 380 #1-5, and 7-12, 14-16, 18 (use periodic table for #15)

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CHEMICAL REACTIONS (chapter 14)—balancing equations

Bill Nye, Chemical Reactions
Brainpop: Chemical Equations
Balancing Equations: http://www.wfu.edu/~ylwong/balanceeq/balanceq.html

http://www.wfu.edu/~ylwong/balanceeq/combust.html

http://education.jlab.org/elementbalancing/index.html

http://www.chem.vt.edu/RVGS/ACT/notes/scripts/bal_eq1.html

Chemistry Review:

http://www.chem4kids.com/

http://www.quia.com/jq/19617.html

http://www.quia.com/rr/31119.html

http://www.quia.com/quiz/126704.html?AP_rand=955568262

http://www.quia.com/quiz/126795.html?AP_rand=1358657211

http://www.quia.com/rr/42896.html

Chemistry/Basic Science Jeopardy:

http://www.quia.com/cb/8133.html

Adv. Chem Jeopardy:

http://www.quia.com/cb/8231.html

Adv. Chem Millionaire:

http://www.quia.com/rr/4283.html

Adv: http://www.quia.com/quiz/144845.html?AP_rand=1841000221

Ch 14 Day 1

Computer Lab:

Balancing Tutorial: http://www.wfu.edu/~ylwong/balanceeq/balanceq.html

http://www.wfu.edu/~ylwong/balanceeq/combust.html

http://www.funbasedlearning.com/

Practice: http://education.jlab.org/elementbalancing/index.html

http://www.chem.vt.edu/RVGS/ACT/notes/scripts/bal_eq1.html

If extra time: http://www.chem4kids.com

http://www.quia.com/rr/31119.html

Ch 14 Day 2: Finish gumdrop lab (make one molecule per person)

Quiz: from last week's video (notes)

Go over ch 14-1 Forming New Substances

Evidence of a chemical reaction (NEW substance is formed)

1. gas bubbles form (and/or a gas forms)

2. solid precipitate forms

3. energy is given off or taken in (light, heat, or electrical energy)

4. color change

Ex: sugar + sulfuric acid

Brainpop: Law of Conservation of Mass/Matter

Work on tonight's homework

Homework: page 391 #3, 4, 6 (2 reasons)

page 410-411 #11, 13

Ch 14—Day 3

Go over chapter 14-2 Chemical Formulas and Equations

Chemical formula= chemical symbols and numbers (ex: H2O) 2=subscript

ex: page 392-3

ex: vitamin C (ascorbic acid)= C6H8O6

ex: Ca(NO3)2

Mg(OH)2

Al2(SO4)3

Covalent bond prefixes (mono=1, tri=3, etc)--page 393

Is the following compound ionic or covalent? (p. 393) Write the chemical formula.

sulfur trioxide

calcium fluoride

phosphorus pentachloride

dinitrogen trioxide

lithium oxide

In a chemical equation: Reactants yields Products

(ex: page 394--carbon dioxide)

Be sure you are ACCURATE (ex: page 395)--include C and O

Because atoms are NEVER lost or gained, chemical equations must balance

(atoms just rearranged)--Law of conservation of mass/matter (mass/matter

is neither created nor destroyed in ordinary chemical and physical changes.

Coefficient (place in front of the symbol/formula)--tells how many molecules

Ex: 2H2O (page 396) --can change coef (not subscript) when balancing equations

Quick Lab page 397 (use 20 mL of each)

QUESTIONS:

a. What type of reaction occured? What obs support your answer?

b. What types of products were made (color, phase, etc.)

c. Did the mass change? What law does this support?

d. Would the results be the same in an open system (no ballloon)? Explain.

Homework: page 397 # 1-5, 7, 8

page 410-11 #4-6, 14, 15, 17, 20

Ch 14—Day 4 Finish yesterday's lab (baking soda and vinegar)

--including questions from Thursday (makeup if absent)

Quiz: Balancing Equations (come in 8:45am if absent)

Went outside to look at glucose + sulfuric acid

Homework: none (Magnet Testing Saturday)

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Ch 14—Day 5

Brainpop: Chemical Equations

Go over chapter 14-3: Types of Chemical Reactions

1. Synthesis Reactions--2 or more substances combine to make a new substance

(page 398): ex: NaCl

2. Decomposition Reactions--compound breaks down to for 2 or more simpler substances

--opposite of synthesis

(page 399)--ex: H2CO3

3. Single-Displacement Reactions--one element takes the place of another element in the compound

(page 399)--ex: Zn + 2HCl

Occurs if one element is more reactive than the other

4. Double-Displacement Reactions--reaction in which ions from two compounds exchange places

(often results in a gas and/or precipitate)

(page 401)--ex: NaCl + AgF

Quick Lab: Identify the type of reaction (4)--page 400 (practice balancing too)

Homework: Due Tuesday

page 401 #2, 4, 5

page 410-11 #3, 7, 10

Ch 14—Day 6:

Go over chapter 14-4: Energy and Rates of Chemical Reactions

Energy is needed to break chemical bonds in reactions

Energy is released when new bonds form (in the product)

Exothermic reaction= energy is release

ex: 2Na + Cl2 ------------ 2NaCl + energy

page 402

Endothermic reaction= energy is taken in

ex: 2H2O + energy --------2H2 + O2

ex: 6CO2 + 6H2O + energy --------- C6H12O6 + 6O2

Law of Conservation of Energy= Energy (as well as mass) cannot be created or destroyed

(just changed into various forms)

Page 403 QUICK LAB--calcium chloride solution with baking soda

Rate of reaction= the speed at which new particles form

Activation energy=the smallest amount of energy that molecules need to react

(ex: lighting a match from friction)

light could also be a source of activation energy

page 405--figure 4

4 factors affect the reate of reaction

1. temperature (higher temperature= faster reaction)

(ex: glow stick)

2. concentration (higher concentration= faster reaction)

3. surface area (more surface area=faster reaction rate)

ex: effervescent tablet

4. inhibitors (substance that can slow down or stop a chemical reaction)

ex: preservatives (slows down the growth of bacteria on food)

ex: penicillin prevents certain types of bacteria from making cell walls

5. catalysts (substance that speeds up a reaction)

ex: enzymes

Homework: Finish "balancing equation" practice questions if you

did not make an "A" on Friday's quiz--due Wed

page 407 #1, 2, 3, 4, 6, 7

page 410-11 #1, 2, 8, 9, 12, 22

Ch 14—Day 7: Finish/review ch 14 (test Thursday)

QUICK LAB--page 405 (change temp or surface area)

Homework: Study for tomorrow's test

Write formal lab for QUICK LAB or surface area demo (due Monday)

Due Monday: page 412-3 #1-11

Ch 14—Day 8 --Review balancing equations

Balancing Chemical Equation--photosynthesis (marshmallows)

Chapter 14 test (part 1)

Homework: study ch 14--part 2 of test Friday

Ch 14—day 9 Finish chapter 14 test

Homework: Lab Write-up due Monday (typed)

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Ch 15—Day #1: In class read and take 2-column notes over ch 15

(pages 418-437)--due Wed

Homework: Due Wednesday:

page 421 #2-4

page 427#2, 3, 4, 6-8

page 431 #2, 4-7

page 437 #3, 4, 7, 8

pages 440-441 #7-10, 11, 15, 16, 18, 21, 22

pages 442-3 #1-8

Ch 15—Day #2: Finish work from yesterday

Homework: Finish chapter 15

Ch 15—Day #3: Early Release Day

PRACTICE testing acids and bases

Brainpops: pH

Acids and Bases

Quiz: ch 15 (acids and bases)

Homework: Work ahead: start reading (with notes) ch 9-10

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Learn more about your learning style(s):

http://www.berghuis.co.nz/abiator/lsi/lsiframe.html

Mrs. McMullan's Website http://www.iKeepBookmarks.com/McMullan

Graphing website: http://nces.ed.gov/nceskids/graphing/classic/index.asp

Conversion links: http://www.onlineconversion.com/
for mass: www.convert-me.com/en/convert/weight

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Prentice Hall website: http://phschool.com/atschool/sci_exp_lep/index.html

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Last Modified: Friday, January 01, 2010

East Cobb Advanced Content

McMullan's PHYSICAL SCI

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