This is the blog for my 40-week CHEMISTRY class.

6-6 --> 12 -13: Final exam per posted schedule. Course related videos (Andromeda Strain, Twilight Zone science theme, Home-2009). Students can make up missed or failed exams.


6-4-13: Continue with review activities from yesterday. Student can make up failed or missed exams.

6-3-13: We are preparing for final exam. A reference list of topics was handed out along with a fresh periodic table with other tables and an item bank of over 300 multiple choice questions covering the course.

5-31-13: We continued with calculations of acids and bases and saw a demonstration of La Chatlier's Principle.

5-30-13: We began to tie together chapters 13-15 with calculations from page 547. We also reviewed terminology from chapter 15.

5-29-13: Chapter 11 exam today.

5-28-13: Welcome back from Holiday. Each class saw two versions of an exciting example of a pyrotechnic demonstration whose products were steam, carbon dioxide, and potassium chloride salt. Since many students had not completed the video "Acid", I showed the last 15-20 minutes and collected the worksheet. The exam tomorrow covers chapter 11 sections 1, 2, and 4.

5-24-13: We completed the video acids or got close to the end in some classes. Students can complete the worksheet by watching the video on-line and submitting for grade when they return from holiday. The exam will be Wednesday 5/29. Students were asked to calculate pH and pOH by solving problems 1 & 2 on page 545.

5-23-13: We began watching Modern Marvels "Acid" (Here is the link: and students completed a worksheet as the video played. As interim reports are due tomorrow and many students are excused due to activities, the chapter 11 exam is again postponed until after the holiday. The Final exam will be the only other exam for the course.

5-22-13: I announced that the chapter 11 exam is postponed till Friday and will be open book and notes. We watched the World of Chemistry video titled: The proton in chemistry. I checked key terms for chapter 13 and we defined pH and pOH from chapter 15. Students can complete watching the video from through item 3 on the Reference tab on the left. We also saw a few short videos produced by the FMC corporation.

5-21-13: No class due to election day.

5-20-13: Students observed how the boiling point of water can be changed with pressure. I demonstrated how it is possible to boil water with ice by cooling the vapor space in a water only liquid/vapor system.

5-17-13: Students were provided chromatography kits for an extra credit project. The report should include the test strips, type of solvent, type of ink, and time sample was produced. the chapter 11 exam will be Wednesday. Students should have the ch 11 worksheets complete and the two lab sheets submitted for grade.

5-16-13: We observed capillary action in glass tubes of various diameters (we made small glass capillary tubes). 4th and 5th period classes also observed ink chromatography.

5-15-13: We discussed and witnessed capillary action in stretched glass tubes.

5-14-13: We had various demonstrations and discussions about surface tension and surfactants (floating paper clip and soap boats...).

5-13-13: Proper data was presented from Friday's lab for students to use in the event they did not get data on their own. Here is the lab data presented. I also showed a video of Rain X in action.

5-10-13: A new lab sheet (updated to match the new Nspire software) was distributed. I repeated the lab with step by step instructions demonstrating how the data is to appear. Students worked with what ever material they had not don yesterday.

5-9-13: Students conducted the lab demonstrated yesterday working with one of two substances (wax or napthalene).

5-8-13: I demonstrated the "freezing/melting of solids" lab with the Texas Instruments Nspire. Students were given a worksheet which help them define the melting and freezing of crystalline and amorphous solids.

5-7-13: We performed the contact angle lab and students are required to submit a completed lab worksheet by tomorrow.

5-6-13: 1st period began the "Contact angle" lab which has a worksheet that was distributed. 4th and 5th watched "Modern Marvels - Glue" from a You tube link: . There is a worksheet for this video available here: "Modern Marvels, Glue" .doc.

5-3-13: We covered vapor pressure and phase diagrams (CRWS 11.4). We had an "Exit ticket" quiz on phase diagrams.

5-2-13: Only 5th period met. Same as yesterday.

5-1-13: 1st and 4th period's watched "World of Chemistry #20, On the Surface". A video worksheet and yesterday's procedure was collected. (No class for 5th period today because of report card conferences.). This video and worksheet can be found as Item 3 on the reference tab on the left.

4-30-13: Students wrote a procedural method to compare viscosity between two liquids. "Write a step by step procedure to compare the viscosity of two liquids using a viscometer." Four types were demonstrated in class and there are may types available commercially on-line. This procedure will be collected along with the video worksheet for "World of Chemistry #20, On the Surface"

4-29-13: From information obtained in chapter 11 section 2, students were asked to list the four types of intermolecular forces in order from strongest to weakest and to justify the order they chose.

4-26-13: Students conducted the "drops on a penny" lab and learned about the effect of surfactants on the surface tension of a fluid. Students should complete CRWS 11.2 form the papers handed out yesterday.

4-25-13: Intro to IM Forces Ch 11, Key terms were checked and the CRWS for section 1-4 were handed out. An demonstration of water's behavior on a hot plate was shown and discussed. We reviewed Section 1 CRWS.

4-24-13: Test on chapter 12. Key terms for Chapter 11 (we are going backwards in the book). Are due tomorrow. Final exam schedule is as follows Seniors periods 1&7) on June 3, 2&6 June 4, Periods 3,4,& 5 on June 5th. All other students (grades 9, 10, and 11th): June 6th for Periods 1&7, June 7th for Periods 2 &6th, June 10th for periods 3&5, and June 11 for period 4 and all make ups. June 12th is Senior make-up exams.

4-23-13: I demonstrated "the balloon in a flask" as an example of properties of real gases. I handed out a review pack for the exam. Here the answers (# 14 is invalid hence the "X"): DCCAC ABBAD BADXA BCCCD ACDDD AABDB, Std Test prep: BCACB DABBD CA

4-22-13: We began a review for the exam on Wednesday covering chapter 12. I checked pages 5 and 6 of the worksheet pack and we reviewed some of those problems in class. We also listed the 8 gas laws covered in chapter 12 and by the exam.

4-19-13: We calculated the amount of oxygen gas that would result from the decomposition of 100 mL of 27% H2O2 then performed the experiement (Called "The Elephant's Toothpaste Demonstration". Students are to prepare a reference sheet for an exam on chapter 12. HW was only checked for 1st period class (Pages 5 and 6 of the chapter 12 pack - It should be complete now).

4-18-13: We reviewed and solved the problems from the last pack of the worksheet covering Dalton's Law of Partial Pressures and Grahams law of diffusion. The entire worksheet pack (Pages 1-6) will be checked for completeness tomorrow. The exam will be Tuesday or Wednesday next week. Key terms for Chapter 11 (Intermolecular forces) will be due by next Friday 4/26.

4-17-13: Reviewed the Absolute Zero lab worksheet, (collected it for grade) and practiced ideal gas law (p457 #55).

4-16-13: We again plotted data for new batches of gases to observe how their behavior follows Boyles, Charles and Gay-Lussacs Law. We then used lab equipment to obtain real data that followed Gay Lussacs Law to find absolute zero. Our pressure/temperature data was plotted and extrapolated to absolute zero. Students are to complete the lab sheet for HW.

4-15-13: Back to a few gas law basics with a worksheet that students were to complete in class for grade graphing Boyles, Charles and Gay-Lussacs law from data sets.

4-12-13: I posted answers to the HW. Students were to ask questions about computations using the ideal gas law. A do-now proactice included p447#53 and 55. As an exit ticket, student submitted the solution to p447 #58. I also demonstrated hw to determine the value of R, using a balloon, graduated cylinder, thermometer and manometer.

4-11-13: We reviewed the calculations from page 4 of the pack and began calculations using the ideal gas law (textbook page 435). For HW students are to solve #1-4 on page 435.

4-10-13: We reviewed selected problems 1-9 from page 4 of the worksheet pack. Students were asked to write the ideal gas law and define the gas law constant "R". For homework, students were asked to read sample problem E on page 435 and solve the practice problems at the bottom of the page.

4-9-13: WE began a review of calculations involving Bolye's, Charles', Gay-Lussacs, Avogadro's, and the combined gas laws by solving problems 1, 2, 3, and 9 from page 4 of the worksheet pack. For HW, students are to complete pages 1-4 from the pack.

4-8-13: We began a review of CRWS 12.2 calculating with Boyle's law and Charles' law. I emphasized converting temperatures to Kelvins before performing computations. Students were asked to solve p432 #5, 6, and 10.

4-5-13: Students were introduced to various of unit of pressure. We experimented h syringes of two different diameters to feel the atmospheric pressure and observe boyles law. Students continued working the problems listed in the 4/4 blog entry.

4-4-13: We saw gas demonstrations with the vacuum pump and bell jar inflating a flat basketball and bursting a balloon. Students are expected to complete practice problems for samples A-D on pages 421, 425, 428, and 431. Also students should complete CRWS 12.2.

4-3-13: Key terms for chapter 12 were checked and a worksheet pack (3 pages, six sides) covering all of chapter 12 was distributed. Students completed 12.1 from the pack and we discussed the effect of atmospheric pressure defining it value at sea level as 15 pounds per square in inch (Actually its established value is 14.696 psi but it does vary with the weather over a range of several %.).

4-2-13: Students were allowed to retake the quiz from 3/22 (a new version) or work on Key terms for chapter 12.

4-1-13: Welcome back from break. As many quiz scores were low, I reviewed the quiz and will administer a new one tomorrow. Key terms for chapter 12 will be checked Wednesday.

3-22-13: The quiz and project today mark the last third term assignments. 1st period will retake the quiz on Monday following break due to errors and disturbance. A new quiz (version C & D) has been prepared. Key terms for chapter 12 (Gases). Are due on Tuesday after spring break.

3-21-13: We reviewed calculations from chapter 9 sections 1 and 2 in preparation for a quiz tomorrow. The quiz will be based on problems like p319#7 and 12, and p314 #1-3. A reference sheet with sample calculations can be used on the quiz. The biography project and poster are due tomorrow.

3-20-13: We continued calculations uisng the sample and practice problems in chapter 9 sections 1 and 2. Students are expected to know how to calculate problems involving actual yield, theoretical yield, and % yield.

3-19-13: We continued calculations uisng the sample and practice problems in chapter 9 sections 1 and 2. Students are expected to know how to calculate problems involving limiting and excess reactants.

3-18-13: We reviewed the HW. To solve the problems, students are find mass ratios in reaction by multiplying the balanced reaction coefficient by the molar mass of each substances. Student should continue with additional HW by solving problems on page 307 (Practice 1-4) and 311 (Practice 1&2, and #4 a-c).

3-15-13: We performed sample calculations involving grams of one substance required to produce another substance using a balanced chemical reaction, molar, masses and percent composition. Students should work problems from chapter 9 section 1. The HW was not checkd today but will be on Monday.

3-14-13: HW was checked for grade and we reviewed the HW. Students should complete the last section of the WS.

3-13-13: We reviewed conservation of mass, molar mass, and percent composition in preparation for stoichiometric calculations. A worksheet was provided with four page sections. Students completed page 64 in class. For HW students are to complete P52 and p53.

3-12-13: We completed the video titled "The Standard Deviants Super Charged World of Chemistry". Fourth period also had a discussion of stoichiometry as it applies to kitchen chemistry (making a peanut butter and jelly sandwich).

3-11-13: Watched the review video titled "The Standard Deviants Super Charged World of Chemistry" as a way of filling in any gaps in the course material before we continue with Stoichiometry. Many students signed up for the biography project offered today. It is due 3/22, the day before spring break. This is the biography project paper. Biography Project.doc. You must sign up for a scientist in class

3-8-13: 1st period started yesterday's lesson. Other period watched "The Standard Deviants" chemistry review video. I will put together a biography project as a make up assignment for those with poor performance on the chapter 7 quiz.

3-7-13: Only 5th period met. Mole ratio was defined and explained. We looked at the sample problems on page 304. Students should continue with the sample on page 307.

3-6-13: We had a quiz with 9 questions like those from the samples in chapter 7.

3-5-13: We did a final review of problems that are to appear on the quiz tomorrow. 4th an d 5th period classes received a worksheet on calculating and converting with molar mass.

3-4-13: I handed out the CRWS for Chapter 7 section 2 and we continued reviewing these problems to prepare for the quiz Wednesday 3/6.

3-1-13: We continued a review of chapter 7 problems. A quiz on the nine types of problems was announced for Wednesday 3/6.

2-28-13: Students continued to work problems from chapter 7 (ther are lots of them. We went over the method of finding a formula from % composition (section 7.3). Students should know how to solve each of the practice problems listed with each of the chapter 7 sample problems (A-I)

2-27-13: We continued with problems from 7.1 and 7.2 learning how to calculate percent composition of the mass of atoms in chemical formulas.

2-26-13: Students were given six conversion factors to use for the problems in 7.1. Students should complete CRWS 7.1 and the practice problems from each sample problem in the text through p232..

2-25-13: We began our stoichiometry unit with problems from chapter 7 on using Avogadro's number. Students were given CRWSS for chapter 7 and I checked key terms for chapters 7 and 9 (except 4th period). We solved a few of the problems from the worksheet (#3)) and text (p228, 229). Exam scores were posted. Students should continue to work problems through section 7.1 and 7.2.

2-22-13: Hat day! We took our exam today on chapter 8. Key terms for chapters 7 and 9 are due Monday. Here is the extra credit: The miner's lamp (also as glass enclosed headlights on old bicycles and automobiles) uses water dripped on calcium carbide, CaC2, to produce acetylene, C2H2, in a double displacement reaction. Calcium Hydroxide must be washed out of the lamp base when the carbide is used up. The light comes from the combustion of acetylene in air. For extra credit, write balanced chemical equations, including states of matter, for these two reactions.

2-21-13: Today was a make-up work day in preparation for the chapter 8 exam tomorrow. Students can use a marked up copy of the reference sheet provided in class. 4th period watched the first 41 minutes of the 93 minute you tube version of the video "Home". Tomorrow is "Hat day". Any student who wears a hat in class will be awarded 1 point on their exam score. An extra credit will be offered featuring the two chemical reactions taking place on my hat, a calcium carbide miners torch: students must write the balanced reactions for the double displacement of calcium carbide with water and the combustion of acetylene gas. (If this is offered to me when I hand out the exam, the EC score will be doubled.

2-20-13: Students were asked to complete a constructed response on the activity series and the solubility tables (recovery of silver). The exam is postponed until Friday.

2-19-13: We reviewed CRWS 8.3 and 8.4 in preparation for our exam.

2-15-13: The chapter 8 exam will be 2/21 (Thursday). Students should prepaper by completeing CRWS 8.1->8.4 and Solve p489 30-32, p295 #48 a-d, p289 #10/11 a,e.

2-13 & 14-13: The classes are on split days due to report card conferences. Student are asked to complete CRWS for 8.4 for HW. Students are to define soluble, insoluble, and precipitate. Students are to compare the solubility rules with the solubility tables (p473). The chapter 8 exam will be next week.

2-12-13: We saw demonstration(s) of how to predict products from single displacement reactions and we reviewed items 10-14 on CRWS 8.3.

2-11-13: Students were instructed on how to use the activity series to predict the products of single displacement reactions. CRWS 8.2 and 8.3 were checked as homework due due. Sample problems on using the activity series were reviewed. 4th and 5th periods were administered the 3 question quiz on balancing chemical reactions.

2-8-13: We practiced a challenging balancing problem then had a 3-problem quiz on balancing equations. Students are to complete CRWS 8.3 for HW.

2-7-13: We identified the 5 classifications of chemical reactions discussed in text 8.3. Students are to classify the 30 reactions form teh balancing woarksheet.

2-6-13: No school due to Teacher professional development.

2-5-13: A substitute covered the class today as I was sick. Students should have been provided CRWS for 8.3 and 8.4. Students should also complete the 30 balancing equations problems (15 equations and 15 word problems).

2-4-13: We continued from 1-25 with a refresher on balancing chemical equations. I provided a worksheet with 15 word problems and 15 equations. Students are to work together teaching themselves in my absence to solve the problems on the worksheet. A get well e-mail will get you a few extra credit points for term 3 (offer expired).

2-1-13: Same as 1-30-13. As I am writing this 2/4, I cannot recall specifics.

1-31-13: Same as 1-30-13.

1-30-13: Students either took the midterm exam or watched one of two videos, the completion of Modern Marvels "Secrets of Oil" completing a worksheet at the video played for extra credit or "Eggs 101". Students who did not take the exam could use the period to catch up on missing term 2 work.

1-29-13: Students either took the midterm exam or watched Modern Marvels "Secrets of Oil" completing a worksheet at the video played for extra credit. Students who did not take the exam could use the period to catch up on missing term 2 work.

1-28-13: Midterms begin tomorrow. We reviewed the three practice problems from the "Polyatomic ions as a group" method described on page 273.

1-25-13: To help students prepare for the midterm (see schedule on 1-16 blog entry), here are ANSWERS FOR MIDTERM REVIEW (Standardized Test Prep from each chapter): 1: CCDAD BCCAB, 2: BCDCB CABAB B, 3: BDCAB ACCDB D, 4: CBAAA DCCAB D, 5: DBCDC DACBC CDA, 6:AACCB CBADB BC, 8:DBBBB AAABA DD. We reviewed CRWS 8.2 #5 and the three problems on page 271. Students are encouraged to study and solve the problems on page 273. The midterm will cover up to section 8.2 in our course work so far. To prepare for the mid term, students should review key terms, the website blog, and the publisher concept review worksheets distributed in class.

1-24-13: We looked at tomorrows HW, reviewing #1-4 on CRWS 8.2. We also solved the problems on P269, #1-4.

1-23-13: We talked about how chemical change is determined and I demonstrated the decomposition of water, showing how the products of the reaction have different chemocal and physical properties of the reactants. I checked and reviewed parts of CRWS 8.1 due today for HW. CRWS 8.2 is due Friday.

1-22-13: I checked key terms for chapter 8 (HW due today). We discussed activation energy, a new key term added to the list. Students were asked to complete P266, #17c and 17d in class. Then for HW complete CRWS 8.1 due tomorrow.

1-18-13: I handed out CRWS 8.1 and discussed how reactions (like physical changes) are exothermic or endothermic. We looked at a few sample reactions on paper. Students are to complete key terms for chapter 8 by Tuesday and CRWS 8.1 by Wednesday.

1-17-13: We had our quiz on chapter 6 followed by an extra credit (Element puns #1 and #2). The EC is due tomorrow. Key Term definitions for chapter 8 are due Tuesday.

1-16-13: I hereby publish the midterm schedule: Midterms will be Tue 1/29 (1+7) - Wed 1/30 (2+6) - Thu 1/31(3+5) - > Fri 2/1(4+make ups). We reviewed for the chapter 6 quiz tomorrow covering names and formulas of covalent compounds, the determination of chemical bond types, and Drawing Lewis Structures. Students were asked to review P. 216-217, #15, 18, 26, 32-34.

1-15-13: We reviewed resonance structures (except 1st period due to technical issues). We will have a quiz on chapter 6 Thursday.

1-14-13: We reviewed problems from 205 and 11-13 on CRWS 6.2. Finish CRWS 6.2 for HW.

1-11-13: A repeat of yesterday's lesson.

1-10-13: We had the keystone exam today and used the period (a short one) to review how double and triple bonds are illustrated with Lewis diagrams.

1-9-13: We had the keystone exam today and used the period (a short one) to make up any missing work or just chill out. I showed a video of the egg explosion we will see in chapter 8 as a demonstration.

1-8-13: I checked the HW (CRWS 6.1), reviewed some of the problems people had with those problems, then went on the naming covalent compounds using text page 206-207 and solving CRWS 6.2 #15-23.

1-7-13: We reviewed writing Lewis Structures for single bonded molecules and polyatomic ions. CRWS 6.1 is due for HW tomorrow.

1-4-13: We continued the work on CRWS 6.1 and 6.2. We started to look at how Lewis Structures (Electron dot diagrams) are drawn. Students were asked to solve p202 #1 and 2.

1-3-13: Short period today; We continued to work on CRWS 6.1 and saw/discussed a few illustrations from the textbook.

1-2-13: Welcome back from winter break. I handed out the CRWS pack for chapter 6 covering sections 6.1 and 6.2. Students were asked to begin and complete the CRWS for section 6.1 for HW (Due upon completion of our review). I will check key terms for chapter 6 (assigned 12/12) tomorrow.

12-21-12: Watched "Life without People" to help celebrate the end of the Mayan calendar. Note: our calendar ends on December 31. Have a peaceful and safe celebration.

12-20-12: Students took the chapter 5 quiz. We reviewed it. I handed out an extra credit puzzle due tomorrow.

12-19-12: Students completed a constructed response (#6) on ions, ionic compound names and ionic compound formulas in preparation for the quiz on chapter 5 tomorrow.

12-18-12: Students were asked to scan the chapter 5 review for items they had questions on. I also used class time to review the CRWS 5.3. I moved the quiz to Thursday.

12-17-12: We reviewed for the chapter 5 quiz to be given on Wednesday (5th period may get this quiz Thursday or Friday as we are still working on the objectives for the chapter). Students worked on p187 #1-13 and I gave the answers in class as a matter of review.

12-14-12: We had a small quiz (1st and 4th period's) on naming and writing formulas from ionic compounds. I announced a more significant quiz

12-13-12: A worksheet was obtained for naming and writing formulas for simple ionic compounds and polyatomic ionic compounds. Students used the grid of cations and anions to complete the worksheet which is due as HW tomorrow.

12-12-12: We continued with yesterday's work. I assigned new problems of #30, 31, 33, and 34 on page 184. We discussed the solutions to many of these problems and those on CRWS 5.3. 5 the period had a short quiz on names and formulas of ionic compounds. Key terms for chapter 6 were assigned as HW due upon completion of chapter 5.

12-11-12: We continued a review of naming and writing formulas for ionic compounds. Students were asked to work on p184, #25-28 which we reviewed in class.

12-10-12: We reviewed names and formulas for ionic compounds. I created a table of ionic fomulas for cations of 1+ to 4+ charge compounded with anions from 1- to 4- charge. We solved p180 #4-8 as part of this review.

12-7-12: I checked CRWS 5.3. Most students could not work these problems. We began a series of drills to learn names and formulas of ionic compounds. Once complete, we I will check the worksheet again. Students were asked to name Fe2O3 and KMnO4, Iron(II) Oxide and Potassium Permanganate. They were asked to write the formula for Ammonium Carbonate, NH4CO3. We learned why roman numbers are used in ion names and how the names of ionic compounds are the name of the cation followed by the name of the anion. The formulas are in the name order but have multipliers to make the compound electron neutral.

12-6-12: We reviewed CRWS 5.1 and discussed more about the formation of simple ions and their electron configuration. We had a short quiz comparing the electron configuration of an ion and its parent atom.

12-5-12: We studied by demo and in writing, the aqueous replacement reaction of aluminum for copper ions. We made copper dust in an exothermic reaction by dipping aluminum foil into a solution of copper(II) chloride.

12-4-12: I checked CRWS 5.1 (not 5th period) and we discussed a few of the answers. We will continue with these discussion in order to cover the information on that sheet. Students were introduced to the five properties of ionic compounds. I showed a large NaCl crystal and we saw table salt under a microscope to better appreciate its structure. We examined the "Salts and Solubility" simulation on the PhET website at (Students should explore this and other simulations). I showed a sample of evaporated tap water (5 gallons boiled down to 50 ml) to observe the minerals that precipitate from the solution. For HW due Friday, students are to complete CRWS for 5.3.

12-3-12: I checked key terms for chapter 5. I handed out a worksheet pack CRWS 5.1 to 5.3. Students are to complete CRWS 5.1 for HW tonight. We looked at how atoms become ions with several board examples.

11-30-12: Students completed constructed response #5 covering the development of the periodic table for grade. Key terms for chapter 5 are due Monday. We saw the results of reacting an aluminum soda in hydrochloric acid leaving just the plastic liner.

11-29-12: Student sat for the chapter 4 exam covering the periodic table development, groups and trends. An extra credit puzzle (Alien Periodic table) was provided. Key terms for chapter 5 are due Monday along with this puzzle.

11-28-12: We reviewed topics for the exam. Here is the list of periodic table developers:

Dobereiner - (1817) Developed the law of triads the first to recognize element groups (families)
Newlands - (1865) Developed the law of Octaves the first to recognize the periodic behavior of elements.
Mendeleev - (1896) Publishes a periodic table that predicts the properties of unknown elements.
Moseley - (1912) Used X-ray diffraction pattern complexity to order the elements by "Atomic Number"
Seaborg - (1945?) Created / separated the "f" block elements from the periodic table

11-27-12: Students arranged 21 element cards into 7 columns of the periodic table to determine the identity of nine unknown elements based on their property trends. Student are to prepare a reference sheet for the chapter 4 exam to be given Thursday.

11-26-12: We reviewed any unanswered questions from CRWS 4.1 and 4.2. We looked at the requirements of an activity we will have tomorrow titled "Mendeleev Lab of 1869".

11-19 to 21-12: Term 1 grades are posted and students are given an opportunity to make up some missing work while we watch and discussed the video "The Atomic Cafe".

11-16-12: We wrote a constructed response on groups and trends in the periodic table. Students received credit on after they wrote, scored, logged (summary sheet and clipboard) and filed it in their portfolio folder.

11-15-12: We looked at trends on the periodic table defining the difference between electronegativty and ionization energy. This was the text posted in class:
"Atoms exhibit property trends across the rows and down the columns most because of two features in their structure: A: Atoms get smaller as their shells become more complete but larger with each completed shell. B: Electrons resist the valence state and want to be in completed shells. They steal or share electrons with other atoms. (Half filled P & D's stick together)." We looked at P 140 to see the trend of melting and boiling points across a period.

11-14-12: Students were required to mark up groups on the periodic table like the back of their book as you will be responsible for know what group(s) any given atom belongs to. 1st period received credit for labeling the groups on a blue periodic table. checked. 4th and 5th periods watched "The Nuclear Boy Scout" a film about David Hahn based on the Ken Silverstein book "The Radioactive Boy Scout" (See reference tab for Ken's Harper Magazine article on the same topic for more information. 4th and 5th periods are responsible for labeling the periodic table.

11-13-12: We watched a few videos form the library below. I demonstrated the reactions of Sodium and Calcium metals with water. I checked CRWS 4.1 that was due for HW and assigned 4.2 for HW tomorrow.

11-12-12: No class today due to Veteran's day. Here is someting to do. Watch some chemistry videos!
New York chemistry teacher, Mark Rosengarten has a YouTube channel loaded with excellent reviews of basic and more advanced chemistry topics.
His entire library:
Just basic topics:
His more advanced topics:
Some cute songs:
His website contains lots more useful stuff:

11-9-12: Period 1: HW was checked, we watched the video "The Periodic Table"
Period 4: I demonstrated an alcohol lamp, acetone flammability, evaporative cooling, and the "Burning Penny" . Students are to write a lab report due Tuesday
according to the format provided in class (no longer than 4 pages).
Period 5: Same as 1 except that I forgot to check the homework.
All classes should finish CRWS for sections 4.1 & 4.2 for Tuesday.

11-8-12: We talked about the development of the periodic. We covered (or will soon finish) the contributions of Dobereneir, Newlands, Mendeleev, Moseley, and Seaborg. For HW, students are to complete the CRWS for 4.1.

11-7-12: Yesterday we had no class due to election day. I checked the chapter 4 key terms and handed out the CRWS for chapter 4. We answered number 1 on 4.1 and discussed two important trends to determine chemical properties of the atoms; 1 - Atomic Size, and 2 - The tendency for atoms to fill their valence shells so they have the electron configuration of an inert gas (column 18 element).

11-5-12: Students took the exam for chapter 3 and, upon completion, were handed an extra credit (due Wednesday), a blank periodic table and list of elements onto which they are to write names, symbols and atomic numbers.

11-2-12: Students wrote a constructed response on the electromagnetic spectrum and tested themselves on Dalton's 5 principals of atomic theory. The exam covering chapter 3 sections 1-3 is on Monday.

11-1-12: We reviewed topics from chapter 3 in preparation for the exam on Monday.

10-31-12: We missed a couple of days due to the storm (Sandy). Today we finished our activities on electron configuration. The chapter 3 exam is moved to Monday. For HW students are to write Dalton's 5 principles 5 times.

10-26-12: We continued to learn how to write notation and diagrams for electron configuration of the atoms. Some students observed the spectral lines of various gases using lamps and a spectrascope. Others used Pennies to help construct electron configuration diagrams. HW: Section 3.3 review. The exam, covering 3.1-3 will be Thursday. Students should write Dalton's 5 principles 5 times (This will be a HW next week)..

10-25-12: We continued to learn how to write notation and diagrams for electron configuration of the atoms. Students should be able to complete the section 3 review on page 99 (this was assigned as HW due Monday).

10-24-12: We continued learning about electron configuration. As a graded assignment, students marked up a periodic table (4th period was not yet checked). The "Make a mole" project was handed out as Extra credit" to celebrate mole day (10/23, as in 6.023 x 10^23 particles per mole). It is due by Friday 11/2). The pattern can be downloaded and printed from item 31 on the "Documents and extra credits" tab on the left

10-23-12: I handed out a worksheet pack to help us understand electron configuration. We began to learn how electron configuration is notated and marked up a periodic table with block labels (s, p, d, & f) and row labels (1s, 2s, .....2p, 3p,...3d, 4d,...4f, & 5f) to help us learn this topic. We drew an old fashioned Bohr diagram for iron.

10-22-12: We performed the "Identifying Isotopes from Models" (bags of beads) activity. 1st period class looked at more of the world of chemistry video "The Atom". Students are to write key tems for Chapter 4 by Friday.

10-19-12: We looked at the pHet simulations for "Build and Atom" and 'Nuclear Fission". Students are encouraged to explore these simulations on their own at I also assigned problems #43-48 on page 108 fom review of isotopes.

10-18-12: I checked the HW (CRWS 3.2). We discussed the discovery of the neutron. We learned about isotope names and symbols. Students were expected to solve the practice problems from samples A & B on text pages 86 and 89.

10-17-12: With PSAT testing for juniors administered today, only my 4th period class met for class. As many students started and thereby finished the exam late, hence were late for class, we watched entertaining science related videos so as not to exclude students from their hard earned right to an education; in the vernacular, leaving them in the dust as others plowed ahead down the long, windy road of science learning. Students were dismissed from school at 11:20.

10-16-12: All classes have now finished the Bill Nye Video and are required to submit the 13 section writeups. The CRWS for 3.2 was not completed by most students. We will check this again on Friday before reviewing it. In the meantime, we will watch the "World of Chemistry" Video titled "The atom" 1st period began watching this.

10-15-12: Another 7:35 to 7:41 quiz with 2:45 pm make up. We talked about atomic theory, reviewing Dalton, Thomson, and Rutherford. Students are required to complete CRWS 3.2 for tomorrow.

10-12-12: First period class had an open note quiz on Dalton's 5 principles that began at 7:35 and ended at 7:41 am. Late students are offered a make up quiz at 2:45 pm. My other classes had to create a graphic organizer of the electromagnetic spectrum from page 92 of the text. The EM spectrum line featured the different types of radiation and had the ends marked with long/short wavelength, high/low energy, and high /low frequency. 1st period student can get extra credit by showing me such a graphic organizer on Monday at before 7:40 am. We continued watching the Bill Nye video (1st period completed the video and submitted the video facts for grade). My other classes got to the 10th item in the video. Students who missed the video should read about it at: and watch it here: then submit video facts from each section.

10-11-12: Students received practice quiz for Dalton's 5 principles. We then continued the the Bill Nye video "Greatest Discoveries in Chemistry". Students are expected to write a summary of each discovery featured in the video to submit for grade once the video is complete.

10-10-12: Students received the CRWS pack for chapter 3. They were asked to write Dalton's 5 principles word-for-word from page 78 onto the appropriate section of the sheet. Students will be required to memorize these for the exam in about 3 weeks. We continued the the Bill Nye video "Greatest Discoveries in Chemistry". Students are expected to write a summary of each discovery featured in the video to submit for grade once the video is complete.

10-9-12: Coming back from a three day weekend: I checked HW (key terms from chapter 3) and we continued the the Bill Nye video "Greatest Discoveries in Chemistry". Students are expected to write a summary of each discovery featured in the video to submit for grade once the video is complete..

10-5-12: We continued the the Bill Nye video "Greatest Discoveries in Chemistry". Students are expected to write a summary of each discovery featured in the video. 4th period class did not watch the video but rather we had extended discussions on unit 1 and the upcoming unit 2 topics. Period 4 honors had a discussion about the mole and how it is used as a conversion factor in chemistry.

10-4-12: IN some classes we reviewed some of the exam problems (density graph...). In other classes we began the Bill Nye video "Greatests Diascoveries in Chemistry". Students are expected to write a summary of each discovery featured in the video.

10-3-12: Students took the exam for Unit 1. The exam will be curved to fit class performance. An extra credit puzzle was handed out post exam. For homework, students are to write teh key terms for chapter 3. The puzzle and HW are due Tuesday next week, the day we return from a three day weekend.

10-2-12: We reviewed for the exam with 40 multiple choice questions by playing the "Dry Erase Board" game. Candy was given to the groups who got the most answers correct. As promised, here are the answers to the 40 questions: ABDDD BDDBA ADABB ACBCA CACBB DCDCD CBCCD BABDC. Students are permitted a one page handwritten refernce sheet for use on the exam.

10-1-12: We reviewed the Solutions Graphic Organizer and the Matter and Energy worksheet. I then checked for grade its level of completeness from each student as this was due for homework today. I again announced the unit exam on Wednesday covering chapters 1 and 2. Students will be permitted to make up a one page handwritten reference sheet for use on the exam. For some reason, the grades for the matter and energy worksheet where not entered for 5th period. I will recorded grades for this assignment as late students hand them in but may not count it toward the term grade for this class (Unless I check the whole class again). Either way, the material is covered byt he exam on Wednesday..

9-28-12: Students wrote constructive responses to parts A and B for Constructive response #2b (SI, metric system). The scoring rubric was reviewed, students scored each others papers and recorded scores on the clipboard to receive credit for the assignment. Our goal is to improve performance on these types of open ended questions in order to prepare for the PSSA's given in he spring to 11th graders. We also looked at the chemical and physical changes in a candle in more detail with a demo and a few videos. We saw a magnesium reaction in dry ice produce black carbon and white magnesium oxide.

9-27-12: I checked the HW assigned 9/24 (a 10 point assignment). Students who showed it to me complete were awarded a 100% A+ on the assignment. Those that show it to me late, but before the unit exam later next week (Date to be determined) will be awarded 80%. Students obtained a worksheet titled "Matter and Energy / Solutions Graphic Organizer" covering chapter 2 topics. We discussed some of the problems in class. It is due as homework on Monday 10/1. I demonstrated and we discussed physical and chemical changes with a candle, magnesium metal and oxygen, two rusty shotput balls and aluminum foil, and vinegar with baking soda.

9-26-12: Yom Kippur Holiday - No school

9-25-12: We reviewed the quiz and homework (CRWS for Chp 1). From yesterday: HW students are to write the key term definitions for chapter 2. This will be due Thursday. We looked at the Vinegar and Baking soda reaction to determine that it was endothermic. A few classes got to see evidence that the gas produced was denseer than air and did not support combustion (i.e. a candle flame was extinguished when it was lowered into the reaction beaker.

9-24-12: I set up a distillation apparatus. Students were required to illustrate and label the drawing in their notes. We used this apparatus to distinguish between physical/chemical changes and endothermic/exothermic processes. I distilled water from ice and we observed various changes and energy flows. A two question quiz was offered requiring students to identify three physical changes and one chemical change from the demo and to label these changes as exo or endothermic. For HW students are to write the key term definitions for chapter 2. This will be due Thursday.

9-21-12: We opened class with an examination of Figure 5 on page 381 of the Chemistry textbook. We compared this to a similar diagram on page 74 of the physical Science Textbook (this diagram is missing the "Deposition" phase change process). We discussed how energy is conserved during phase changes and defined endo and exothermic processes by whether energy is released to or absorbed from the environment. We discussed several examples. We examined the element Iodine, which like dry ice, sublimes forming a purple gas; something we observed in a heated glass flask. We also saw this gas deposit crystals on the flask walls as it cooled. For homework due Monday 9/24, students are to complete the CRWS distributed in class on 9/19.

9-20-12: Tonight is back to school night. I look forward to meeting your parents. That aside, today the do-now assignment was to convert the temperatures of liquid nitrogen and dry ice into degrees Fahrenheit and Kelvins. Students were asked to use the equations in the physical science text, pages 422 and 423. Those temperatures are -195.8 degrees C and -78.5 degrees C respectively. I conducted a series of demonstrations involving dry ice and liquid nitrogen ending with the safe explosion of a water bottle. Every student got a chance to observe and handle dry ice and liquid nitrogen. Many students were able to see liquid CO2 in a pipette and liquid air in a deflated balloon. Everybody saw a pH color change in a 500 ml graduated cylinder as Carbonic Acid formed when CO2 dissolved in water.

9-19-12: Students were asked to check posted grade reports in the classroom. The report was described and students went throughthe process of figuring out if they missed any work. Students were given a Concept Review Worksheet (CRWS) covering chapter 1 sections 1 and 2. Students are expected to complete this worksheet for HW and it will be checked Tuesday 9/25. Students were shown a model (with my fingers) of solids, liquids and gases. We used this model to describe phases and phase changes in liquid nitrogen and dry ice. We learned about the NFPA safety label, the meaning of the section colors and the numbers (0-4 and red/yellow/blue). Students learned specific safety warnings regarding dry ice and liquid nitrogen as we will experiment with these material tomorrow.

9-14-12: I checked the HW from 9/10 (Key terms Chapter 1). Students were asked to read text pages 54-58 to learn about accuracy and precision in scientific measurement. Students were asssigned to solve practice problems 1-3 on page 59. I reviewed these in class. The determination of significant figures was discussed. The book lists rules that I think are vague, therefore I am offering the following rules as a clearer undertanding: Sig Figs.doc

9-13-12: We reviewed the unit conversion HW then organized our constructive response portfolio folders. Students wrote responses to parts A and B for Constructive response #1 (ramp x vs. y). The scoring rubric was reviewed, students scored each others papers and recorded scores on he clipboard to receive credit for the assignment. Our goal is to improve performance on these types of open ended questions in order to prepare for the PSSA's given in he spring to 11th graders. Key term definitions for chapter 1 will be checked tomorrow for grade.

9-12-12: We looked at unit conversion factors and the SI (metric) system of prefixes. Students were asked to use textbook pages 12-15 to help them solve problems #8-11 on page 19. For HW, students can practice #30-32 on page 32 and convert the speed of light (2.99x10^8 m/s into miles per hour).

9-11-12: We learned about lab equipment using a worksheet with 10 questions to guide our discussions some safe practices of handling chemicals. I demonstrated the "Methane Mamba" and students are required to write up and submit a "Demo Lab Report" on it. Many students completed this before the end of class. Those students who missed the demonstration can e-mail me a one page report from a you-tube video found from a search on the words "discrepant event". The e-mail must have the subject title "Methane Mamba Makeup - Discrepant Event Video". In the e-mail text body, first describe what is meant by the term "discrepant event". Then copy the url hyperlink (so I can watch the video) and write following descriptions: Equipment Used, What Was Done, What Happened, and an Explanation of Why it Happened.

9-10-12: We reviewed 25 questions that covered many of the course topics as a way of introducing the scope of what we will study this year. I collected the paper as an exit ticket. Absent students should get the paper from me in person review it as an required classroom assignment. Key term definitions for the 1st chapter of the textbook are due Friday (this will be checked but not collected; so, it should remain in your notebook until the Unit 1 exam.).

9-7-12: First day of class. I hope you felt welcome and enthused about the subject. Students received a hard copy print of the syllabus to keep in their notebook and selected seats. Note: This document is available in digital format as item #1 on the tab titled "Documents and Extra Credits" on the left. Your homework tonight was to visit this website to read the update I entered after class. YOU MADE IT HERE - CONGRATULATIONS!! To prove to me you were here and to get extra credit (EC) for the homework put the syllabus in a three-ring binder and draw a circle around the website address and a star next to it. When you take your seat 9/10, have your notebook open and show me the marked up syllabus as I walk around the room. Do that and you have an easy 5 points added to any other assignment as EC.