Monthly Archives: September 2015

Separating Mixtures

  1.  Want to win $5000US and an all-expense paid trip to Orlando?  Enter the Dupont Challenge contest.  See the website here:
  2. Hand in the Aluminum Foil lab
  3. Discuss the Physical and Chemical Changes activity you did last class.
  4. Set up the Chromatography lab.  See instructions here: Chromatography Lab
  5. Do:  Prelab 2C – read the lab instructions and answer the questions.  See handout here:  Lab 2C Elements, Compounds, and Mixtures
  6. Do:  ch1 Review Worksheet – mc section for Friday,  problems section  for Tues.  See handout here: ch1 worksheet
  7. Ch1 Test on thurs. Oct 8

Energy in Reactions

  1. Contest:  The Dupont Science Challenge (an essay contest)  1st prize is $5000 US savings bond and an all-expense paid trip to Orlando!  See details here:
  2.  I will be able to use collision theory to explain why reactions get faster or slower.  See video:

2.  I will be able to explain energy changes in an exothermic and endothermic reaction.  See class notes here:  How Does the Energy of the Reaction Affect the Reaction Rate

  • Read and highlight sections 1.1-1.6
  • Do a few questions from each section

3.  Go over the Review of Chemistry 11 test.  Do corrections for the written section.  For the multiple choice section, analyze what went wrong and explain why the correct answer should be the way it is.  If you scored poorly, you can write a retest on Monday.  You must have your corrections done by then!

Designing a Controlled Experiment Day 2

  1.  Don’t forget to bring me $10 or print your receipt if you are purchasing a workbook.
  2. Hand in your Journals
  3. Go over lab safety tests
  4. Read p.476-479 and discuss “Qualitative” and “Quantitative” observations and how the “manipulated variable” is the same as the independent variable and how the “responding variable” is the same as the dependent variable.
  5. Homework:  Simpsons Scientific Method Worksheet.  Here is a copy of it: Simpsons Scientific Method


  1.  Quiz on Unit Conversions.  See me if you have any questions or need extra practice.
  2. I will be able to identify physical and chemical changes.  We did an activity to test for physical and chemical changes (mixing solutions A-D)

3.  I will be able to identify elements, compounds, and mixtures.  We drew the “Tree of Chemistry” to organize key terms.  Tree of Chemistry – Blk 3

4.  Prep the chromatography lab for Wed.

5.  Finish the Al Foil lab and hand in by next class.

6.  Make organized notes for ch1 (i.e. Column notes, mind map, bulleted notes, Cornell notes, Venn diagrams, etc…)

7. Ch1 Test next week.


Rates of Reaction

  1.  Lab Safety – have you handed in everything yet?
  2. I will be able to calculate the rate of reaction.  See Block 1 notes here:  Measuring Rate
  3. I will be able to manipulate the rate of reaction.
  • We did the Mg in HCl activity and students shared their results.
  • We learned about Collision Theory and how the 5 factors affect the rates of reaction.  See block 1 notes here:  Collision Theory
  • Begin Project:  give 10 (different) real-life examples which show how the 5 factors increase the rate of reaction and 5 factors decrease the rate of reaction.  See the project outline here: Reaction Rates Mini Project

Designing Experiments

  1.  If you want to purchase a workbook, bring $10 asap!  I have reserved a copy for those of you who forgot to show me your receipt or who will pay next week.
  2. We went over “Cleaning Up Soiled Sites” article and questions.  See class answers here:  Cleaning Up Soiled Sites
  3. I will be able to design an experiment.   Using the demonstration of the “hoopster” airplane, we made observations, asked questions, and brainstormed changes we could make to the activity.  Each group chose which change they would make and designed hoopsters for that change.  For example, if your group chose to change the number of hoops on the hoopster, you could design one with 2 hoops, one with 3 hoops, and one with 4 hoops.  We will test the flight time next class.
  4. HW:  Journal Entry.  See attached questions:  Science Journal

Sig Figs – Day 2

  1.  Do you want to be a TNT tutor for chemistry and/or physics?  See me or Ms. Bernabei for a form.  Their first meeting will be on Wed. Sept 30, lunch, in Rm111.
  2. Sig Figs Quiz
  3. Examine data from last class (finding the density of water).  Remember: 1) measure to 1/10 of the last division;  2) use the best equipment for the measurement (ie. beaker vs. grad cylinder); and 3) follow sig fig rules in your calculations
  4. Activity:  Finding the Thickness of a Sheet of Aluminum Foil.  See the outline here:  What is the Thickness of a Sheet of Aluminum Foil
  5. Next class:  quiz on unit conversions.  Yes, you need to memorize the prefixes!!

Lab Safety and Intro to Kinetics

  1.  Did you hand in the yellow Lab Safety worksheet?
  2. I will be able to follow lab safety rules. We watched a video on lab safety:

3.  I will be able to locate lab safety equipment in the classroom.  See the assignment here:  Safety Equipment in Rm113

4.  I will be able to identify common lab equipment at my lab station.  See the list here:  Lab Equipment Checklist for Rm 113

5.  Demo:  Magnesium in HCl.  See the video link here:

We made observation.  We asked questions.  We suggested what we could change about the demonstration.

6.  Choose one of the changes your class suggested.  In groups of 3-4, plan out how your group will carry out the experiment.  Block 1 list is here: Mg in HCl – block 1

Precision and Accuracy – Day 2

  1. Where else have we seen unit conversion?  How about in a song?  This is from the musical “Rent”  called “Seasons of Love”:

  1. We marked the worksheet “Significant Figures”.  See me during class or after school if you have questions or don’t understand why the answer was rounded that way.  See answers here and questions the class had:  Significant Figures Worksheet – Hebden Answers
  2. Finish the 2 POGILS and discuss.
  3. Activity:  Find the Density of Water
  4. We have covered CCS sections 1.4-1.6.  Good practice questions:  #19, 25, 35, 37, 39, 43, 45
  5. Quiz next class on Sig Figs