Chapter 3 begins with a historical study of how early chemists used experimentation and reasoning to assemble models of the atom.  The Lesson 11 PowerPoint provides key vocabulary around the components of the atom (proton, electron, neutron, and nucleus). To help bring these concepts to life, we watched the Crash Course video below:

After the video, students worked with a partner through the Lesson 11 Worksheet, using a handout explaining the five models of the atom.  Notes from class are shown below:

Extend Your Learning!

Click on the CompoundChem.com infographic below to enlarge the graphic.  There is an excellent article accompanying the infographic as well that is highly encouraged reading.

Wonder what an atom actually looks like?  Using a “quantum-style” microscope, atoms of hydrogen can be seen – check out the article “Smile Hydrogen, You’re on Quantum Camera” from New Scientist magazine (2013).

Homework for this evening:

• Read Lesson 11 in the textbook.  Login via hs.saplinglearning.com and enter your username and password:
  • Username: wahps****s-####### (**** = first 4 letters of your last name and ####### = student number).  Remember to include the dash between s and #.
  • Password: S-####### (the S must be capitalized)
• Work through the homework problems at the end of Lesson 11 and then verify accuracy with the Lesson 11 Homework Answers.
• Write notes for Lesson 11 on the Chapter 03 Notes handout.
• Come to class tomorrow prepared to ask questions about anything of the homework problems from lesson 11 you did not understand.

Class began with a video about Dmitri Mendeleev and the Periodic Table.  During the video, students received their graded Chapter 1 Tests.  Students were encouraged to review the answer key as needed.  Students who struggled on the density questions (#13-15) on the test may obtain full credit for those three problems upon successful completion of the Density Laboratory Gizmo packet.  The complete packet must be returned along with the test for credit.

Next, students went back to work in small groups, tackling the Lesson 10 worksheet with their groups from Lesson 9.  They reconstructed their periodic tables using the cards from Lesson 9, then identified trends in the table to fill in the worksheet.  After completing the worksheet, students received a paper copy of the Periodic Table to use on exams and quizzes and then had the remainder of the class period to read and take notes on lesson 10 using the textbook as well as the Power Point slides.

Bonus Learning Opportunity

For pleasure, students should consider reading a few pages from Sam Kean’s book titled The Disappearing Spoon.  Click this link for the section of the book about Ytterby Lanthanides.  It begins with the sentence “In 1701, a braggadocian teenager…” and you will need to click the hyperlinked blue “Page >>” in the upper left hand corner to reveal the full reading passage.  Continue reading through the next three full pages ending in “…Galapagos Island of the periodic table.”  You will be glad you did!

Homework for this evening:

• Read Lesson 10 in the textbook.  Login via hs.saplinglearning.com and enter your username and password:
  • Username: wahps****s-####### (**** = first 4 letters of your last name and ####### = student number).  Remember to include the dash between s and #.
  • Password: S-####### (the S must be capitalized)
• Work through the homework problems at the end of Lesson 10 and then verify accuracy with the Lesson 10 Homework Answers.
• Write notes for Lesson 10 on the Chapter 02 Notes handout.
• Answer the Lesson 10 questions in the Chapter 2 Study Guide.
• Come to class tomorrow prepared to ask questions about anything of the homework problems from lesson 10 you did not understand.

We began our exploration of the Periodic Table by constructing our own.  In Lesson 9, students walk the path of the famous Russian chemist Dmitri Mendeleev who assembled the first predictive periodic table using the chemical and physical properties of the 63 elements known back in the 1860s.  We began the lesson with a video showing the reactivity of alkali metals upon contact with water:

For our work today, we reviewed the Lesson 9 PowerPoint, then worked through the Lesson 9 Worksheet by organizing elements via a card sort activity.

Extend Your Learning!

• Ever wonder how the elements got their names?  Some are named after recognizable people or places, while others…learn more by reading The Strange Stories Behind Weird Element Names, then watch the PBS video How the Elements Got Their Names at the end of the article.
• To learn more about how each element is actually used in everyday life, check out the Interactive Periodic Table of the Elements.

Homework for this evening:

• Read Lesson 9 in the textbook.  Login via hs.saplinglearning.com and enter your username and password:
  • Username: wahps****s-####### (**** = first 4 letters of your last name and ####### = student number).  Remember to include the dash between s and #.
  • Password: S-####### (the S must be capitalized)
• Work through the homework problems at the end of Lesson 9 and then verify accuracy with the Lesson 09 Homework Answers.
• Write notes for Lesson 9 on the Chapter 02 Notes handout.
• Answer the Lesson 9 questions in the Chapter 2 Study Guide.
• Come to class tomorrow prepared to ask questions about anything of the homework problems from lesson 9 you did not understand.

Today students will receive login credentials for online access to our Living By Chemistry textbook.  Students will access the book through the Sapling Learning website.

In preparation for the Chapter 1 Test tomorrow, students will have the class period to complete and review their Chapter 01 Notes.  This handout may be used as notes on the test.  No other notes may be used.  Students may not share notes during the test. The notes must be turned in along with the test tomorrow. Students should also review Mini-Quiz 1 and ask clarifying questions as needed.

Whiteboard notes depicting the solution for Lesson 5 Worksheet question 13:

In addition, students should prepare for the test by working through the Chapter 1 Summary questions on page 21 of the textbook.  Chapter 01 Summary answers are provided for students to check their work after attempting the review exercises.

As a final reminder (as included in the Chapter 1 Study Guide provided to students last Friday), testable content from Chapter 1 may include:

• Syllabus
• Safety Contract
• Lesson 1-5 content and vocabulary (review end-of-lesson exercises!)
  • Explain where to locate and how to use lab safety equipment
  • Review lab equipment Google Slides
  • Review Penny Lab demonstration – did the penny turn to gold?
  • Explain how you know what is and is not matter
  • Explain how to measure mass and volume
  • Calculate density when given mass and volume
  • Calculate mass when given density and volume
  • Calculate volume when given density and mass
  • Explain how density can be used as evidence to support what a material is or is not
  • Understand the limitations of density
  • Use common metric system prefixes (milli-, centi-, and kilo-) and base units (m, L, g)

Following the mini-quiz, students should use any remaining class time to prepare for Lesson 5 on Monday and the Chapter 1 Test next Thursday.

Homework for this weekend:

• Read lesson 5 in the textbook.
• Write notes for lesson 5 on the Chapter 01 Notes handout.
• Come to class Monday prepared to ask questions about any homework problems from lesson 4 or anything you read in lesson 5.
• Begin working on the Chapter 1 Study Guide.

Extend Your Learning!

Use the library or the Internet to compare mass and weight.  Why is it harder to launch a rocket from Earth than from the Moon?  Write a paragraph explaining your research and be sure to cite your sources.  The videos below are provided to help you start your research.

Class will begin with students responding to the ChemCatalyst embedded in the Lesson 02 PowerPoint.  Next, students will observe a demonstration in which a copper penny first turns silver, then gold.  They will record observations in the Lesson 02 Student Worksheet.  A video of the demonstration is available below:

After completing the lesson, students should be able to explain what chemistry is, to explain the difference between a physical and chemical change, and to explain how scientists use testable hypotheses to construct experiments.

Homework for this evening:

• Work through the homework problems at the end of Lesson 2 and then verify accuracy with the Lesson 02 Homework Answers.
• Read Lesson 3 in the textbook.
• Write notes for Lesson 3 on the Chapter 01 Notes handout.
• Come to class tomorrow prepared to ask questions about anything you read in lesson 3, or homework problems from lesson 2 you did not understand.
• Return signed copy of syllabus (due no later than Friday).
• Return signed copy of student safety contract (due no later than Friday).

Extension Activities:

• Research the chemical composition of United States coins, including the nickel, dime, and quarter.  Given what you learned in the penny lab today, is it possible to turn any of those coins into a different color?
• Research metal alloys.  Today we learned that copper and zinc can combine to make brass.  What other metal combinations produce useful alloys?
• Use the library or the Internet to research the development of alchemy in one of these regions: China, India, the Middle East, Greece, Spain, England, or Egypt.  Write a two-paragraph essay on the history of alchemy for your chosen region.  Be sure to list your sources.

• Use the library or Internet to research common uses for sodium hydroxide, which is also called lye.