Electromagnetic Spectrum continued…

  1.  Reminder: Flex Day on Thurs. Jan 17 and Goal Day on Wed. Jan 23.  Sign up is posted on the whiteboard.
  2. Go over section 4.2 worksheets.
  3. Read section 4.3 and answer the questions for section 4.3 on the worksheets.
  4. HW: work on science fair projects – you should be starting to write up the sections of your project:  question, hypothesis, independent variable, dependent variable, materials, procedure
  5. Videos:



  1.  Hand in Lab 4B (staple the assessment rubric to the front)
  2. Warm up!  Question #52 on p.95
  3. I will be able to calculate the molarity of a solution (homogeneous mixture) – the 4th spoke of the mole wheel!
  4. Read section V.6
  5. Do:  #63-69 (odd numbers).  Check your answers.
  6. Reminder:  Flex Day on Thurs. Jan 17 – sign up is posted on the white board
  7. Reminder: Goal Day on Wed Jan 23 – Moles Retest will be scheduled that day (you need to do your corrections and extra practice/come for tutoring before you can write the retest).  You can also come to review for Unit V.
  8. Heads up:  Unit V Test will be on Thurs. Jan 24.
  9. Some good videos:



Electromagnetic Radiation

  1.  Video:

2.  Demo:  UV Light reveals secret messages; with Tonic water (quinone); can make UV beads change color; can be used to detect counterfeit money

3.  I will be able to describe and give examples of the electromagnetic spectrum and the different types of radiation.

4.  Read section 4.3 and do the worksheet pages for section 4.3.

5.  HW:  Work on your science fair projects!  Flex Day is on Jan.17 and you can choose to work with your partner during that time next week.  Goal Day is on Jan 23 and that is also an excellent opportunity to work on your science fair projects.

Lab 20D Salt Hydrolysis

  1.  Quick review of salt hydrolysis
  2. Prelab check!  Get your turtle stamp!
  3. Do:  Lab 20D – confirm whether your predictions were correct or not.  Be able to write hydrolysis equations, determine whether the solution will be acidic, basic, or neutral, and compare Ka and Kb values.

Light and Color

1.  Go over worksheets for section 4.1.

2. Hand in CYU questions for section 4.1

3.  I will be able to explain how we see color and the components of white light.

Activity:  Colors of Light (using a ray box and prism, draw the colors of light that form)

pHet simulation:  https://phet.colorado.edu/sims/html/color-vision/latest/color-vision_en.html

4. Read section 5.2 and do the worksheets for section 4.2

5. How is your science fair project coming along?  Do you have any questions you want to ask me about?

Finish Lab 4B

  1.  Welcome back!
  2. Warm up/Review of mole calculations
  3. Finish Lab 4B:  a) weigh your results, b) do Questions and Calculations #1-4 (p.57 in the lab manual), c) Possible Sources of Error, and d) Conclusion
  4. Interesting Q:  How much money would the copper your class made be worth today?  (block 1 – the copper that the whole class made is worth about 6 cents!)