Chapter 28 Color
Pace:  6 class periods
Checkpoint: 23 March
ESSENTIAL QUESTION

  • Explain how light interacts with matter by reflection, absorption, or transmission.
STANDARDS COVERED

  • P4.9B Explain how various materials reflect, absorb, or transmit light in different ways. 
  • P4.9C Explain why the image of the Sun appears reddish at sunrise and sunset.
Kahoot and Differentiation
Pre and Post test data will be collected and used by the teacher to offer alternative projects to demonstrate mastery. You may also self select for an alternative assignment upon conferencing with your teacher.  Please talk to your teacher if you have any questions.  

Student Examples:
Paper Slides
Ch 28 Textbook and Notes
cpte28.pdf
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ch28.ppt
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File Type: ppt
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28.1: The Color Spectrum
17-18 March
pg 555-556

BOOK NOTES (10-15 min)
Review Chapter 28 section 1and complete Cornell Notes notes for this section including the "terms to know". Include diagrams and examples when possible. 

VIDEO NOTES (10-15 min)
Add to your Cornell Notes using Color: White Light, Reflection & Absorption video from Education Portal (expires 3 April). Add details and diagrams to your notes.

MASTERY CHECK (5 min)
Are black and white real colors? Explain in your notebook and INCLUDE a diagram.
Standard Practiced:
P4.9B

Big Idea:
1. By passing a narrow beam of sunlight through a triangular-shapped glass prism, Newton showed that sunlight is composed of a mixture of all the colors of the rainbow.  

Terms to know:
Spectrum
White Light

28.2: Color by Reflection
28.3: Color by Transmission
19 March
pg 556-558

BOOK NOTES (10-15 min)
Review Chapter 28 sections 2-3 and complete Cornell Notes notes for this section including the "terms to know". Include diagrams and examples when possible. 

WEB NOTES (10-15 min)
Review Transmission of Light from study.com and add to your Cornell Notes. Include diagrams and examples when possible. 

PRACTICE (15-25 min)
Using the COLOR PRACTICE WS below and the links included to review and complete on your own or with a partner. Check in when completed.
color.practice.doc
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File Type: doc
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MASTERY CHECK (10 min)
  1. (28.2) What happens to light of a certain frequency when it encounters atoms of the same resonant frequency? 
  2. (28.3) What is the function of pigment?

 
Standard Practiced:
P4.9B

Big Idea:
1. The color of an opaque object is the color of the light it reflects.
2. The color of a transparent object is the color of the light it transmits.

Terms to Know:
Opaque
Frequency
Amplitude
Oscillations
Absorption
Transparent
Pigment

28.4 Sunlight
28.9 Why Sunsets are Red
20 March
pgs. 559 & 568-569

BOOK NOTES (10-15 min)
1. Review Chapter 28 sections 4 and 9 and complete Cornell Notes notes for this section including the "terms to know". Include diagrams and examples when possible. 

VIDEO NOTES (10-15 min)
2. Add to your Cornell Notes using Why the Sun Changes Color from study.com 

Watch a Lab Demo here 

MASTERY CHECK (15-20 min)
Using the "SUNSETS" illustration to the right and what you have learned in this section, explain why the image of the Sun appears reddish at sunrise and sunset. Complete in your notebook with explanations and illustrations and check in when completed.
Standard Practiced:
P4.9B
P4.9C 

Big Idea: 
1. Yellow-Green light is the brightest part of sunlight
2. By the time a beam of light gets to the ground at sunset, all of the high-frequecy light has already been scattered. Only the low-frequecies remain, resulting in a red sunset.

Terms to Know:
White Light
Frequency
Visible Light

28.Lab
23 March


1. Color Vision PHET Lab
45 min
Using the PHET interactive simulation for molecules and light embedded in this section. 

Complete lab practice on your own or with a lab partner today in class. It may be completed on your own time if needed. Lab sheet is attached below and will be available in class:
28.lab.color.doc
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If the embedded lab above does not work open the file below to start lab.  
color-vision_en.jar
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File Type: jar
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Standard Practiced:
P4.9B
P4.9C 

Big Idea: 
1. Light color is determined by the frequency that makes it to our eyes.
2. Materials are opaque/transparent according to the natural frequencies of the medium.  

28.Review

28.Optional Extra Credit

Complete the practice on blue "ASSESS" pages 574-575 #1-8, and 20.
28.assessment.pdf
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File Type: pdf
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Ch 28 Post Test in class 24 March
Remediation, Late Work and Extra Credit due within 10 
days of test date or the end of the quarter (2 April)