11 R 11L 06/6/11 Do Now: I can’t see in the dark! Observe, Question, Comment Standard 6e: Students know that white light is a mixture of many wavelengths… Objective: Students will: compare and contrast how light interacts with transparent, translucent, and opaque objects analyze why the sky is blue Vocabulary: 1.Light source 2.Transparent 3.Translucent 4.Opaque 5.Reflect 6.Scatter 7. Transmit 8. Absorb 06/6/11

6/6/11 D o Now: I can’t see in the dark! Tell a story about a time that you had difficulty doing something because there was too little light to see. Write a paragraph of 4-5 sentences and include an illustration (picture). 1.Why is it difficult for your eyes to see in the dark? 2.What object were you trying to see? 3.What was your source of light? 11 L

11 R 11L 06/6/11 Do Now: I can’t see in the dark! Observe, Question, Comment Standard 6e: Students know that white light is a mixture of many wavelengths… Objective: Students will: compare and contrast how light interacts with transparent, translucent, and opaque objects analyze why the sky is blue Vocabulary: 1.Light source 2.Transparent 3.Translucent 4.Opaque 5.Reflect 6.Scatter 7. Transmit 8. Absorb 06/6/11 Homework: Please make 8 more flashcards and add them to the ones you made last week. I will give you the definitions for today’s words in class. As your EXIT PASS today, you will write the word and draw a picture. For your homework tonight, you will copy the definition and write your own sentence. Those who come with finished flashcards on Wednesday will get to play a game. Those who do not will have tutoring on Thursday or Friday.

EM Spectrum White Board Review— “Who am I?” (Please use your notes from last class to remind you about the EM spectrum. Use your whiteboard to show the name of the EM wave.) 1.“I am the most dangerous EM wave. You must protect yourself from me.” 2.“On a cloudy day I can burn your skin, but I help you make Vitamin D.” 3.“Couch potatoes use me to watch TV.”

4. “I can be used to take a picture inside your body.” 5. “You get warm when you receive my heat energy.” 6. “I am the radio wave you use to heat your food quickly or send a text to your bestie.” 7. “I am the only EM wave that your rods and cones can see.” 8. “What is our order from lowest to highest energy?”

12 R 12L 06/6/11 Agree or Disagree??? Observe, Question, Comment 06/6/11 STATEMENTEXAMPLE

11L Statement Agree or Disagree? (Before) Agree or Disagree? (After) How do you know? Give an example… (After notes) Do you Agree or Disagree??? Light and Color p Directions: Copy the table below. Before we take notes, decide if you agree or disagree with each statement. After the notes, go back and do it again. Use your notes to explain how you know it is true or not. 12L

Statement Agree or Disagree? (Before) Agree or Disagree? (After) How do you know? Give an example? (After notes) 1. For you to see an object, light from the object has to reach your eye. 2. When light strikes an object, the light can be reflected, transmitted, or absorbed. 3. A transparent material transmits most of the light that strikes it. 4. A translucent material scatters light as it passes through it. 5. An opaque material reflects or absorbs all of the light that strikes it. 12L

12 R 12L 06/6/11 Agree or Disagree??? Observe, Question, Comment 06/6/11 Notes: Visible Light—What is needed for you to see? p. 47 STATEMENTEXAMPLE

6/ 6/11 Notes: Visible Light (page 47) What is needed for you to see? 1.LIGHT source gives off light waves. 2. Light waves strike an object. 3. Light waves are reflected off the object and into the eye. 12R

Notes: Visible Light and the color of objects (page )-- What is needed for you to see? 1.LIGHT source = where light waves come from.  Primary source: makes its own light  Example: sun  Secondary source: reflects light off of a primary source  Example: mirror and flashlight

2.Light waves strike an object.  Transparent Object (Example: Plastic Wrap)  Transmits all the light  allows light to pass through  Result: Object looks invisible and can see through it  Translucent Object (Example: Wax Paper)  Some light is transmitted (passes through)  Most light is scattered (reflected and spread out)  Result: Object not invisible; can see some light on the other side of it  Opaque Object (Example: Foil)  Reflects  some light bounces off and back out  Absorbs  some light stays inside the object  Result: Object is visible and cannot see through it

3. Light waves are reflected off the object and into the eye. Please go back to the AGREE/DISAGREE statements on page 12L and fill in the green and blue columns!!! Use your notes to help you.

12 R 12L 06/6/11 Agree or Disagree??? Observe, Question, Comment 06/6/11 Notes: Visible Light—What is needed for you to see? p. 47 STATEMENTEXAMPLE

Statement Agree or Disagree? (Before) Agree or Disagree? (After) How do you know? What is an example? (After notes) 1. For you to see an object, light from the object has to reach your eye. 2. When light strikes an object, the light can be reflected, transmitted, or absorbed. 3. A transparent material transmits most of the light that strikes it. 4. A translucent material scatters light as it passes through it. 5. An opaque material reflects or absorbs all of the light that strikes it. 12L

13 R 13L 06/6/11 Observe, Question, Comment 06/6/11 Mini lab #1: Transparent, Translucent, or Opaque??? Conclusion:

Material (Tape it in) What happens when you shine light through it? Transparent, Translucent, or Opaque? Plastic Wrap Transparent Wax Paper Translucent Foil Opaque Mini lab #1: Transparent, Translucent, or Opaque??? 13L Conclusion: The difference between transparent, translucent, and opaque objects is the amount of ______ that is ___________ ______________. I know this because______________________.

Mini lab #1: Transparent, Translucent, or Opaque? 1.You will get WAX PAPER, PLASTIC WRAP, FOIL and a flashlight. 2.Hold the plastic wrap so that light shines through it. 3.In the MIDDLE column, describe how the light interacts with the plastic wrap. What happens to the light? (Is it TRANSMITTED, SCATTERED, REFLECTED, or ABSORBED???) 4.Decide whether the material is TRANSPARENT, TRANSLUCENT, or OPAQUE. 5.Repeat the same for the wax paper and the foil. 6.Tape each into your notebook in the LEFT column. 13L

13 R 13L 06/6/11 Observe, Question, Comment 06/6/11 Mini lab #3: Why does the sky look blue? Question: Hypothesis: Procedure: Observations: Conclusion: Mini lab #1: Transparent, Translucent, or Opaque??? Conclusion: The difference between transparent, translucent, and opaque objects is the amount of _______ that is _________________ I know this because____________________.

Mini lab #3: Why does the sky look blue? Question: Why does the sky look blue even though sunlight looks white? Hypothesis: When I shine white light into milky water, I think it will look _________ because _________________________________. Procedure: 1.Shine light through the cup of clear water it the white paper behind the cup. 2. Record your observations. 2. Shine the light through the milky water with the white paper behind. 3. Record your observations. 4. Make conclusions. Observations: Conclusion: 13 R

Mini lab #3: Why does the sky look blue? Question: Why does the sky look blue even though sunlight looks white? Hypothesis: Procedure: Observations: Conclusion: Based on my observations, I learned that when white light shines into milky water, the milky water appears blue because ___________________ _______________________________________________________________. An example of this in real life is when the sky appears blue because ________ _______________________________________________________________. 13 R Description: What color is the liquid in the cup? What color is the white paper? Drawing Clear Water (Transparent) Milky Water (Translucent)

Exit Pass/ Homework: Please make 8 more flashcards. Add them to those from last week. Today you got the definitions in your notes and mini-labs. As your EXIT PASS, complete the FRONT of the card. As HW tonight, complete the BACK of the card. Those who come with finished flashcards on Wednesday will get to play a game. Those who don’t, will stay for tutoring on Thurs or Fri. Vocab Words: 1. Light source 2. Transparent 3. Translucent 4. Opaque 5. Reflect 6. Scatter 7. Transmit 8. Absorb (Front of card) Word Picture (Back of card) Definition Own sentence

Mini lab #2: Bending Straws Question: What happens to ______ when it ______ through _____? Hypothesis: When I look at the straw through the side of the transparent cup, I think it will look _________________________________________________ because _______________________________________________________. Procedure: 1. Fill cup with water. 2. Put straw in cup. 3. Look at the straw in the cup from the side. 4. Record my observations in 3 sentences and a drawing. 5. Make my conclusions. Observations: Conclusion: Based on my observation that ____________________________, I can conclude that my hypothesis was ____________ (correct/incorrect.) This occurred because ____________________________________________. An example of this in real life is when _______________________________. 13 L (top) DescriptionDrawing

11 R 11L 06/6/11 Do Now: I can’t see in the dark! Observe, Question, Comment Standard 6e: Students know that white light is a mixture of many wavelengths… Objective: Students will: compare and contrast how light interacts with transparent, translucent, and opaque objects analyze why the sky is blue Vocabulary: 1.Light source 2.Transparent 3.Translucent 4.Opaque 5.Reflect 6.Scatter 7. Transmit 8. Absorb 06/6/11 KW: Light and Color

Standard 6e: “White light is a mixture of many wavelengths (colors).” Directions: This is our standard for this week. Please fill out the KW chart with as many facts and questions as you can.  What do you already know about LIGHT and COLORS?  What do you want to know? KNOW?WANT to learn? L