June 9 and 10 Visible Light and Color

Observe,

Question,

Comment

Do Now: 06/9/11

“Along came a spider…”

Objective: Students will:

06/9/11

• explain how white light interacts differently with a white spider than with a black spider

• analyze why a rubber ducky changes color in different colored light

Vocabulary Bingo

15L

15 R

6/9/11--Do Now: “Along came a spider”

Explain how white light interacts differently with each of the 3 different colored spiders in the pictures below. Use your notes on page 14R to write a 4-5 sentence paragraph. In the paragraph, answer the following questions:

1. What color of light strikes the spiders’ bodies?

2. What color of light do the spiders’ bodies REFLECT?

3. What color of light do the spiders’ bodies ABSORB?

4. What determines the color of an opaque object?

15L

You Do #3: What color light is REFLECTED by… a. red apple

Absorbs other 6 colors

LIGHT SOURCE b. white spider

No colors are absorbed!!

a. black spider

EYE with rods and cones

All colors are absorbed!!!

14L

Do Now: “Along came a spider” (Answers)

1. What color of light strikes the spiders’ bodies?

White light from the sun strikes the bodies of all three spiders.

2. What color of light do the spiders’ bodies reflect?

The yellow spider’s body reflects yellow light. The white spider’s body reflects all the light. The black spider’s body doesn’t reflect any light.

3. What color of light do the spiders’ bodies absorb?

The yellow spider’s body absorbs red, orange, green, blue, indigo, and violet. The white spider’s body doesn’t absorb any light. The black spider’s body absorbs all 7 colors.

4. What determines the color of an opaque object?

The color of the object is also determined by the color of the light shining on it.

15L

6/9/11--Today’s Agenda

1. Do Now: Along came a spider… (10 min)

2. Vocabulary Bingo OR Finish Flash Cards (20 min)

3. Brain-pop: KWL (10 min)

4. Workbook Practice (25 min)

5. Lab: Changing Colors (30 min)

6. Quiz #3: Visible Light and Color (25 min)

If you do not pass the QUIZ, you should stay for after school tutoring!!!

Observe,

Question,

Comment

Do Now: 06/9/11


Objective: Students will: 06/9/11




15L

15 R

Directions:

Vocabulary Bingo: Visible Light and Color

1. Copy the bingo grid below into your notebook on page 15R

2. Fill in each of the 9 boxes with a different vocabulary word: Energy,

Wavelength, Opaque, Transmit, Wave, Frequency, Transparent, Reflect,

Amplitude, Visible Light, Translucent, Absorb, Electromagnetic Spectrum

3. I will show you a definition for one of the words, you must find the box on your grid with the same word.

4. Then write a sentence with that word in it. It must be a specific sentence.

5. The first person to get all their squares filled in with a sentence will be the winner!!!

Amplitude

A wave with a big amplitude has a lot of energy.

Transparent Transmit

Wavelength Opaque Energy

Absorb Visible Light Wave

15 R


1. What do you call the height of the wave?

2. What is the number of complete waves that pass a given point in a certain amount of time?

3. What is the complete range of electromagnetic waves placed in order of increasing frequency?

4. What kind of object transmits most light?

5. What kind of object scatters light as it passes through?

6. What kind of object reflects and absorbs light?

7. What does a black spider do to all the colors of visible light?

8. What does plastic wrap do to light?

9. What does a red apple do to red light?

10.What is the part of the electromagnetic spectrum that we can see?

11. What do you call the ability to do work?

12. What do you call a vibrating motion that passes energy?


1. What do you call the height of the wave? AMPLITUDE

2. What is the number of complete waves that pass a given point in a certain amount of time? FREQUENCY

3. What is the complete range of electromagnetic waves placed in order of increasing frequency?

ELECTROMAGNETIC SPECTRUM

4. What kind of object transmits most light? TRANSPARENT

5. What kind of object scatters light? TRANSLUCENT

6. What kind of object reflects/absorbs light?

OPAQUE

7. What does a black spider do to all the colors of visible light? ABSORB

8. What does plastic wrap do to light? TRANSMIT

9. What does a red apple do to red light?

REFLECT

10. What is the part of the electromagnetic spectrum that we can see? VISIBLE LIGHT

11. What do you call the ability to do work? ENERGY

11. What do you call a vibrating motion that passes energy? WAVE









Workbook Practice: Visible Light and Color

If you DO HAVE your workbook:

1.Open textbook to page 47

2.Open workbook to page 39

3.Use the textbook to complete

#1-7 on pages 39-40

If you DO NOT have your workbook:

1. Open textbook to page 47

2. You will BORROW a packet from me to complete questions #1-7 on pages 39-

40 from the workbook

3. You will write BOTH the question and the answer into your notebook page 15L

(contd)

Workbook Practice: Visible Light and Color

1. What 3 things can happen when light strikes an object?

TRANSMIT, REFLECT, ABSORB

2. In which 3 categories can most materials be classified, based on what happens to the light that strikes the material? TRANSPARENT,

TRANSLUCENT, OPAQUE

3. What happens to light that strikes a translucent material? SCATTERED

4. The color of an opaque object is the color of the light it REFLECTS.

5. Explain why you see the skin of an apple as red. THE RED APPLE IS AN

OPAQUE OBJECT. WHEN WHITE LIGHT STRIKES IT, THE RED APPLE

REFLECTS ONLY THE RED LIGHT WAVE. IT ABSORBS THE OTHER 6

COLORS OF LIGHT: ORANGE, YELLOW, GREEN, BLUE, INDIGO, VIOLET.

6. TRUE OR FALSE? Objects can look different in color depending on the color of the light in which they are seen. TRUE

7. What color does a green leaf appear to be in red light? BLACK Why?

SINCE THERE IS NO GREEN LIGHT FOR IT TO REFLECT, THE LEAF

APPEARS BLACK BECAUSE IT ABSORBS ALL THE OTHER COLORS.









Observe,

Question,

Comment

Skills Lab: 06/9/11

Changing Colors

(page 51 in the textbook)

Lab Summary:

06/9/11

16L

16 R

Skills Lab: Changing Colors (page 51 in text)

Problem: (Please copy it from thetop of page 51)

Materials: shoe box, flashlight, tape, red, plastic wrap, red star, blue star, yellow duckie

Procedure: (Please list #3-5 only!!! )

Analyze and Conclude: (Please copy each question #1, 3, 4, and 5.

Use the last paragraph on page 48 and your observations to help you answer them!!!! )

1. What did you see when you looked through the red cellophane?

Explain why each object appeared as it did.

3. What colors of light does each piece of cellophane allow through?

4. Predict what you would see under the red cellophane if you put a white object in the box? Test your prediction.

5. What do you think would happen if you viewed a red object through yellow cellophane?

16L

Skills Lab: Changing Colors (page 51)

Problem: (Please copy it from top of page 51)

Materials: shoe box, flashlight, tape, blue/red/yellow plastic wrap, blue/red/yellow object

Procedure: (Please list #3-6)

Analyze and Conclude:

Answers!!!!

1. The red star looked red because it reflected the red light that was allowed through by the red cellophane. The blue star and yellow rubber ducky both looked black because the red cellophane did not allow any blue or yellow light in. They did not have any light to reflect. They absorbed all the light and appeared black.

2. The blue star looked blue because it reflected the blue light that was allowed through by the blue cellophane. The red star and yellow rubber ducky both looked black because the blue cellophane did not allow any red or yellow light in. They did not have any light to reflect, absorbed all the light, and appeared black

Skills Lab: Changing Colors (page 51)

Problem: (Please copy it from top of page 51)

Materials: shoe box, flashlight, tape, blue/red/yellow plastic wrap, blue/red/yellow object

Procedure: (Please list #3-6)

Analyze and Conclude:

Answers!!!! (contd)

3. The red cellophane allowed red light through. The blue cellophane allowed blue light through. The yellow cellophane allowed yellow light through.

4. A white object would look red under the red cellophane, blue under the blue cellophane, and yellow under the yellow cellophane. This is because white materials do not absorb any light and reflect all like that strikes them.

5. A red object under yellow cellophane would appear black because there would be no red light to reflect back.

Observe,

Question,

Comment

Skills Lab:

Changing Colors

06/9/11 Summary of Lab:

06/9/11

16L

16 R

Summary of Lab:

1. Red cellophane transmits (allows through) only red light  Red objects still reflect the red light and appear red, but non-red objects have no light to reflect and look black

2. Blue cellophane transmits only blue light 

Blue objects still look blue, but non-blue objects look black

3. Yellow cellophane transmits only yellow light 

Yellow objects still look yellow, but non-yellow objects look black

16 R









Standard: Total

Correct:

6e /15

Score:

Unit 10/Quiz #3:

Visible Light and Color

9.

10.

11.

12.

13.

14.

15.

4.

5.

6.

7.

8.

1.

2.

3.

First and Last Name

Date

Period

Unit 10/Quiz #3: Visible Light and Color

1. Plastic wrap is transparent. It will

__________ most of the light that strikes it.

a. Absorb b. Transmit c. Reflect

2. A ___________ object reflects and absorbs the light that strikes it. a. Opaque b. Transparent c. Translucent

3. What is an example of a primary light source in this classroom?


4. Which visible light wave has the highest energy? A. Red B. Yellow C. Blue

5. The 7 colors of visible light combine to create what color of light?

6. True or False? Visible light has lower energy than infrared light.


7. During the day, what color do the particles in the sky reflect?

8. Which colors does a black sweatshirt reflect? Which colors does it absorb?

9. To be able to see a red apple, what must happen first? a. The cones absorb the red light b. The light source sends out red light c. The apple reflects red light into the eye


10. True or False? The 7 th grade shirts absorb the same colors of light as the 6 th grade shirts.

11. When a yellow flower is seen with a red light, what color should it look?

12. What color of light does a blue filter allow through?

13. Why do white clothes keep you cool?


14. An actor’s yellow shirt and blue pants both appear black. What color is the stage light shining on the actor?

a. Red b. Blue c. Yellow

15. What determines the color of an object besides the color of the light shining on it?

a. Its temperature b. The material it is made out of c. Its age


1. Plastic wrap is transparent. It will

__________ most of the light that strikes it.

a. Absorb b. Transmit c. Reflect

2. A ___________ object reflects and absorbs the light that strikes it. a. Opaque b. Transparent c. Translucent

3. What is an example of a primary light source in this classroom? Lightbulb, cell phone, flashlight, projector, computer, etc


4. Which visible light wave has the highest energy? A. Red B. Yellow C. Blue

5. The 7 colors of visible light combine to create what color of light? WHITE

6. True or False? Visible light has lower energy than infrared light. FALSE


7. During the day, what color do the particles in the sky reflect? BLUE

8. Which colors does a black sweatshirt reflect?

What colors does it absorb? It reflects no colors and absorbs all colors.

9. To be able to see a red apple, what must happen first? a. The cones absorb the red light b. The light source sends out red light c. The apple reflects red light into the eye


10. True or False? The 7 th grade shirts absorb the same colors of light as the 6 th grade shirts. FALSE

11. When a green leaf is seen under only red light, what color will it look? BLACK

12. What color of light does blue plastic wrap allow to be transmitted? BLUE

13. Why do white clothes keep you cool?

White reflects all light and absorbs none.


14. An actor’s yellow shirt and blue pants both appear black. What color is the stage light shining on the actor?

a. Red b. Blue c. Yellow

15. What determines the color of an object besides the color of the light shining on it?

a. Its temperature b. The material it is made out of c. Its age

How many did they get CORRECT out of

15 total????

13, 14, 15

10, 11, 12

What is their GRADE in the Standards box????

5 

4 

7, 8, 9

4, 5, 6

3

2 

1, 2, 3 1 

If you got a 1 or 2, please come in to re-take the quiz after school on Thursday or Friday!!!









Observe,

Question,

Comment

Do Now: 06/9/11


Objective: Students will: 06/9/11




Brain pop: Colors

Know Want to know Learned

1.

1.

1.

2

3.

2.

3.

2.

3.

15L

15 R

2.

3.

Brain pop: Color

Please fill in your KWL before, during, and after the short video.

KNOW

(What did Tim talk about that you already knew?)

1.

WANT TO KNOW

(What do you still wonder about?)

1.

LEARNED

(What did you learn from Tim?)

1.

2.

3.

2.

3.

15L

June 9 and 10 Visible Light and Color

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