Directed Reading-Light and Color P.652-656

Name______Class______Date______

Skills Worksheet

Directed Reading-Light and Color p.652-656

Section: Light and Color

Light and Matter

Circle the letter of the best answer for each question.

1.What is the passing of light through matter?

a. absorption

b. radiation

c. reflection

d. transmission

2.Why can you see objects outside through the glass in a window?

a. Light is absorbed by the glass.

b. Light is refracted by the glass.

c. Light is reflected off the glass.

d. Light is transmitted through the glass.

3.Why can you see your reflection in a window?

a. Light is absorbed by the glass.

b. Light is refracted by the glass.

c. Light is reflected off the glass.

d. Light is transmitted through glass.

4.Why does the glass in a window feel warm when you touch it?

a. Some light is absorbed by the glass.

b. Some light is refracted by the glass.

c. Some light is reflected off the glass.

d. Some light is transmitted through glass.

Directed Reading B continued

Read the words in the box. Read the sentences. Fill in each blank with the word or phrase that best completes the sentence.

transparent / translucent
opaque

5. Matter that you can’t see through, like aluminum foil, is ______.

6. Matter that transmits and scatters light, like wax paper, is ______.

7. Matter that light passes through easily, like plastic wrap, is ______.

Colors of Objects

Circle the letter of the best answer for each question.

8.How do humans see different wavelengths of light?

a. as different colors c.as infrared rays

b. as ultraviolet light d.as matter

9.What determines the color that an object looks to your eyes?

a. the color of the light

b. the distance of the object from you

c. the wavelengths of light that reach your eyes

d. the amount of light around you

Colors of Opaque Objects

10.What happens to the colors of light when white light hits an object?

a. Colors of light are absorbed and reflected.

b. Colors of light are refracted and transmitted.

c. Colors of light are refracted and reflected.

d. Colors of light are absorbed and disappear.

Directed Reading B continued

Circle the letter of the best answer for each question.

11.The color of an opaque object is based on what?

a. the colors of light that are reflected

b. the colors of light that diffracted

c. the colors of light that are transmitted

d. the colors of light that are refracted

12.How many of the colors of light are reflected by a white object?

a. none

b. a few

c. half

d. all

13.How many of the colors of light are absorbed by a black object?

a. none

b. a few

c. half

d. all

Colors of Transparent and Translucent Objects

14.Why is ordinary window glass colorless in white light?

a. The window glass absorbs all the colors of light.

b. The window glass refracts all the colors of light.

c. The window glass reflects all the colors of light.

d. The window glass transmits all the colors of light.

15.What color of light do you see when you look through colored transparent or translucent objects?

a. the color absorbed through the material

b. the color refracted through the material

c. the color reflected through the material

d. the color transmitted through the material

Directed Reading B continued

Circle the letter of the best answer for each question.

16.What happens to the colors that are NOT transmitted through transparent or translucent objects?

a. The colors are absorbed.

b. The colors are refracted.

c. The colors are reflected.

d. The colors are transmitted.

Mixing colors of Light

17.What color of light do you get by combining red, green, and blue light?

a. white

b. ultraviolet

c. infrared

d. black

18.What are the primary colors of light?

a. cyan, magenta, and yellow

b. white and black

c. red, green, and blue

d. blue, yellow, and red

Color Addition

19.What is mixing red, green, and blue light an example of?

a. color matching

b. color addition

c. color subtraction

d. color deficiency

Directed Reading B continued

Circle the letter of the best answer for each question.

20.What color of light results if you add two primary colors of light?

a. a secondary color of light

b. the other primary color of light

c. white light

d. black light

Read the description. Then, draw a line from the dot next to each description to the matching word.

21.secondary color of light combining blue light and green light
22.secondary color of light combining blue light and red light
23.secondary color of light combining red light and green light / •
•
• / a.magenta
b.cyan
c.yellow

Light and Color Television

Circle the letter of the best answer for the question.

24.How are the colors on a color television produced?

a. by adding the secondary colors of light

b. by adding the primary colors of light

c. by subtracting the secondary colors of light

d. by subtracting the primary colors of light

Directed Reading B continued

Circle the letter of the best answer for each question.

25.Of what is a television screen made up?

a. red, green, and blue rays

b. tiny cyan, yellow, and magenta dots

c. tiny red, green, and blue dots

d. large red, green, and blue dots

Mixing Colors of Pigment

26.Why is there a difference between mixing paint and mixing light?

a. Light is a different color.

b. Paint is thick.

c. Paint contains pigments.

d. Light cannot be seen.

Pigments and Color

27.What are materials that give a substance its color?

a. paints

b. pigments

c. primary colors

d. secondary colors

28.What contains pigments?

a. very few things

b. only opaque objects

c. only translucent objects

d. almost everything

Directed Reading B continued

Color Subtraction

Circle the letterof the best answer for each question.

29.At least how many colors of light does each pigment absorb?

a. one c. three

b. two d. none

30.What is mixing pigments called?

a. color matching

b. color addition

c. color subtraction

d. color deficiency

31.What are the primary pigments?

a. cyan, magenta, and yellow

b. white and black

c. red, green, and blue

d. blue, yellow, and red

32.What is the result of the subtraction of two primary pigments?

a. a secondary pigment

b. the other primary pigment

c. white pigment

d. black pigment

33.What are the secondary pigments?

a. cyan, magenta, and yellowc.red, green, and blue

b. white and black d.blue, yellow, and red

34.What is mixing cyan, yellow, and magenta inks an example of?

a. color matching

b. color addition

c. color subtraction

d. color deficiency

Skills Worksheet

Section Review p. 656

Light and Color

Using Key Terms

1.Use the following terms in the same sentence: transmission and transparent.

______

2.In your own words, write a definition for each of the following terms: translucent and opaque.

______

Understanding Key Ideas

_____3.You can see through a car window because the window is

a.opaque. c. transparent.

b.translucent. d. transmitted.

4.Name and describe three different ways light interacts with matter.

______

5.How is the color of an opaque object determined?

______

6.Describe how the color of a transparent object is determined.

______

7.What are the primary colors of light, and why are they called primary colors?

______

8.What four colors of ink were used to print this book?

______

Section Review continued

Critical Thinking

9.Applying Concepts What happens to the different colors of light when white light shines on an opaque violet object?

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10.Analyzing Ideas Explain why mixing colors of light is called color addition but mixing pigments is called color subtraction.

______

Interpreting Graphics

11.Look at the rose image in the section “Light and Color” in your textbook. The rose was photographed in red light. Explain why the leaves appear black and the petals appear red.

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Holt Science and Technology1The Nature of Light