Answer Key
Grade 5
Practice Test
•What is Light?
•How Light Behaves
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Grade 5: Answer Key
Practice Test
1. Part A
Based on the text and diagram, how many major
bands of radiant energy are there?
C
Incorrect. A spectrum is the range of radiant
energy or a series of energy bands.
D
Incorrect. Wavelength describes the distance
between peaks in waves of light.
A
Incorrect. Look at the “Kinds of Radiant
Energy” diagram.
B
Incorrect. Look at the “Kinds of Radiant
Energy” diagram.
C
Correct. The “Kinds of Radiant Energy”
diagram supports this answer.
A
D
Incorrect. Look at the “Kinds of Radiant
Energy” diagram.
Correct. Frequency describes how closely
together waves of light travel.
B
Incorrect. A photon is a tiny invisible particle
or packet of energy.
C
Incorrect. A spectrum is the range of radiant
energy or a series of energy bands.
D
Incorrect. Wavelength describes the distance
between peaks in waves of light.
3. Part A
Which word is used to describe how closely
together waves of light travel?
Part B
How many of these major bands of radiant energy
are invisible?
A
B
Incorrect. Look for a clue in the text.
Correct. The text explains that the bands on
both sides of visible light are invisible.
Part B
C Incorrect. Look for a clue in the text.
Which word is used to describe the distance
between peaks in waves of light?
D
A
Incorrect. Frequency describes how closely
together waves of light travel
Which word is used to describe a series of energy
bands?
B
Incorrect. A photon is a tiny invisible particle
or packet of energy.
A
Incorrect. Frequency describes how closely
together waves of light travel
C
Incorrect. A spectrum is the range of radiant
energy or a series of energy bands.
B
Incorrect. A photon is a tiny invisible particle
or packet of energy.
D
Correct. Wavelength describes the distance
between peaks in waves of light.
C
Correct. A spectrum is the range of radiant
energy or a series of energy bands.
Incorrect. Look for a clue in the text.
2. Part A
D
4. Which of the following statements about light
and sound are true? Choose all that apply.
Incorrect. Wavelength describes the distance
between peaks in waves of light.
Part B
Which word is used to describe a particle of light?
A
Incorrect. This does not describe a particle of
light.
B
Correct. A photon is a tiny invisible particle
or packet of energy.
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A
B
C
D
E
F
Incorrect. This statement is false.
Correct. This statement is true.
Correct. This statement is true.
Incorrect. This statement is false.
Correct. This statement is true.
Correct. This statement is true.
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Grade 5: Answer Key
Practice Test
5. According to the text, what does a light-year
measure?
A
Correct. Light-years measure distance and are
often expressed in miles or kilometers.
B
Incorrect. Time is measured in seconds,
minutes, and hours. Find what a light-year
measures in the text.
C
Incorrect. This word does not describe this
picture.
D
Correct. This word describes this picture.
7. Which is an example of reflection?
C Incorrect. Look back in the passage to find
what a light-year measures.
D Incorrect. Look back in the passage to find
what a light-year measures.
A
B
Correct. This is an example of reflection.
C
Incorrect. This is an example of a transparent
material. This is not an example of reflection.
D
Incorrect. This is an example of a transparent
material. This is not an example of reflection.
6. Part A
Which word best describes the picture of the
window shown above?
A
Incorrect. This word does not describe this
picture.
B
C
Correct. This word describes this picture.
Incorrect. This is an example of a transparent
material. This is not an example of reflection.
8. Part A
What is the main idea of paragraph 5?
Incorrect. This word does not describe this
picture.
D Incorrect. This word does not describe this
picture.
A
Correct. Most of the paragraph is about this
main idea.
B
Incorrect. This is a supporting detail, not the
main idea.
C
Incorrect. This is a supporting detail, not the
main idea.
D
Incorrect. This is a supporting detail, not the
main idea.
Part B
Which word best describes the picture of the
book shown above?
Part B
Which sentence from the paragraph best
supports the correct answer to Part A?
A
B
Correct. This word describes this picture.
Incorrect. This word does not describe this
picture.
A
Correct. This sentence states the main idea
of the paragraph.
C
Incorrect. This word does not describe this
picture.
B
Incorrect. This detail does not best support
the main idea of paragraph 5.
D
Incorrect. This word does not describe this
picture.
C
Incorrect. This detail does not best support
the main idea of paragraph 5.
D
Incorrect. This detail does not best support
the main idea of paragraph 5.
Part C
Which word best describes the picture of the vase
shown above?
A
Incorrect. This word does not describe this
picture.
B
Incorrect. This word does not describe this
picture.
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Grade 5: Answer Key
Practice Test
9. Write a paragraph that explains one way reflection and refraction are alike and one way they are different.
Scoring Rubric
2
The response strongly shows the ability to summarize and interpret information about reflection and
refraction in the text to show one way they are alike and one way they are different.
Exemplar:
Both refraction and reflection describe what happens when light hits an object. However, refraction describes
what happens to light when it passes from one transparent material to another. Reflection describes what
happens when light bounces off an object.
1
The response gives limited evidence of the ability to summarize and interpret information about reflection
and refraction in the text. The response may include only one way reflection and refraction are alike OR
one way they are different.
0
A response gets no credit if it is blank or provides no evidence of the ability to compare and contrast
reflection and refraction.
10. Part A
10. Part B
On the basis of the Lenses diagram, what causes
one lens to spread light out and another to focus
light?
A
B
C
Which paragraph in What is Light best describes
what happens in this diagram?
A
Incorrect. This paragraph is about radiant
energy.
Incorrect. This paragraph is about photons.
Incorrect. The diagram does not show this.
B
C
Correct. The diagram shows that the lenses
have different shapes.
D
Incorrect. This paragraph is about how light
can travel though the nothingness of space.
Incorrect. The diagram does not show the
speed of light.
D Incorrect. The diagram does not show this.
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Correct. This paragraph explains how light
moves.
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Grade 5: Answer Key
Practice Test
11. You have read two texts about light energy. Summarize the main ideas in each passage and explain
how the texts work together to give a more complete understanding of light energy. Be sure to include
examples from both texts to support your ideas.
Scoring Rubric
4
The response gives full evidence of the ability to summarize the two texts and explain how they
complement each other to give a more complete understanding of light energy. The response includes
the effective use of supporting evidence from both texts.
Responses will vary but should include at least three main ideas for each text, such as:
What is Light?
• Light can be described as tiny, weightless particles or as moving in waves.
• Light travels in a straight line.
• Light can bend.
• Different kinds of light have higher or lower levels of energy.
• Light travels very, very fast, much faster than sound.
How Light Behaves
• Light behaves differently when it strikes different materials and surfaces.
• Light can bounce off objects (reflection).
• Light can bend as it passes from one transparent object to another, like from air to water (refraction).
• Light cannot pass through opaque objects, which causes shadows.
How the texts work together: Both texts include information on how light moves. The first text describes light
as particles and waves, but that’s not how people normally see light. The second text gives real-world examples
that explain why we see what we see around us, which makes it easier to understand what light really is.
3
The response gives sufficient evidence of the ability to summarize the two texts and explain how they
complement each other to give a more complete understanding of light energy.
The response provides uneven use of supporting evidence, and flaws are present.
2
The response gives partial evidence of the ability to summarize the two texts and explain how they
complement each other to give a more complete understanding of light energy. Some of the main
ideas in one or both text may be incomplete or missing.
The response provides uneven use of supporting evidence, and flaws are present.
1
The response is related to the topic (to summarize the two texts and explain how they complement
each other) but provides little or no focus with minimal use of supporting evidence.
0
A response gets no credit if it is vague and/or includes no relevant information from the text to show
that the student understands the main ideas in the texts.
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Grade 5: Answer Key
1.Part A
A B
Part B
A B
2.Part A
A B
Part B
A B
3.Part A
A B
Part B
A B
4.A B
5.A
Practice Test
6.Part A
C D
C D
C D
C D
C D
C D
C D E F
B C D
A B
Part B
A B
Part C
A B
7.A B
8.Part A
A B
Part B
A B
C D
C D
C D
C D
C D
C D
9.Constructed Response
10. Part A
A B C D
Part B
A B C D
11. Constructed Response
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