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Light Energy - Printable Science Worksheets year 3 - Wayground

Light Energy

20 questions

3rd - 3rd Grade

Science

Light Energy is a Grade 3 science worksheet that uses 20 multiple-choice questions to build foundational understanding of how light behaves. Students identify that light travels in straight lines, recognize reflection and refraction, and classify materials as transparent, translucent, or opaque based on how light passes through them. They also apply these ideas to familiar examples such as aluminum foil, glass, water, and prisms. This free printable worksheet helps students connect key vocabulary to observable light interactions while reviewing that light is a form of energy and that the sun is the main source of light. It is suitable for science practice, lesson review, independent work, or a quick check of understanding after instruction. A complete answer key is included so teachers can review students’ choices efficiently and address confusion between related concepts such as reflecting, refracting, and transmitting light.

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Light Energy

Total questions: 20

Name
Class
Date
1.
Light always travels in a...
a)
Curved line
b)
Zig Zag line
c)
Up and down
d)
Straight line
2.
What will happen when a pencil is placed in water? 
a)
Reflect
b)
Refract
c)
Absorb
d)
Transmit
3.
This is an example of? 
a)
Absorb
b)
Reflect
c)
Refract
d)
Transmit
4.
When light passes through a prism it?
a)
Bounces back
b)
Reflects
c)
Refracts
d)
Absorbs
5.
Materials that do not let any light pass through them
a)
opaque
b)
translucent
c)
transparent
d)
reflection
6.
Materials that let some light rays pass through but scatter some of the other rays
a)
translucent
b)
transparent
c)
opaque
d)
wood
7.
smooth, shiny surfaces
a)
reflect
b)
refract
c)
absorb
8.
When light can easily pass through an object, we say that that object is ___ .
a)
transparent
b)
translucent
c)
opaque
d)
transported
9.
When light partially passed through an object, we say that that object is ____ .
a)
translucent
b)
transparent
c)
opaque
d)
optical
10.
When light cannot pass through an object, we say that that object is ____ .
a)
opaque
b)
transparent
c)
translucent
d)
translated
11.
Which object would most likely reflect light?
a)
carpet
b)
paper 
c)
aluminum foil
d)
plastic bag
12.
Objects look different under water because
a)
the light rays bounce off
b)
the light rays bend
c)
the light rays stop
d)
the light rays travel straight
13.
Glass usually allows light to 
a)
absorb into it
b)
pass through it
c)
change into wavy lines
d)
be blocked
14.
The main source of light is
a)
the sun
b)
the moon
c)
the stars
d)
Jupiter
15.
Light is a form of 
a)
Matter
b)
Reflection
c)
Energy
d)
Force
16.

Lenses, like camera lenses or microscopes...

a)

reflect light

b)

refract light

c)

absorb light

17.

What is the difference between refraction and reflection?

a)

Light bends when it is reflected and bounces off when it is refracted.

b)

Light bounces off when it is reflected and bends when it is refracted.

c)

Light travels in curved lines when it is reflected and in straight lines when it is refracted.

d)

When light is refracted, it no longer travels.

18.

Which object best reflects light?

a)

Sealable bag

b)

Shower curtain

c)

Aluminum foil

d)

Drinking Glass

19.
Which is the correct order of colors in the rainbow?
a)
AJSKHSH
b)
ROYGEEBIV
c)
ROBBIEBIV
d)
ROYGBIV
20.

Is White part of ROYGBIV?

a)

No

b)

Yes

c)

In the Clouds

d)

Inbetween the Colors

Answer Key

Light Energy

Total questions: 20

1.
d) Straight line
2.
b) Refract
3.
b) Reflect
4.
c) Refracts
5.
a) opaque
6.
a) translucent
7.
a) reflect
8.
a) transparent
9.
a) translucent
10.
a) opaque
11.
c) aluminum foil
12.
b) the light rays bend
13.
b) pass through it
14.
a) the sun
15.
c) Energy
16.
b)

refract light

17.
b)

Light bounces off when it is reflected and bends when it is refracted.

18.
c)

Aluminum foil

19.
d) ROYGBIV
20.
a)

No

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FAQs

What does the Light Energy worksheet cover?

This Grade 3 science worksheet uses 20 multiple-choice questions to assess how light travels and interacts with materials. Students distinguish reflection from refraction, identify transparent, translucent, and opaque materials, and apply these terms to examples such as water, prisms, glass, and aluminum foil.

How can I use this worksheet to teach reflection, refraction, and light transmission?

Introduce the worksheet after demonstrating light with a mirror, a pencil in water, or a prism. As students answer the multiple-choice questions, ask them to explain whether light is bouncing back, bending, or passing through an object, then use their choices to clarify the differences among reflection, refraction, and transmission.

What mistakes should I watch for when students complete this Light Energy worksheet?

Students may confuse reflection with refraction, especially when deciding whether light bounces off a surface or bends as it passes through water or a prism. They may also mix up transparent, translucent, and opaque; have them connect each term to how much light passes through the material. Distractors may also lead students to overlook that light travels in a straight line and is a form of energy.

How do I assign and grade this Light Energy worksheet?

The worksheet is available as a printable PDF and as a digital quiz on Wayground, and it includes a complete answer key for all 20 multiple-choice questions. For printable submissions, you can scan student work with the Wayground for Teachers app to support grading and review.

How can I differentiate this Light Energy worksheet for my students?

In the worksheet’s Advanced Settings, adjust font spacing or choose a larger font size to make the 20 multiple-choice items easier to read. You can also enable a dyslexia-friendly font or translate the worksheet into another language while students work with the light-behavior and material-classification questions.

Where can I find more worksheets like this on Wayground?

Wayground offers a comprehensive collection of free printable worksheets and practice problems across all subjects, with downloadable PDFs and answer keys to support essential skills and concepts. Browse more resources at https://wayground.com/en-us/worksheets.

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