Easy Grade 4 light worksheet covering light sources, vision, and material types: opaque, transparent, and translucent. Students correct misconceptions about the moon and dark rooms, fill in source/eyes/transparent vocabulary, and explain how sunlight helps us see playground objects in NGSS 4-PS4. Students explore how light interacts with mirrors, water, and colored surfaces while testing transparent, translucent, and opaque examples in this Grade 4 worksheet.
Style:
Waves: Light and Sound
Part A: Fix the Sentence
Each sentence has an error. Rewrite it correctly on the line.
1. Fix the sentence:
We can see objects in a totally dark room with no light at all.
Rewrite: We need light to bounce off objects so our eyes can see them.
2. Fix the sentence:
The moon makes its own light just like the sun does.
Rewrite: The moon reflects light from the sun; the sun is the real light source.
3. Fix the sentence:
An opaque object lets all the light pass through it clearly.
Rewrite: An opaque object blocks light from passing through.
Part B: Fill in the Blank
Write the missing word or number on each line.
1. The sun, a lamp, and a candle flame are all examples of a light source.
2. We see a red apple because light bounces off the apple and into our eyes.
3. A clear glass window is transparent, which means light passes straight through it.
4. Frosted bathroom glass is translucent because some light passes through but the image is blurry.
Part C: Short Answer
Answer each question in one or two complete sentences.
1. How does light from the sun help a Grade 4 student see a soccer ball on the playground?
Light waves travel from the sun, which is a source, all the way to the soccer ball. The ball reflects some of the light back into the air. Those reflected light waves enter the Grade 4 student's eyes, and the brain understands the shape and color of the ball.
2. Compare an opaque book and a transparent plastic bag for letting light through.
An opaque book blocks light, so a Grade 4 student cannot see through it and a shadow forms behind it. A transparent plastic bag lets almost all the light pass through, so the student can see the shape and color of items inside the bag.
Waves: Light and Sound
★ Part A: Fix the Sentence
Each sentence has an error. Rewrite it correctly on the line.
1) Fix the sentence:
We can see objects in a totally dark room with no light at all.
Rewrite: We need light to bounce off objects so our eyes can see them.
2) Fix the sentence:
The moon makes its own light just like the sun does.
Rewrite: The moon reflects light from the sun; the sun is the real light source.
3) Fix the sentence:
An opaque object lets all the light pass through it clearly.
Rewrite: An opaque object blocks light from passing through.
★ Part B: Fill in the Blank
Write the missing word or number on each line.
1) The sun, a lamp, and a candle flame are all examples of a light source.
2) We see a red apple because light bounces off the apple and into our eyes.
3) A clear glass window is transparent, which means light passes straight through it.
4) Frosted bathroom glass is translucent because some light passes through but the image is blurry.
★ Part C: Short Answer
Answer each question in one or two complete sentences.
1) How does light from the sun help a Grade 4 student see a soccer ball on the playground?
Light waves travel from the sun, which is a source, all the way to the soccer ball. The ball reflects some of the light back into the air. Those reflected light waves enter the Grade 4 student's eyes, and the brain understands the shape and color of the ball.
2) Compare an opaque book and a transparent plastic bag for letting light through.
An opaque book blocks light, so a Grade 4 student cannot see through it and a shadow forms behind it. A transparent plastic bag lets almost all the light pass through, so the student can see the shape and color of items inside the bag.
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9 Questions
15-20 minutes
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