Light, Sound, and Messages Word Search

Grade 1 • Light, Sound, and Communication • Ages 6–7 • Beginner • About 14 minutes

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  • Beginner
  • About 14 min
  • 12 words
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Explore:Science Word Search Printable • Grade 1 Science Word Search Printable • Light, Sound, and Communication Word Search Printable • Grade 1 Light, Sound, and Communication Word Search Printable

Build Grade 1 vocabulary about light, sound, and communication with a printable word search, exact definitions, and simple investigations.

For parents and caregivers

What your child will practice

  • Sort key words into ideas about light, sound, and ways people share information.
  • Explain that light helps us see and that sounds begin when something vibrates.
  • Name a light or sound signal that people use to communicate over a distance.

How to use this puzzle at home

  1. Preview the word bank together and ask your child to point out the light words and the sound words.
  2. Have your child circle each hidden word, say it aloud, and use a definition for help when needed.
  3. After solving, test one safe light signal and one sound signal, then discuss what message each could carry.

Word List

  • LIGHT
  • SOURCE
  • BRIGHT
  • SHADOW
  • BLOCK
  • SOUND
  • VIBRATE
  • LOUD
  • QUIET
  • SIGNAL
  • MESSAGE
  • COMMUNICATE

Printable Puzzle

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Vocabulary guide

Use these short definitions before or after the word search. Ask your child to explain a few in their own words.

Light
Energy that travels from a source and makes objects visible when it reaches our eyes.
Source
The place or object where light or sound begins.
Bright
Giving off or reflecting a large amount of light.
Shadow
A dark area made when an object blocks light from reaching a surface.
Block
To stop light from passing through a material or space.
Sound
Energy made by vibrations that travels through matter to our ears.
Vibrate
To move back and forth quickly around the same position.
Loud
Describing a sound with high volume that is easy to hear.
Quiet
Describing a sound with low volume that is not loud.
Signal
A light, sound, or action that carries information to someone.
Message
Information that one person or group sends to another.
Communicate
To send or receive information by using words, sounds, lights, signs, or actions.

Talk about the science

  • Why do we need light from a source in order to see an object?
  • What object can you safely make vibrate to produce a sound?
  • When might a flashing light communicate better than a spoken message?

Try one more thing

Extension activity

Make a message-code challenge with an adult. Choose two meanings for a flashlight blink or gentle tap, send a short signal from across the room, and record whether the receiver understood it.

Teacher and tutor note

Classroom adaptation

Use the puzzle to launch three sorting columns: light, sound, and communication. Partners can place word cards in a column, demonstrate a safe signal, and explain why it belongs there.

NGSS curriculum connection: Disciplinary core ideas PS4A, PS4B, PS4C. Use the worksheet for vocabulary practice alongside hands-on investigation and discussion.

Created by PuzzleShore. Last reviewed .

© PuzzleShore. This puzzle and its answer key are licensed under CC BY-NC 4.0. You may share and adapt it for noncommercial use with attribution.

Attribution: “Light, Sound, and Messages Word Search” by PuzzleShore — https://puzzleshore.com/science-word-search-printable/puzzles/light-sound-communication-word-search/ — CC BY-NC 4.0

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