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Identify signals and communication

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Identify signals and communication — free printable Grade 4 Science worksheet

Signals and communication are the focus of this Grade 4 Physical Science worksheet, guiding students to explore how information is encoded and transmitted through wave-based signals in everyday technologies like phones, radios, and cameras. Teachers can use it within a waves and information unit to connect abstract physics concepts to devices students actually use, making the content feel relevant and meaningful. Understanding signal transmission is increasingly important as students navigate a technology-rich world.

Learning objectives

  • Identify how signals carry information through different communication technologies
  • Describe the role of waves in encoding and transmitting information
  • Connect signal and communication concepts to real-world everyday devices

How to use this worksheet

  1. Select “Sign in / Sign up to download”, then sign in with Google or email to get the PDF from KiwiBee Printables.
  2. Print at home or in class for Grade 4; it's no-prep, with no extra materials needed.
  3. Use the included answer key to mark it in seconds.

Good for

ClassworkHomeworkWarm-upCentersSmall groups

Answer Key

Answer key for Identify signals and communication — free printable Science worksheet

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