This learning resource is available in interactive and printable formats. The interactive worksheet can be played online and assigned to students. The Printable PDF version can be downloaded and printed for completion by hand.
This 250-word reading passage introduces fourth-grade students to the fundamental concept that waves carry information from one place to another, aligned with NGSS standard 4-PS4-3 and Disciplinary Core Idea PS4.C. Students explore how sound waves carry voices during conversations, light waves carry images to our eyes, and digital patterns transmit messages through technology. The passage uses age-appropriate language and real-world examples like telephones, television, and walkie-talkies to help students understand wave-based communication. Audio-integrated features support diverse learners by providing text-to-speech options. The passage explains key vocabulary terms including waves, information, sound waves, light waves, digital patterns, and devices. Students learn that different types of waves serve different communication purposes and that technology converts information into wave patterns for transmission. Accompanying activities include multiple-choice comprehension questions, writing prompts that ask students to apply their understanding, and graphic organizers for comparing different wave types and analyzing cause-and-effect relationships in wave communication. This foundational knowledge prepares students for hands-on investigations and deeper exploration of how waves function as tools for communication in science and everyday life.
CONTENT PREVIEW
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Waves are disturbances that move energy from one place to another. Waves can carry information, which is facts or messages that help us understand something. This matters because waves help us communicate and learn about the world around us.
When you talk to a friend, sound waves carry your voice through the air. Sound waves are vibrations that travel through materials like air, water, or solid objects. Your vocal cords vibrate and create sound waves that move to your friend's ears. Without sound waves, your friend couldn't hear you even if you were standing right next to each other.
Light waves also carry information. Light waves are a type of energy that our eyes can detect. When you look at a book, light waves bounce off the pages and travel to your eyes. Your brain uses this information to see the words and pictures. Light waves work like messengers delivering pictures to your eyes.
Technology uses waves to send information too. Phones turn your voice into digital patterns, which are coded signals made of waves. These patterns travel through wires or through the air to reach another phone. Television, radio, and computers also use waves to send information. Even walkie-talkies use radio waves to carry messages between devices, which are tools or machines that do specific jobs.
Different types of waves can carry different kinds of information over short or long distances.
What do waves carry from place to place?
Energy and informationOnly waterOnly soundOnly light
What creates sound waves when you talk?
Your ears vibratingYour vocal cords vibratingYour brain thinkingYour mouth opening
How do light waves help you read?
They make soundThey create vibrationsThey bounce off pages to eyesThey turn into digital patterns