Sound & Light Waves

Subject: Science  ·  Grade level: 4th

Discover how waves carry energy and information through the world around you. When you hear a friend's voice or see a rainbow, waves are at work. We'll explor

In this lesson

• What is a wave?
• Sound waves
• Light waves
• Sound vs. Light

Key terms

Wave

A pattern of energy that travels through a medium or space.

Amplitude

How tall a wave is — bigger amplitude = louder sound or brighter light.

Wavelength

Distance between two wave peaks.

Sound & Light Waves lesson on BrightPath

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