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ScienceGrade 2

What Are Sound Waves

What Are Sound Waves

Learning Objective

Students will learn about what sound waves are.

Words to Know

Vibration: Tiny fast back-and-forth movements that make sound!; Vocal cords vibrate when you talk.
Sound wave: Invisible chain reaction of bumping particles!; Sound waves travel faster in water.
Pitch: How high or low a sound is!; Fast vibrations = high pitch.
Echolocation: Using sound echoes to see in the dark!; Bats use echolocation at night.

Check What You Learned

Quick Quiz

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What does “Vibration” mean?

Lesson Info

Grade 2

2026-07-20

Standards Alignment

4-PS4-1
Develop a model of waves to describe patterns in terms of amplitude and wavelength and that waves can cause objects to move
1-PS4-1
Plan and conduct investigations to provide evidence that vibrating materials can make sound and that sound can make materials vibrate

Keywords

2nd grade sciencescience for kidssoundwavesvibrationsound wavepitchecholocation4-PS4-11-PS4-1kids learningelementary education

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