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ScienceGrade 2nd· What Are Sound Waves

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

1 / 3

What does “Vibration” mean?

Lesson Info

Grade 2nd
2026-07-20
What Are Sound Waves

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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