Grade 2 · Science · Lesson 20

Discover How Sound Travels

Put your hand on your throat and say "ahhh." Did you feel it buzzing? That buzz is a vibration — a back-and-forth movement — and vibration is the starting point of every sound you have ever heard.

What this lesson teaches

1Explain that sound starts as a vibration
2Describe how sound travels from source to ear to brain
3Tell the difference between pitch and volume

Free · 7 lessons by email

Try the curriculum — one lesson per subject.

Pick your grade. We'll send you one free lesson from each of the 7 subjects, over 7 days. No account, no credit card.

Already convinced? See full membership plans →