🔬Greesha's Science
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Unit 2

Sound

How sounds are made and heard

Badge to earn: 🎵 Sound Sleuth

Lessons

  1. Lesson 1 🥁
    How Are Sounds Made?
    Every sound you hear starts with something vibrating.
  2. Lesson 2 🎚️
    Volume and Pitch
    Sounds can be loud or quiet, high or low. Volume and pitch describe these differences.
  3. Lesson 3 📢
    Changing the Volume of Sound
    You can make sounds louder or quieter in lots of ways.
  4. Lesson 4 🎸
    Changing the Pitch of Sound
    Pitch depends on how fast something vibrates. We can change pitch by changing the object.