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Changes All Around
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| Listen to the Sound |
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| | Sound is a kind of energy. |
| | When something moves back and forth fast, it vibrates. |
| | When something vibrates, it makes sound. |
| | Pitch is how high or how low sound is. |
| | Sounds can be high or low. |
| | Sounds can also be loud or soft. |
| | All things make sounds that are special to them. |
