Sound
Movements called vibrations produce sound. Small vibrations make a quiet sound. Big vibrations make a loud sound. This book teaches children what sound is and how it can be measured.
| Main Author: | |
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| Format: | EAUDIO |
| Other Format: | EBOOK |
| Language: | ENGLISH |
| Published: |
Bellwether Media
2008
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| Series: | First Science |
| Subjects: |