Sound (First Science: Blastoff Readers, Level 4) - Softcover

Manolis, Kay

 
9781600143533: Sound (First Science: Blastoff Readers, Level 4)

Inhaltsangabe

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.

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