What Is Sound?

Can you hear a whistle from a long way away? Books in this series introducechildren to sound and hearing. Each book uses simple repetitive text to teachchildren... » 

Can you hear a whistle from a long way away? Books in this series introducechildren to sound and hearing. Each book uses simple repetitive text to teachchildren basic vocabulary and includes stunning photographs that show howsounds can be made in many different ways. In What Is Sound? children learnabout vibrations sound waves and echoes. «