Light and sound /
Richard and Louise Spilsbury.
- 48 pages : color illustrations ; 25 cm.
- Essential physical science .
Includes bibliographical references (page 46) and index.
What are light and sound? -- How do we make sounds? -- How do we hear sounds? -- How do we use sound? -- How does light move? -- How does light help us to see? -- How do we use light? -- How can we look after our eyes and ears?