TY  - BOOK
AU  - Spilsbury,Richard
AU  - Spilsbury,Louise
TI  - Light and sound
T2  - Essential physical science
SN  - 9781432981464 (hb)
AV  - QC360 .S656 2014
U1  - 534 23
KW  - Light
KW  - Juvenile literature
KW  - Optics
KW  - Sound
N1  - 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?
ER  -