Why does a siren's sound change as it passes you? How does sound become music? Can sound damage our ears? This title looks at what sound is, how sound is made, how sound waves travel, and how humans and other animals hear sound. Find out why sound travels faster through water than through air, how it is possible to 'see' using sound, and how sound is recorded.
This is Book 7 in the Physical Science in Depth Series. See all Physical Science in Depth books here.
See More Educational: Physics
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Sally Morgan is a freelance author of children's science and environmental books and CD-ROMs with over 30 books to her name by a number of publishers, including Future Tech: Energy and the new Looking at Minibeasts series published by Belitha Press. Sally is a former science teacher and has a degree in Biological Science from Cambridge University. She lives
More about Sally MorganCarol Ballard is a full-time author after spending the last 15 years as a science teacher. She now writes and consults on a wide range of scientific topics.
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