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This Title Introduces Students To The Basic Concept Of Sounds. How Sounds Can Be Heard But Not Seen. How Sound Is A Form Of Energy That Is Transmitted Through Sound Waves Which Travel Through Your Eardrum To Be Heard. How Sound Travels Through Air And At What Rate Of Speed. Useful Examples Are Given Throughout To Help Students Understand The Concept.
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Limba Engleză ● Format PDF ● Pagini 24 ● ISBN 9781618103710 ● Editura Rourke Educational Media ● Publicat 2012 ● Descărcabil 3 ori ● Valută EUR ● ID 5959581 ● Protecție împotriva copiilor Adobe DRM
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