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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 concepts.

EAN: 9781627172998
Author:
Grade: 4
Text Type: Science / Physical Science
Guided Reading Level: U
Lexile Level: 825
Authentic / Translation: Translation