Step-By-Step Experiments with Sound
Explains what sound is, how it travels, and how we hear sound; describes the scientific method; and includes experiments testing different sound concepts --
Explains what sound is, how it travels, and how we hear sound; describes the scientific method; and includes experiments testing different sound concepts --
The Child's World, Inc · inglés · ISBN 9781626879621
The Child's World · inglés · ISBN 9781609735937
Child's World, Incorporated, The · inglés · ISBN 9781614731672
Child's World, Incorporated, The · inglés · ISBN 9781503801356
