Hearing Voices – Teaching Children Sounds for Kids – Children’s Acoustics & Sound Books – (PDF/EPUB Version)

I can hear you, I can hear me! But who is that voice talking back to me? Playing with echoes is always fun, as it’s like having a secret friend hiding in the mountains. This book will teach your child what echoes are and how they are formed. It strives to give you the scientific truths behind the most exciting childhood experience any child can have!