Phones keep us connected /

Explains how the invention of the telephone changed the world and outlines scientific activities, including how to build a string phone.

Main Author: Zoehfeld, Kathleen Weidner,
Other Authors: Nowowiejska, Kasia, 1984-
Format: Book
Published: New York, NY : Harper, an imprint of HarperCollinsPublishers, [2017]
Physical Description: 37 pages : color illustrations ; 21 x 26 cm.
Edition: First edition.
Series: Let's-read-and-find-out science.