Tell Me When? Collection of 12 Books (When Does A Flame Turn Blue?, Does a computer sleep?, Do Frogs Blink?, Did Dinosaurs Rule the Earth, Germs Good For Me?, Do Bees Dance? & More) Titles in This Set: When Does a flame turn blue? When Does a computer sleep? When Do Frogs Blink? When Did Dinosaurs Rule the Earth? When Are germs good for me? When Do Bees Dance? When Was the Selfie Stick Invented? When Was The Sun Born? When Was The First Robot Made? When Does An Albatross Come Ashore? When Does The eucalyptus Shed Its Bark? When Does The Internet Face Traffic? Description: This collection of 12 books is ready to answer the questions of young, inquisitive minds! The Tell Me When? series is a curation that seeks to answer the ‘When’ of a wide range of subjects through simple explanations. A sure shot way of making kids learn about new things while indulging their curiosities about the world!