This book, takes a closer look at all kinds of modern gadgets and inventions that make life easier. You'll learn about machines you use at home and vehicles for getting around.'
In this book you can learn about machine mechanism in our daily activities.'
This book covers all the basic questions a young child may have about the who, what, why, and especially the how of everyday things. Focusing on how things are made, refined, and used by people, this book provides kids with simple, accurate explanations.
Explain and answers to all questions about energy'
The World Wide Web has changed the way we communicate and socialise with our friends. Super Social Media and Awesome Online Safety investigates how social media sites work and how to stay safe in the online world. Want to type a tweet or write a blog? Upload your photos and videos? Share your news on a social media site? Find out how here! Uncover the code behind the social media networks th…
What do the rollere coaster's machines work?