Describes the alternative methods of generating energy instead of using fossil fuels, including solar power, wind power, and biofuels, and speculates on the future of alternative energy.
This series introduces simple science topics using everyday objects and situations that readers can recognize in the world around them. This title looks at light: what it does, where it comes from, wh
This series introduces simple science topics using everyday objects and situations that readers can recognize in the world around them. This title looks at sound: how sounds are made, how they travel,
This series introduces simple science topics using everyday objects and situations that readers can recognize in the world around them. This title looks at forces: what they are, what effects they hav
This book explores the food chains and webs that exist in an ocean habitat. It equips readers with crucial vocabulary, using examples from that habitat to explain the roles of producers, consumers and
This book explores the rich food chains and webs that exist in a rain forest habitat. It equips readers with crucial vocabulary, using examples from that habitat to explain the roles of producers, con
This book explores the food chains and webs that exist in river habitats. It equips readers with crucial vocabulary, using examples from that habitat to explain the roles of producers, consumers and d
This book explores the food chains and webs that exist in a desert habitat. It equips readers with crucial vocabulary, using examples from that habitat to explain the roles of producers, consumers and
This book explores the food chains and webs that exist in a grassland habitat. It equips readers with crucial vocabulary, using examples from that habitat to explain the roles of producers, consumers
This book explores the food chains and webs that exist in a mountain habitat. It equips readers with crucial vocabulary, using examples from that habitat to explain the roles of producers, consumers a
Presents information on how investigators use evidence at the crime scene to identify murder victims, determine the methods used by the killer, and discover clues to help them track down the person re
