This title explains what an ecosystem is and how the plants and animals within an ecosystem rely on and affect its existence. Different types of ecosystems are described, as well as the food webs within them. The book discusses how some changes to an ecosystem can be good and how some harmful changes can destroy them as well as what an important role students can play in keeping these intricate ecosystems alive.
Jumping, spinning, twisting, turning, racing—the power is in your hands. Make bots that jump and spin, build a rubber band racer and a bottle boat, power a boat and a car with air. Make machines that move!
Easy to follow three-dimensional makerspace projects, including 3D printing, for library, classroom and home.
A look at some of the most amazing elevators in the world. Addresses the obstacles of construction, the impact on society, and the science of engineering such superstructures.
Alex is part of the Gumshoe Gang at Watson Elementary and is a science fanatic. He and his friends help solve cases that happen in their school. This time Alex is the one affected by a crime and the case revolves around him. Someone has destroyed his Science Fair project! Can the Gumshoe Gang find the culprit before the Science Fair tonight? Will Alex still be able to participate in the Science Fair he was so excited about? These mysteries are perfect for your early fluent reader. With longer sentences and fewer illustrations, these are suited to keep readers guessing as they solve for clues. Paired to the nonfiction title Winning By Waiting.
En esta colección, explora la geología y las ciencias de la Tierra con impresionantes ilustraciones en cada libro.
En el libro se explican las causas principales de extinción de las plantas.
En esta colección, explora la geología y las ciencias de la Tierra con impresionantes ilustraciones en cada libro.
The ground-breaking Tesla is feautured in this title with information on how it is changing the automobile world.
This title highlights all the gross jobs that people do every day.
This title gives the history of the one and only Ferrari Spider and how it has changed and evolved over the years.
This title gives the history of the Dodge Charger and how it has changed and evolved over the years as one of America's favorite automobiles.
This title gives the history of the famous Corvette and how it has improved and changed over the years.
This title gives the history of the famous Porsche 911 and how it has evolved and changed throughout the years.
This title gives the history of the famous Ford Mustang and how it has changed and evolved throughout the years.
Examine how the fossils document the appearance, diversification, and extinction of many life forms.
Take an in-depth look at earth science in this encyclopedia.
The question of who eats what in a freshwater habitat is answered in this book about food webs.
The animals of the grasslands and savannahs are highlighted in this comprehensive book about food webs.
This book looks at a forest food chain, discussing the plants and animals that are native to this environment, threats to their survival, and what is being done to protect their habitat.
Beautiful photos and text examines the issues endangered Steller Sea lions face and how they can be saved.
Beautiful photos and text examines the issues endangered whooping cranes face and how they can be saved.
Amazing photos and interesting facts reveal environmental issues vultures face as they hunt for food and raise their young.
Discover the vital role of disappearing wetlands and what can be done to protect and restore this resource.