Karen Kenney

A rapid river rushes by. But did you know this home for fish can help us keep the world going? Learn all about energy from water through simple, inviting text paired with vibrant images as you power up with energy

The sun gives us light and warmth during the day. That's energy But we can use energy from the sun to power things like lights, cell phones, or even our homes Learn all about energy from the sun through simple, inviting text paired with vibrant images as you power up with energy

We pump this invisible gas from the ground and use it to heat our homes and dry our clothes. But what do you know about natural gas? Learn all about energy from natural gas through simple, inviting text paired with vibrant images as you power up with energy

Spanning across the globe from the frigid poles to the warm tropics, oceans cover most of the earth. In this title, leveled text guides readers through the layers of the ocean, introducing its plants and animals and showing how oceans and people interact. Profiles and visual features reinforce the text to help beginning readers grow. Dive in and discover the unique underwater world of oceans

We pump this invisible gas from the ground and use it to heat our homes and dry our clothes. But what do you know about natural gas? Learn all about energy from natural gas through simple, inviting text paired with vibrant images as you power up with energy

Oil gives us the energy to get us going. From gasoline to jet fuel, it can all be made from oil buried deep in the ground. But what do you know about this fossil fuel? Learn all about energy from oil through simple, inviting text paired with vibrant images as you power up with energy.

Prairies are found around the world In this title, readers will learn about what makes these vast, grassy expanses special through vivid photos and engaging text. Chapters highlight prairie soil and climate, introduce plants and animals, and explore how humans and prairies interact. Features profile a notable example, show off animal life, and more. Get ready to journey through a sea of grass in this leveled title

Rain forests are home to more than half of the world's plants and animals. In this leveled title, readers will explore this important biome, learning about its layers, plant and animal life, and human impact. Profiles highlight the specs of notable rain forests, while other features show off animals and summarize the impact of humans. Readers will delight in the vivid photos and approachable text in this colorful title

Prairies are found around the world In this title, readers will learn about what makes these vast, grassy expanses special through vivid photos and engaging text. Chapters highlight prairie soil and climate, introduce plants and animals, and explore how humans and prairies interact. Features profile a notable example, show off animal life, and more. Get ready to journey through a sea of grass in this leveled title

Rain forests are home to more than half of the world's plants and animals. In this leveled title, readers will explore this important biome, learning about its layers, plant and animal life, and human impact. Profiles highlight the specs of notable rain forests, while other features show off animals and summarize the impact of humans. Readers will delight in the vivid photos and approachable text in this colorful title

Some competitors are able to crawl under barbed wire for miles. Others stay awake for days at a time. Readers will learn about some of the world's most extreme endurance competitions and how athletes train for them.

Space probes, self-assembling robots, and crash-absorbing cars all have one thing in common: their use of folding technologies. To develop these technologies, engineers are inspired by a pair of unusual sources--origami, the ancient Japanese art of paper folding, and their own backyards, where nature uses folds to squeeze large surfaces, such as ladybug wings and tree leaves, into tiny areas. Combined, origami and nature are inspiring a revolution in technology. Learn about origami's ancient history and how it has become a tool for engineers to solve some of the most complicated challenges in architecture, technology, and medicine. You'll learn the intricate mathematical laws behind basic origami folds, practice your origami skills with DIY paper folding projects, and discover the amazing complexities of NASA's Mars INSIGHT lander and PUFFER technology using the Lerner AR augmented reality app. From a nanorobot that delivers drugs inside the body to a space telescope lens that packs tightly onto a rocket and unfolds to the size of a soccer field, this new field of science is full of amazing possibilities. Engineers are only just beginning to discover what they can do with folding technology. Join them as they explore the connection between art, mathematics, and nature

Homes can be square or round or even stand on stilts. But no matter what a home looks like, home is where you are loved. The characters of Sesame Street take readers around the world to learn more about how kids live across the globe.