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Find out all about NASA in this out-of-this-world addition to the What Was? series. The National Aeronautics and Space Administration, better known as NASA, began in 1958. With its creation, the United States hoped to ensure it won the space race...

What can you find in an ocean? From rolling waves above to swimming creatures below, the ocean is a busy place! Discovering facts about oceans and ocean life will captivate beginning readers. All Little Pebble books have an Accelerated Reader ATOS level...

What can you find in a rain forest? From chattering birds and sleepy sloths, the tall trees of the rain forest are full of life! Discovering the secrets of the rain forest will captivate beginning readers. All Little Pebble books have an Accelerated...

What can you find at the North and South Pole? With icy land and cold-loving creatures, Earth's poles are cool places! Discovering facts about both polar regions will delight beginning readers. All Little Pebble books have an Accelerated Reader ATOS...

What can you find in an ocean? From rolling waves above to swimming creatures below, the ocean is a busy place! Discovering facts about oceans and ocean life will captivate beginning readers. All Little Pebble books have an Accelerated Reader ATOS level...

What can you find in a rain forest? From chattering birds and sleepy sloths, the tall trees of the rain forest are full of life! Discovering the secrets of the rain forest will captivate beginning readers. All Little Pebble books have an Accelerated...

What can you find in a forest? From the treetops to the forest floor, a forest is full of life! Falling leaves, busy squirrels, and other secrets of the forest will delight beginning readers. All Little Pebble books have an Accelerated Reader ATOS level...

Want to go to space? Before launch, you've got some work to do! Find out what scuba diving, medical skills, and survival training all have to do with being an astronaut. Then it's 3-2-1 lift off!

Want to go to space? Before launch, you've got some work to do! Find out what scuba diving, medical skills, and survival training all have to do with being an astronaut. Then it's 3-2-1 lift off!

For more than 50 years, humans have been exploring space. How do we get there? Why do we go? And where will we go next? Discover the wonders of space flight from the past, present, and far into the future.

What's a spacewalk? Step outside your space vehicle, and you're spacewalking! Whether you're collecting samples, fixing equipment, or sightseeing, spacewalking is an out-of-this-world experience!

Have you ever watched video of astronauts walking on the moon? Margaret Hamilton programmed software that helped get them there. As a girl, Hamilton loved math and science. She grew up during a time when very few women studied computer science, but...

When Ellen Ochoa was young, male American astronauts walked on the moon. But girls were not allowed to be astronauts. Girls didn't often study science either--but Ochoa didn't let that stop her. In high school, Ochoa loved math and science. In college,...

How does water from a river turn into a raindrop? Follow each step in the water cycle--from evaporation to condensation to rainfall--in this fascinating book!

A Robert F. Sibert Informational Honor Book A Green Earth Book Award Winner This up-close look at a fascinating scientific discovery highlights the critical role predators such as sea otters play in keeping ecosystems healthy. In Elkhorn Slough, an...

The ocean is teeming with all kinds of life. Tiny algae, schools of fish, massive whales, prickly urchins, reefs of coral, life takes many amazing forms in this watery world. Readers of this fascinating book will learn all about marine life. Gorgeous...

The ocean is teeming with all kinds of life. Tiny algae, schools of fish, massive whales, prickly urchins, reefs of coral, life takes many amazing forms in this watery world. Readers of this fascinating book will learn all about marine life. Gorgeous...

Readers with inquisitive minds are guaranteed to enjoy this fascinating look at life science in action. Highlighting one of Earth's most popular animals, this book investigates the science behind the polar bear's unique adaptations. Each chapter is...

Readers with inquisitive minds are guaranteed to enjoy this fascinating look at life science in action. Highlighting one of Earth's most popular animals, this book investigates the science behind the polar bear's unique adaptations. Each chapter is...

The taiga is unlike any other place on Earth. It is the largest biome on Earth, with long, cold winters that can reach negative 65 degrees Fahrenheit! The plants, animals, and people that live in the taiga are built for survival. This book introduces...

Known for their astounding biodiversity, tropical rainforests are a perennially popular topic of study in elementary schools. Readers will encounter the fascinating plants and animals that can be found in the canopy, understory, and forest floor. They'll...

Deserts, among the least appreciated and understood areas on earth, are often mistaken for barren and lifeless places. This book dispels that myth and introduces young readers to these fascinating and dynamic regions of our planet. Drawing on...

Forests fascinate readers and hikers alike. And the deciduous forest, perhaps the "classic" forest biome, fills our stories and is the go-to spot for many outdoor activities. This informative book describes the forest many think they know, presenting the...

Engage readers with stories of life in a pond. Readers are introduced to animal and plant life in the pond as it wakes up from winter. Additional features include a table of contents, phonetic glossary, index, and sources for further research. A...

Tornadoes are one of the deadliest and most frightening natural disasters. They roar through an area quickly, tearing a path of total destruction. What is the science behind them? This book explains what a tornado is, the meteorological conditions...

Learn how the continents have changed throughout time and how continental drift has influenced the world we live in today! Explore how the continents have drifted, from the Devonian Era to the Jurassic Period, to form the world as we know it! This...

This captivating book offers a close and exciting account of Hurricane Katrina and its aftermath, recounting what it was like to live through and survive this disaster. Readers will gain a unique perspective of the enormity of the tragedy and a greater...

This captivating book offers a close and exciting account of Hurricane Katrina and its aftermath, recounting what it was like to live through and survive this disaster. Readers will gain a unique perspective of the enormity of the tragedy and a greater...

We're only just beginning to learn about the incomprehensibly vast universe that exists beyond the edges of our own solar system. This fascinating guide touches on constellations, galaxies, star types, the life cycle of stars, nebulae, quasars, dark...

We're only just beginning to learn about the incomprehensibly vast universe that exists beyond the edges of our own solar system. This fascinating guide touches on constellations, galaxies, star types, the life cycle of stars, nebulae, quasars, dark...

This investigation into the human abdomen, stomach, and intestines is packed with vivid high-quality, full-color photographs that provide a deep and textured view into the human midsection. The function and position of such body parts as the abdominal...

This investigation into the human abdomen, stomach, and intestines is packed with vivid high-quality, full-color photographs that provide a deep and textured view into the human midsection. The function and position of such body parts as the abdominal...

Without oxygen, no part of the body--not the brain, the heart, the legs, the arms, or anything else--would work. The lungs are the most important component of the respiratory system, the process by which oxygen is supplied to all living cells. Readers...

Without oxygen, no part of the body--not the brain, the heart, the legs, the arms, or anything else--would work. The lungs are the most important component of the respiratory system, the process by which oxygen is supplied to all living cells. Readers...

How do animals interact within an ecosystem? What is an animal's role within their food chain? This life science guide introduces readers to familiar and exotic producers, consumers, and decomposers to give them a well-rounded look at the flow of energy...

Space is full of mystery. Scientists think that the planets, stars, and other space objects we see make up just 4 percent of the universe! Scientists studying space have a lot of choices to make. Future space explorers will have many choices to consider...

From the written word to the cell phone, human communication has come a long way. What might the future hold? Readers can discover how virtual reality, holograms, and a fully connected internet of things may affect how they communicate in the near and...

Muddy Creek in Edgewater, Maryland is the site of a major makeover. The land around the stream has worn down. Find out what caused Muddy Creek to erode, and the many steps involved in saving it. Created in collaboration with the Smithsonian Institution,...

A scientific twist on a beloved children's classic that's sure to delight both parent and child!Scientist, Scientist, Who do you see?I see Marie Curie in her laboratory!The adored children's classic Brown Bear, Brown Bear gets a nerdy makeover in this...

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