ace the coding interview with Python and JavaScript

How are day and night different in each of the main habitats on Earth? Discover it with this series of books!The Arctic is a cold and unusual place. There are six months of daylight and six months of darkness. How does this affect the creatures that live there? What do animals such as polar bears, walruses, and reindeers do during the long Arctic days and nights? Learn about the Arctic habitat while you follow its natural cycle in this beautiful book!ABOUT THE SERIES:Habitats are the homes of plants and animals. There are many habitats in the world, and they are all different! But habitats themselves can also be very different when the sun shines... and when the stars are out! Some of the animals that live in these habitats are active during the day. They seek the heat and the light of the sun. While other animals are active at night. They like to come out once the temperatures drop. Discover the different habitats of Earth, and learn what animals do as the day goes by, with this new s

Kids love to be the experts! Now they can feel like real pros with this exciting nonfiction series for beginning readers. Kids will be hooked on the thrilling real-world topics and big, bright photos. Each book features simple sentences and sight words that children can practice reading. Then, with support, kids can dig deeper into the extra facts, Q&As, and fun challenges.Fans of this series will be eager to become real experts!These word pairs are all different. But they have one thing in common. Each is a pair of words that have completely different meanings! Do you know the opposite of fast? How about the opposite of big? With this book you can become an expert!

How are day and night different in each of the main habitats on Earth? Discover it with this series of books!The ocean can be bright and warm or dark and cold. During the day, the sunlight heats the water surface. At night, everything turns dark. How does this change affect the creatures that live there? What do animals such as sharks, turtles, and whales do as the day goes by? Learn about the ocean habitat while you follow its daily cycle in this beautiful book!ABOUT THE SERIES:Habitats are the homes of plants and animals. There are many habitats in the world, and they are all different! But habitats themselves can also be very different when the sun shines... and when the stars are out! Some of the animals that live in these habitats are active during the day. They seek the heat and the light of the sun. While other animals are active at night. They like to come out once the temperatures drop. Discover the different habitats of Earth, and learn what animals do as the day goes by, wit

This brand-new series highlights some of the major contributions women have made in the world of science.Did you know that the technology behind cell phones was based on an idea developed during World War II by the Hollywood star Heddy Lamar to prevent the enemy intercepting radio messages? The computer and other electronic devices have changed life dramatically over the last 70 years―and many of the key breakthroughs in technology were made by women. These women’s achievements were often highly specialized and have been widely overlooked. This book tells their stories and describes their vital contributions.

Presents the characteristics of a predator and provides examples of some of the top predators of the animal kingdom, including the polar bear, bald eagle, tiger, Goliath bird-eating spider, and king c

Presents vocabulary words for objects commonly found at home, including items in the bedroom, the bathroom, the kitchen, and the garage.

Presents vocabulary words for objects commonly found on vacation, including items at a rest stop, in the country, and on the beach.

Presents vocabulary words for objects commonly found at school, including items in the classroom, at the playground, and in the cafeteria.

Provides facts about European castles, describes the structures that compose them, and includes an activity.

Young readers discover what they can do to reduce, reuse and recycle.It doesn't take a lot to reduce the amount of trash we create. Taking action can be as simple as recycling bottles and cans or brin

Conditions on Earth are becoming more and more extreme and kids want to learn about it! Is it true that millions of earthquakes happen every year on Earth? Yes! Most earthquakes are just too small for

This brand-new series highlights some of the major contributions women have made in the world of science.Women have led the way in learning about the living things with which we share the planet. They have discovered dinosaur fossils and the tools made by our earliest ancestors, and were among the pioneers of the study of insects. They have spent years living with chimpanzees, gorillas, and orangutans in order to better understand the connections between humans and other primates. They have also pioneered the investigation of the genes by which adult organisms pass on characteristics to their young. Women were also among the most important pioneers in the conservation of the Earth’s most fragile ecosystems. This book tells their stories and describes their vital contributions.

Kids love to be the experts! Now they can feel like real pros with this exciting nonfiction series for beginning readers. Kids will be hooked on the thrilling real-world topics and big, bright photos. Each book features simple sentences and sight words that children can practice reading. Then, with support, kids can dig deeper into the extra facts, Q&As, and fun challenges.Fans of this series will be eager to become real experts!Sometimes we eat the leaves of a plant. Sometimes we eat the roots. These foods from plants are all good for us! What do you know about the fruits and vegetables that come from plants? With this book you can become an expert!

Kids love to be the experts! Now they can feel like real pros with this exciting nonfiction series for beginning readers. Kids will be hooked on the thrilling real-world topics and big, bright photos. Each book features simple sentences and sight words that children can practice reading. Then, with support, kids can dig deeper into the extra facts, Q&As, and fun challenges.Fans of this series will be eager to become real experts!Some are warm and sunny. Some are cold and wet. There are four different seasons in a year! What do you know about winter, spring, summer, and fall? With this book you can become an expert!

Follow the robot and get ready to use math to learn to code!1 robot … 2 robots … 3! Programmers use math every day to write code that helps computers and robots do their jobs. Join a real coder to lea

Emma and Theo were working together on a class project about shark's teeth. A trip to their school library and the neighborhood libraries put the kids in touch with two librarians who were more than h

Presents the basic principles of gravity, a history of how the theory was developed, the revisions made by Albert Einstein, and descriptions of how gravity works in space, with examples from America's

Profiles the former first lady, Senator, Secretary of State, and presidential candidate, covering her youth, relationship with President Bill Clinton, and social work around the world.

Presents the life and career of the famous boxer, including his childhood, his early successes, his participation in the Civil Rights Movement, and his struggles with Parkinson's disease.

Helps children with ADHD, their loved ones and their friends learn about how the condition affects millions of people around the world and how it is diagnosed and treated. Simultaneous.

This brand-new series highlights some of the major contributions women have made in the world of science.Women have historically been associated with caring for the sick, but their role in health sciences goes far beyond their traditional role. Women played a leading role in placing hygiene and nursing on a scientific footing. They have also advanced surgical techniques, developed cures for killer diseases, learned about human anatomy, and figured out the chemistry behind some of the biochemicals on which humans depend for their health. This book tells their stories and describes their vital contributions.

This brand-new series highlights some of the major contributions women have made in the world of science.Women have been pioneers of inventions. Some have come up with practical ways to solve problems in their own lives, such as Marie van Brittan Brown, who invented closed-circuit TV because she did not feel safe opening the door in her New York City tenement block in the 1960s. Other women have been trained scientists working in laboratories, such as Stephanie Kwolek, inventor of bullet-proof Kevlar. Few of these women have received full credit, because their inventions are not always spectacular, yet we all use them every day: the windshield wiper, the paper bag, the coffee filter, and the diaper. This book tells their stories and describes their vital contributions.

A seed sprouts into a vine with pretty blossoms. Soon a bright orange pumpkin will be ready to pick. Get an up-close look at the life cycle of this festive fall fruit―from seed to pumpkin―all in the p

Which penguins build nests with rocks?Side By Side is a nonfiction series that is perfect for reading together, this book features simple, predictable text for beginner readers accompanied by more difficult text and vocabulary for grownups to read aloud. So find a cozy place to curl up and enjoy taking turns reading- side by side! What kind of penguins have bright pink feet? Which penguins build nests with rocks? Find out the answers to these questions and more in this charming book about penguins!

Learn how the arctic fox survives in frigid temperatures!Nature's Children series provides young readers (Ages 8-10) with fascinating information about the planet's most incredible wildlife species. Each title offers a complete picture of the animal- from birth to adulthood- and describes its place in our world, including how humans impact it and its environment. Did you know that arctic foxes have the warmest fur of any animal-or that they don't shiver until temperatures drop to around a frigid -112°F (-80°C)?

The east Asian nation of South Korea is a land of gorgeous natural landscapes, with green forests, towering mountains, and ocean beaches.It is also a land of sprawling, modern cities. Readers will mee

It's never too early to start healthy habits. This rhyme will inspire little ones to wash their hands.Rookie Toddler books offer fun ways to engage with little ones during story time and play time. Ea

The natural world comes alive for young readers with Rookie Read-About Science!Rookie Read-About Physical Science series introduces the youngest readers (Ages 6-7) to physical science concepts. Each b

An introduction to the spider, an eight-legged creature, not to be confused with the six-legged insect

This brand-new series highlights some of the major contributions women have made in the world of science.From studying stars and discovering comets to flying into space as pioneering astronauts, women have been central to learning about space. Female astronomers gave us our first understanding of how large the universe really is and how much matter it contains. They were key to designing humans’ first rocket-powered flights into space. And as soon as women could go into space themselves, they were eager to do so: some 65 women have now become space travelers. This book tells their stories and describes their vital contributions.

This brand-new series highlights some of the major contributions women have made in the world of science.What shapes our planet? Women have been answering the question for centuries on many levels. Scientists such as Marie Curie have investigated the building blocks of matter, and the physical forces that act upon them. Geologists have studied the rocks beneath our feet by venturing dangerously close to erupting volcanoes, and have figured out what lies at Earth’s center and why its surface moves as it does. Women have also led the way in exploring the planet’s atmosphere and the causes and effects of climate change, the most urgent problem scientists are trying to solve. This book tells their stories and describes their vital contributions.

: Kids are fascinated by how things are constructed, especially big things!This brand-new STEM (science, technology, engineering, and mathematics) series will take readers on visits to various work sites so they can see exactly How It's Built! Kids will follow along as a small group of fictional characters get to find out exactly what it takes to build things that they probably see all the time, like bridges, houses, boats, and cars, to things that they might dream of being inside, like skyscrapers and rockets.

Discover countries, cultures, and traditions in this new series!Every day, all around the world, kids go to school, eat lunch and play games... And yet, these universal experiences, can look very diff

Discover countries, cultures, and traditions in this new series!Every day, all around the world, kids go to school, eat lunch and play games... And yet, these universal experiences, can look very diff

Discover countries, cultures, and traditions in this new series!Every day, all around the world, kids go to school, eat lunch and play games... And yet, these universal experiences, can look very diff

Discover countries, cultures, and traditions in this new series!Every day, all around the world, kids go to school, eat lunch and play games... And yet, these universal experiences, can look very diff

Join Emma and Theo on their adventures as they meet community helpers in their neighborhood!Emma wants to make a birthday dinner for her mom, so she and Theo are headed to the supermarket to buy groce

Grab your hard hat and get ready to use math to learn all about buildings!1 skyscraper … 2 houses … 3 castles―the world is full of buildings! Architects use math every day to design buildings. Join a

Join Emma and Theo on their adventures as they meet community helpers in their neighborhood!Theo is watching the class pet bunny when it starts acting funny―and now he and Emma are headed to the veter

Join Emma and Theo on their adventures as they meet community helpers in their neighborhood!Theo and Emma are due to have their teeth cleaned and checked―and now they are headed to the dental office.