Titres dans Science et technologie

Three species of bear inhabit North America: the grizzly, the polar bear, and the black bear. But the American black bear is truly North America's bear, found only in North America. Black bears range from Canada to Mexico, from New England to California.

Popcorn is a yummy snack–how is popcorn cooked? From an un-popped kernel, heat boils the water that the kernel naturally has inside it. The water turns into steam after it builds up inside. Scientists used cameras to discover how corn popped! What’s inside the kernel to make an explosive change happen–turning a kernel of corn into a tasty buttery treat–popcorn?

Have you ever struggled to concentrate because there are SO many questions buzzing around your brain? Here are answers to seventy-one of the most bamboozling questions and curious queries that you can think of. How many stars are in the night sky? Why don't animals wear clothes? Do plants have feelings? This book will define, debunk, and demystify the trickiest of questions and open your eyes to amazing facts you have never even thought of!

In this entertaining young readers edition of the environmental studies classic, Michael Pollan demonstrates how people and domesticated plants have formed a reciprocal relationship. He links four fundamental human desires—sweetness, beauty, energy, and control—with the plants that satisfy them: the apple, the tulip, coffee, and the potato. In telling the stories of four familiar species, Pollan illustrates how the plants have evolved to satisfy humankind’s most basic yearnings. And just as we’ve benefited from these plants, we have also helped them to thrive.

This book covers fascinating origin stories of 55 everyday items that were invented by accident; that is, the inventor did not expect to make the product when the product was discovered. Not only will this book share amazing stories about everyday products, but it will also inspire you. We all encounter things that go wrong, and this book reminds us that when life gives lemons, we can make lemonade. (Seriously, pink lemonade was made by accident—listen to the story inside.) Each story is written to encourage kids and adults to be curious and be inspired to create.

Have you ever wondered how kids can make money? Fun and creative ideas for how to make money, including selling lemonade, mowing the lawn, babysitting, and how to advertise your services are explored through informative and engaging content in this new addition to the How Do series.

How do animals survive in planet Earth's most extreme regions? Snow, ice, and subzero temps make the North and South Poles nearly impossible places to live. But several animals from musk oxen to penguins call these regions home. Find out how their amazing behaviors and body parts have adapted to these harsh conditions.

Find out how animals survive Earth's most extreme regions! From the rain-drenched treetops to the sun-starved forest floor, the rain forest is a tough place to live. But many animals from geckos to jaguars thrive in this environment. Discover the amazing body parts and behaviors that make living there possible.

Sing a song of science! You know the song "Home on the Range". Sing along with new words that explain the basic materials that make up our planet.

Learn about how a backhoe is operated.

Ogres have towered over us in popular fairy tales for years. Have you ever wondered what ogres smell like? Do you know where ogres live? Stomp through the chapters of this book to find out the truth about ogres.

From Earth, the spot on Jupiter looks like a small, red freckle. In fact, the spot is a huge storm as wide as two Earths! Explore the Great Red Spot and more in this book about Jupiter.

Who burrows in the mud, and who hangs from a ceiling? Who snoozes in hollow trees, and who sleeps in dark caves? Curl up and find out where different animals hibernate.

Who dives for food, and who traps food? Who hunts in packs, and who picks food using their tongue? Dig in to find out how animals eat.

Deciduous forest ecosystems can be found on nearly every continent. Countless animals and plants live in them. So what difference could the loss of one animal species make? Follow the chain reaction, and discover how important gray wolves are.

Unicorns have galloped their way through fairy tales for many years. Have you ever wondered what unicorns look like, how they behave, or what their horns have been used for? Come along for the ride to find out the truth about unicorns.

It’s a huge, smelly monster that stomps through the woods. It roars in the night as it hunts for food. Stories of Bigfoot are heard all over North America. Is it possible the legends are true?

Learn how a tower crane is operated.

Who walks to the mountains? Who runs across the plains? Move along with migrating animals to find out where they end up when the seasons change.

Not only is Venus the hottest planet in the solar system, it's also one of the brightest, most enchanting objects in the sky. Explore Earth's closest neighbor in this book about Venus.