¡Ya comenzó el CYBER con 20% de descuento para TODOS los LIBROS y material didáctico en Tienda y online!El descuento se mostrará al agregar los artículos en el carrito
Visítanos en nuestro local en Av. Luis Pasteur 5515, local 7, Vitacura, 2º piso.Contáctanos al Whattsapp +56992372398
Learn about big cats species that have already gone extinct and how big cats live in the wild.
From snow leopards to tigers, almost all of the world's big cat species are in danger of dying out. These fierce predators live all over the world in many different habitats and play an important role in their local ecosystems. Readers will discover how human activities are harming the cats and what can be done to save them.
This book provides a short selection of experiments that can be performed using electricity.
When were batteries invented?
Italian scientist Alessandro Volta invented the first batteries in 1800.
Inside, you'll find:
* Why some materials hold electricity better than others;
* Experiments, a timeline, photos - and how electricity is created;
* Surprising TRUE facts that will shock and amaze you!
True Books have been upgraded and updated. Information is presented in a thorough yet engaging manner, featuring lively sidebars, a glossary, visual back matter, and an index.
Readers will learn about electricity while performing the short experiments in this book.
Why did ancient Egyptians put oil on the ground while they were building the pyramids?
The oil reduced friction and allowed them to drag huge stone blocks along the ground.
Inside, you'll find:
* How forces such as inertia and friction relate to motion;
* A timeline, photos - and how humans have used the laws of motion to invent things such as roller coasters and space shuttles;
* Surprising TRUE facts that will shock and amaze you!
True Books have been upgraded and updated. Information is presented in a thorough yet engaging manner, featuring lively sidebars, a glossary, visual back matter, and an index.
Genes are the blueprints for all life. When scientists first began altering genes to change the traits of living things, they unlocked an entirely new branch of science: genetics. Readers will get an overview of the science behind genetics and find out how genetics have changed our world. They will also meet some of the biggest innovators in genetics history and find out where the field is heading next.
Learn what is causing gorillas to disappear and what people are doing to save them from extinction.
Which kinds of gorillas are the most endangered?
There are only about 900 mountain gorillas and 300 Cross River gorillas left in the wild.
In the wild, they face few natural enemies. However, human activities are threatening these animals' survival. Readers (Grades 3-5) will learn what life is like for wild gorillas and why these amazing animals are an important part of the natural world.
This king of the canine family is not the kind of pup you'd want take home! Learn about the traits that wolves do and don't share with their canine cousins. Then join a wolf pack and see how this endangered species tracks its prey, searches for a den, and raises its young.
Learn about the history of human-rhino interactions and find out what people are doing to save these animals from extinction.
With their enormous size and distinctive horns, rhinoceroses are immediately recognizable. Unfortunately, threats such as habitat loss, poaching, and natural disasters are causing these incredible animals to disappear from their natural habitats. Readers will find out how rhinos live in the wild and what roles they play in nature.
Learn how people with allergies avoid hidden everyday allergens and get a sneak peak at the new allergies treatments doctors are preparing for the future.
How common are allergies?
Around 8% of all children in the United States suffer from allergic reactions.
Eating peanut butter, petting a friendly dog, or sniffing a colorful flower are perfectly harmless activities for most people. However, for allergy sufferers, these can all be life-threatening experiences. Readers will find out why some people have allergies and others don't, how allergies are diagnosed and treated, and which substances are the most common allergens.
Describes the physical characteristics, habits, and natural environment of the huge plant-eating apatosaurus and discusses theories on why it became extinct.
"A Plant-eating Giant:
Can you picture the world as it was many millions of years ago?
Things looked very different then. The Earth was continually changing.
Separate continents were still forming. There were no humans yet. This was the Mesozoic era, a time also known as the Age of the Dinosaurs.
True Books have been upgraded and updated. Information is presented in a thorough yet engaging manner, featuring lively sidebars, a glossary, visual back matter, and an index. Inside you'll find:
* The largest butterfly in the world;
* Maps, a time line, photos - and a desert with some of the biggest rocks on Earth;
* Surprising, TRUE facts that will shock and amaze you.
Few natural disasters are more frightening, sudden, and deadly than an avalanche.
Huge waves of ice and snow pouring down a steep mountain can cause tremendous amounts of damage. Readers will learn about some of the most devastating avalanches in history and find out how rescue operations are carried out. They will also discover how experts predict avalanches and what people can do to stay out of harm's way during these extreme events.
Bridges are a crucial part of trade and transportation. They allow vehicles and pedestrians alike to cross everything from rushing rivers to rocky ravines. Readers will trace the history of bridges from their invention in ancient times to the construction of today's engineering wonders. They will learn why different bridge shapes are suited to different purposes, how engineers choose which materials to use in bridge construction, and much more.
About 12.5 percent of all deaths in the world are caused by cancer, making it deadlier than AIDS, tuberculosis, and malaria combined.
Readers will discover how this common, yet deadly disease is diagnosed and treated. They will also learn how different kinds of cancer affect the body differently and why some types are deadlier than others.
True Books have been upgraded and updated. Information is presented in a thorough yet engaging manner, featuring lively sidebars, a glossary, visual back matter, and an index. Inside you'll find:
* The name of China's boy emperor;
* A map, a time line, photos - and the reason for building the Great Wall of China;
* Surprising, TRUE facts that will shock and amaze you.
This book briefly examines the geology and environment of deserts, as well as the people and animals who make them their homes.
The BIG TRUTH! The desert weather report. What is the forecast for today?
The average scorpion is about 2.5 inches (6 centimeters) long.
Contents:
Exploring the Desert. What are deserts, and where are they found?
With sand and wind. How does nature make a desert in the first place?
Man-made deserts. How have people and cities changed the deserts of the world?
Home, sweet desert home. How can people possibly live in some of the world's deserts?
Wildlife under the sun. What kinds of plants and animals survive in deserts?
True statistics, Resources, Important words, Index, About the author.
True Books have been upgraded and updated. Information is presented in a thorough yet engaging manner, featuring lively sidebars, a glossary, visual back matter, and an index.
Astronomers have been working for decades to locate and identify all of the planets they can.
There are eight planets in our solar system, and there could be billions more throughout space. Readers will discover what methods these scientists use, how new technology has helped them see further than ever, and why some scientists think that faraway planets could be home to life forms unlike anything on Earth.
In 2014, an outbreak of the deadly Ebola virus in West Africa made headlines around the world.
Because the disease spreads easily and has no known cure, many people were terrified that it would spread throughout the world. Readers (Grades 3-5) will learn how the outbreak began and how Ebola spreads from person to person. They will also explore earlier Ebola outbreaks and find out what scientists and doctors are doing to fight against the illness today.
This book explores how the sun was formed, what it is made of, and how its energy travels to Earth and the other planets of the solar system.
The sun provides us with the light and energy we need to survive.
It also serves as the center of our solar system, with its gravitational pull keeping the planets in orbit. But what exactly is the sun? Readers will explore how the sun was formed, what it is made of, and how its energy travels to Earth and the other planets of the solar system.
Learn about the longest and most unique bridges in the world.
From China's remarkable Danyang-Kunshan Grand Bridge, which spans more than 100 miles, to the amazing Millau Viaduct, which allows drivers to travel almost 900 feet above the ground in southern France, bridges rank among man's most incredible engineering feats. Readers (Grades 3-5) will learn about some of the biggest and most unique bridges in history, from how they were planned and built to how they have stood the test of time.
In order to maintain careful control over the safety and accuracy of their experiments, scientists often work in laboratories. Labs give scientists the space and equipment they need to make their greatest discoveries. Readers will tour some of the world's most incredible laboratories, from the ocean research vessel that can flip from a vertical position to a horizontal one to the massive International Space Station. This well-written book will help readers identify key facts about science topics. The engaging content allows readers to draw connections between historical events and scientific ideas.
Many people believe that careers in science are difficult, dull, and boring. However, this is far from the truth. Readers will discover how science careers can be full of adventure and excitement as they learn about researchers who study the insides of active volcanoes, inventors who build incredible new robots, divers who swim alongside fearsome sharks, and much more. They will also find out how they can begin thrilling science careers of their own. This well-written book will help readers identify key facts about science topics. The engaging content allows readers to draw connections between historical events and scientific ideas.
Most days, you probably don't think too much about the weather. You might wear a coat on a cold day or carry an umbrella when it rains. But weather can be unpredictable. Downpours can flood entire cities, raging winds can knock down buildings, and huge piles of snow can block roads. Readers will find out how scientists study some of the most extreme weather on Earth, from violent tornadoes to deadly hailstorms. They will also learn about some of the most devastating weather events in history. This well-written book will help readers identify key facts about science topics. The engaging content allows readers to draw connections between historical events and scientific ideas.
Discover the basic behavior, physical traits, and life cycle of fishes.
A True Book: Animals series introduces young investigative readers to animal species, their habitats, unique abilities as well as an up-close look at the dangers these animals face today and find out how humans can help keep all animal species from disappearing forever. This series includes an age appropriate introduction to curriculum-relevant subjects and a robust resource section that encourages independent study.
Contents:
What is a Fish?
Where Fishes live?
A Fish's body
Groups of Fishes
Fishes and more fishes
Fishes in our lives
To find out more
Important words
Index
Meet the author
True statistics, Resources, Important words, Index, About the author.
True Books have been upgraded and updated. Information is presented in a thorough yet engaging manner, featuring lively sidebars, a glossary, visual back matter, and an index.
Discover the nature and causes of floods, their impact on society, and ways of defending against them.
A True Book: Earth Science series presents fascinating facts and fun activities that will engage the budding earth scientist, while exploring the fields of geology, meteorology, ecology, and more. This series includes an age appropriate introduction to curriculum-relevant subjects and a robust resource section that encourages independent study.
Series Features
• Superb age-appropriate introduction to curriculum-relevant subjects • Covers all studies, from Animals to Geography to Science • "Words to Know" glossary clarifies subject-specific vocabulary • "Learning More" section encourages independent study • Index makes navigating subject matter easy
True statistics, Resources, Important words, Index, Meet the author.
While many types of flu are easily treated, others can be extremely dangerous.
What happened in the 1900s when the flu spread around the world?
Inside you'll find:
* Why some versions of the flu are more dangerous than others;
* A timeline, photos - and what you can do to avoid catching the flu;
* Surprising TRUE facts that will shock and amaze you!
Influenza, more commonly called the flu, is a contagious virus that targets the nose, throat, and lungs. Readers will discover how the flu is spread and how the body works to fight infection. They will also learn why it is important to protect against the flu using vaccines and why some types of flu deadlier than others.
This book introduces readers to the history and importance of food safety, the bacteria that cause food to be unsafe, safety in the food industry both in the United States and around the world, and what to do to keep food safe to eat.
This book briefly describes the science behind friction, and what its effects are.
Need a good way to introduce physical science topics to your children? This series of books will not only do just that, but also spark some curiosity to further learning. Your children learn about inventions, inventors, and how different forces (like friction or gravity) are used in everyday life. Plenty of fun photographs and facts are packed into these small books.