Productos

Before a doctor can treat a patient, she needs to know what is causing the problem. However, it is not always easy to tell what kind of sickness is affecting someone. Readers will find out how animals can be put to work diagnosing some of the trickiest diseases, from dogs who sniff out cancer to mice who can detect bird flu. They will also learn how scientists are working to reproduce these animals" abilities with advanced electronic devices.

Many of the world's most dangerous illnesses are caused by tiny living things called bacteria.

Bacterial sicknesses once killed countless people. However, thanks to drugs called antibiotics, many types of deadly bacteria are no longer a major problem. Readers  will find out how scientists first began studying bacteria, how they created the earliest antibiotics, and how bacteria and antibiotics could change in the future.

Learn how people are trying to protect endangered bears and what the future could hold for these remarkable animals.

From the snowy white polar bears of the Arctic to the black bears that roam through parts of North America, bears have long been a common sight in many parts of the world. However, many species are becoming less common as they face threats such as illegal hunting and climate change. Readers will find out how bears live and what impact they have on the environment.

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 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.

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.

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:

1. Exploring the Desert.  What are deserts, and where are they found?
2. With sand and wind.  How does nature make a desert in the first place?
3. Man-made deserts.  How have people and cities changed the deserts of the world?
4. Home, sweet desert home.  How can people possibly live in some of the world's deserts?
5. 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.

A True Book-Physical Science Whether you're an aspiring inventor or an everyday science buff, you've probably created your own experiments to uncover the truth about the forces of physical science. Now you can delve deeper into the topics of electricity, motion, gravity, and more with these titles that are perfect for the budding scientist in you.

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.

"Learn all about the oldest and newest places on Earth and find out how the world has changed over time."

What is the oldest animal species still living today?

Fossils show that horseshoe crabs have existed for approximately 450 million years.

Inside you'll find:

* How Earth has gone through natural changes over time;

* A timeline, photos - and how humans have helped shape Earth's progress;

* Surprising TRUE facts that will shock and amaze you.

Did you know?

Nishinoshima Island First developed during a volcanic eruption in 2013.

Trees have grown over the ancient Ta Prohm temple in Cambodia.

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.

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.

This book describes what gravity is, the history of its study, and its effects.

Why was Galileo put in jail for his writings about gravity?

The Pope was angered by Galileo’s work proving that Earth was not the center of the universe.

inside you’ll find:

* Why gravity keeps us from floating into outer space;

* A timeline, photos - and how gravity works on other planets;

* Surprising TRUE facts that will shock and amaze you!

Explore the events of Hurricane Katrina and the devastation it caused in New Orleans, the global efforts to help the victims, and the rebuilding efforts.

How much of New Orleans was underwater after Hurricane Katrina hit?

The hurricane flooded at least two thirds of the city, leaving hundreds of thousands of people homeless.

How did the people of New Orleans tried to prepare for the storm of a lifeltime?

Table of Contents

1. Hurricane coming!
   
2. Devastation.  Where did Katrina cause the most damage?
   
3. The situation at the Superdome
   
4. Rebuilding New Orleans

True statistics; resources; Important words and more...

When Kate Middleton married Prince William of the United Kingdom in 2011, she was immediately thrust into the worldwide spotlight. Readers will learn all about Middleton’s life, from what her childhood was like, to how she met Prince William, to how her world changed when she became part of the British royal family.

Why did a million people line the streets of London, England, on April 29, 2011?

They were hoping to catch a glimpse of Kate Middleton and Prince William, who were on their way to be married in a Royal Wedding.

Inside, you'll find:

• What Kate's early life was like and how she met Prince William;
• A timeline, photos - and what role Kate plays as the Duchess of Cambridge;
• Surprising TRUE facts that will shock and amaze you!

At the age of 11, Malala Yousafzai began writing a blog in support of education for girls in Pakistan. As the blog gained popularity and Yousafzai became famous, she faced opposition from religious extremists who were against women's right to education.

Readers will discover how Yousafzai stood her ground against terrorist activists, even after being shot for her beliefs. They will also learn how Yousafzai achieved international recognition and how she continues to support the rights of women in her home country.

How did Malala Yousafzai fight to protect women's right to education in Pakistan?

Even under threats of violence, she posted blog entries about the unfair situation in her home country.

Inside you'll find:

* What life is like for young women in Pakistan;

* A timeline, photos - and how Malala Yousafzai continues to fight against oppression;

* Surprising TRUE facts that will shock and amaze you!

Sometimes the most difficult skills to learn are the basic ones that help us stay healthy and safe. With this new True Book series, readers will discover how to think critically about some of the everyday decisions they will face throughout their lives, from dealing with bullies to choosing a healthy diet. Key Features: Compelling questions encourage readers to think about how these principles apply to their lives Glossaries provide definitions of important vocabulary words Exciting photos complement the text and hook the reader's interest.

Readers will find out about the many different types of cyberbullying, from posting unflattering photos online to sending threatening text messages. They will also learn why it is important to avoid these activities and what they can do if they are victims of cyberbullying.

Maps have guided us from place to place since ancient times, but they can do more than just show the way.

Today's maps can provide a wide range of additional information, from population density to land elevation. Readers will learn how to identify and use many different types of maps, as well as how mapmaking technology has changed and improved throughout history.

A True Book: Could Self-Driving cars improve safety on the road? Experts predictions. Timeline, photos, true facts that will shock and amaze you!

Discover the events of September 11th, 2001.

A True Book: Natural Disasters series investigates the events leading up to a disaster, explores the causes, and ponders how the events changed, or could alter, history.

This series includes an age appropriate introduction to curriculum-relevant subjects and a robust resource section that encourages independent study.

Upgraded and updated, True Books present information in a thorough yet engaging manner, featuring lively sidebars, a glossary, visual back matter, and an index.