Charles Hofer
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"An irrigation system is an arrangement of canals and conduits that bring water to crops that need it. Even the earliest civilizations found ways to irrigate their crops with water from nearby rivers. In time, simple canals gave way to more advanced technology, leading to today's massive irrigation systems. In this book, readers will explore essential STEM topics while learning the fascinating history behind irrigation systems, including their different...
2) Race cars
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Car racing is one of the fastest-growing sports in the United States. This book will give kids an inside-and-out look at how race cars are built for speed.
3) Airplanes
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Traces the history of airplanes from the time they were first invented to some examples of today's planes.
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At their peak, the ancient Maya lived in one of the most advanced civilizations in the world. Their calendar system, celestial observations, and architecture give us clues to the greatness of their technology. This book introduces readers to the many unique technological devices and breakthroughs created by the ancient Maya. Readers will learn about the historical context of Maya technology through primary sources, such as artifacts and architectural...
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When thinking about natural disasters, floods probably aren't the first thing that come to mind. However, a sudden rise in water level can cause great destruction and even death. This book explores where and why floods occur and features photographs of the incredible damage they can cause. Readers will learn how people survived some of the worst floods in recent history as well as new prediction methods to help avoid the damage and destruction floods...
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The United States of America was born of cooperation and conflict. On one side were the Native Americans, represented by dozens of different tribes from coast to coast. On the other were the European settlers, who flocked to the New World seeking freedom or fortune. What began as a sometimes friendly and cooperative relationship soon led to bitter and bloody conflicts as the young and fragile nation sought its identity. This book explores the complex...
8) Thanksgiving
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"Thanksgiving is the day people give thanks for the blessings in their lives. It's also a time to gather with family and friends to enjoy traditional foods like turkey, stuffing, and pumpkin pie. Celebrated on the fourth Thursday in November, this American holiday has been around since the 1620s. From the very first celebration to today's parades, food, and football, learn about this festive holiday's traditions and history." --
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"It's a battle between two terrifying, tooth-filled predators! The great white shark is today's largest predatory fish. But millions of years ago, megalodon ruled the seas as the ocean's deadliest hunter. Learn what makes these similar monsters of the seaso deadly. Then decide which one would triumph if they battled in the ocean's depths"--
11) Saturn
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Describes the characteristics of this planet known as a gaseous giant, discoveries made by telescopes and space probes, and how Saturn has played a role in the mythologies of many different cultures and civilizations.
12) New Year
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"People all over the world celebrate the New Year. It's a holiday that celebrates new beginnings and the hope for a prosperous year ahead. People love gathering at parties to usher in the new year with fireworks, music, New Year's resolutions, and more. Learn about the many ways people around the world count down the final moments of the old year, and how they celebrate the birth of a brand-new year." --
13) Veterans Day
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"Veterans Day is a holiday celebrated every November 11 in the United States. It honors military veterans who served in the U.S. Armed Forces. People often participate in a moment of silence to honor veterans and their service to the country. People also decorate with American flags and watch parades honoring the Armed Forces. Learn the ways people celebrate this special day and similar holidays in countries around the world." --
14) Halloween
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"Halloween is a holiday that features all things creepy and scary! Also known as All Hallows' Eve, people enjoy decorating their homes with jack-o'-lanterns, spider webs, skeletons, and other creepy items. Many kids love to dress up in costumes and go trick-or-treating for candy. Some people enjoy watching scary movies. Discover how this holiday began and the spooky ways people have fun with it." --
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"It's a clash between two horned beasts! The rhinoceros is one of the largest animals living on land today. But millions of years ago, the triceratops was one of the biggest and most powerful beasts of its time. Learn what makes these similar creatures so impressive. Then decide which tanklike beast would achieve victory in a fight"--
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"It's a battle between two fearsome, fanged beasts! Today, the Siberian tiger holds the record as the world's biggest cat. But in prehistoric times, the saber-tooth cat held that title as it prowled the land for prey. Learn what makes these similar animals such effective hunters. Then decide which fierce fighter would best the other in battle"--
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"It's a fight between two fierce armored reptiles! Today's crocodiles are powerful, sneaky hunters. But millions of years ago, the deinosuchus was one of the biggest predators of its time. Learn what makes these similar beasts so dangerous. Then decide which of the fearsome foes would emerge victorious in a beastly brawl"--
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Go for a hike in the woods and you're sure to see a wide range of plants. Many colorful flowers and fruits seem perfectly harmless. But, don't be fooled by these beautiful plants. Some plants eat bugs, and some are poisonous, deadly enough to sicken or even kill a person! Get ready to explore some of the world's quietest killers.
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The world is crawling with all sorts of bugs and other little critters. But don't be fooled by their small size. Many of these creatures are quite dangerous. Some are armed with powerful poison that can kill a person. Others carry and spread deadly diseases. Brace yourself to discover some of the world's tiniest killers.
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The world is full of furry, cuddly-looking animals. They often seem harmless at first glance. But don't try to snuggle with these fuzzy creatures. Many of them can be very dangerous. Some have razor-sharp claws and teeth. Others are incredibly strong. Still others are poisonous or carry deadly diseases. Prepare to meet some of the world's cuddliest killers.