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Space is full of mystery. Scientists think that the planets, stars, and other space objects we see make up just 4 percent of the universe! Scientists studying space have a lot of choices to make. Future space explorers will have many choices to consider too. Now the choices are yours. Would you rather eat pre-packaged space food or grow your own food in space? Would you rather catch a cold in space or have space sickness? Would you rather travel to...
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Athlete's foot is an itchy, flaky, burning, sometimes gooey fungal infection that commonly occurs among athletes, but athletes aren't the only ones affected. This condition can happen to anyone at any age. Readers will learn symptoms of the ailment, as well as what causes it and how it's treated. Information includes the biology of fungi, mold, yeast, and bacteria responsible for athlete's foot and its complications. Treatments discussed include over-the-counter...
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They live in clothes, on hair, on skin, they live under the skin, in guts, in blood. They're parasites, and they're really into us. But what are these small, squirmy, highly successful organisms? How did they evolve to live inside other organisms, to consume, sicken, and even kill them? Readers will enter the engrossing inner world of bugs, worms, and microbes, explore their riveting life cycles, and discover how these tiny creatures topple civilizations...
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Technology is advancing rapidly. Transportation experts think self-driving cars could fill the streets someday soon. Designers are experimenting with different artificial intelligence devices. The choices designers make now will affect our future. What choices would you make in a world of new technology? Would you rather take nanobot vitamins or use a wearable health monitor? Would you rather take to the skies with a jetpack or on a flying motorcycle?...
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From hog hair toothbrushes and cavities packed in linen to rechargeable electric toothbrushes and laser dentistry, dental care has come a long way. Over thousands of years, as the field of dentistry has evolved, research has provided answers to the gross but fascinating science that's behind bad breath and cavities. This comprehensive guide offers readers the chance to learn about the thousands, sometimes millions, of microorganisms that live in people's...
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Kids love gross things, and germs are among the grossest. This engaging volume capitalizes on the grossness factor, while covering the science behind germs, what they are, where they are found, and how they cause diseases. It gives kids the information they need to stay clean and healthy without fearing germs. Readers will learn that most bacteria do not cause diseases, but provide us with food and medicines, and help maintain soil and other ecosystems....
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The world is full of stinky smells, such as sweaty feet, dirty diapers, rotting food, and wet dogs. Some smells are so bad, they can make a person gag or run in the opposite direction. In this book, readers will examine what causes bad smells, why some objects smell more than others, and how smells travel. They will also explore how the nose and brain detect and recognize different smells. With high-interest content and special features that include...
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Scientists estimate that there are 8.7 billion animal species on the planet. There are about 400,000 plant species. New plants and animals are being discovered every day. Scientists who study these species have lots of choices to make and lots to learn. Now the choice is yours. Would you rather be covered in feathers or scales? Would you want to be an oak tree or a giant water lily? Would you choose to talk to animals or understand plants? It's your...
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The human body is amazing. Your blood makes up about 8% of your body weight. On average, your heart will beat more than 3 billion times in your lifetime! Doctors and scientists make choices every day about how to keep our bodies going. But what would you change if you could? Would you choose to have super strength or super speed? Would you rather have no bones or no muscles? It's your turn to pick this or that!
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Did you know that there are animals all around you that you can't see without a microscope? Sometimes it's good you can't see them. As you shed dead skin cells, thousands of dust mites gobble them up. Gross! Tiny water bears are super tough. They can survive in Earth's coldest and hottest places and even in space! Young readers will learn amazing, weird, and sometimes gross facts about a variety of microscopic creatures.
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Explores life during the Middle Ages; describes the features found in castles, including murder holes, gatehouses, and moats; and discusses the numerous smells the inhabitants encountered.
Have you ever dreamed of living in a castle? Imagine a moat filled with poop and an army of invaders holding you under siege. Life in the Middle Ages was no fairy tale! Charge back in time to find out what real life was like in the castles of the Middle Ages.
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