Télécharger le livre :  Electric Vehicles
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Did you know the first battery-powered vehicle was created in the 1830s? People who attended the 1892 World's Fair in Chicago could see one. And in 1894, you could buy an "Electrobat" and travel 25 miles on a single charge! Since then, EVs have surged in popularity and...

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Parution : 2018-10-01
Collection : Smithsonian: Informational Text
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Télécharger le livre :  Saving Culture from Disaster
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Nature is not always kind. Natural disasters like earthquakes and storms can wipe out cities. Entire cultures and their histories are at risk of being lost. When disaster strikes, some people work to save cultural items. They preserve culture for the future! Created in...

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Parution : 2018-07-02
Collection : Smithsonian: Informational Text
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Télécharger le livre :  The Wright Brothers
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The Wright brothers wanted to build a flying machine.The path to achieve their dream was filled with many obstacles. Countless hours would be spent studying and testing their plans. But their hard work paid off, and today they are known as the "forefathers of flight."...

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Parution : 2018-07-02
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Télécharger le livre :  Mapping the Milky Way
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When it comes to mapping the Milky Way, scientists know one thing for sure. They know that there is still a lot that they do not know! Discover how they study the Milky Way, and learn about the galaxy that we call home. Created in collaboration with the Smithsonian...

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Parution : 2018-07-02
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Télécharger le livre :  From Grass to Bridge
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Inka rulers led a huge empire with grand palaces. They had incredible riches. Artists made statues out of gold and silver. TheInka also made masterpieces out of grass. Their grass bridges crossed deep canyons. These engineering marvels let soldiers and messengers travel...

Editeur : Teacher Created Materials
Parution : 2018-07-02
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Télécharger le livre :  Restoring Muddy Creek
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Muddy Creek in Edgewater, Maryland is the site of a major makeover. The land around the stream has worn down. Find out what causedMuddy Creek to erode, and the many steps involved in saving it. Created in collaboration with the Smithsonian Institution, this Smithsonian...

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Parution : 2018-07-02
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Télécharger le livre :  Botanical Illustration
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Imagine a career where you get paid to draw all day. That's what botanical illustrators do! Get inside the mind of a botanical illustrator, and learn how their intricate drawings of plants help science. Created in collaboration with the Smithsonian Institution, this...

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Parution : 2018-07-02
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Télécharger le livre :  Making a Mummy
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What happens after death? That was a big question for ancient Egyptians. They believed that a person needed his or her body in death as much as in life. So they did all they could to preserve and protect the body. For them, preparing for life after death was an...

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Parution : 2018-07-02
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Télécharger le livre :  Navigating at Sea
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Navigation instruments have changed over time. Lodestones, sunstones, and sextants helped early navigators find their way. Modern technology makes navigation more precise than it has ever been. But the roots of navigation still remain. Created in collaboration with the...

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Parution : 2018-07-02
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Télécharger le livre :  Predicting Earthquakes
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Earthquakes can leave people and property in bad shape. At times, they can be deadly. Find out about the science of studying earthquakes and the men and women who track the movements of the ground below us. Created in collaboration with the Smithsonian Institution, this...

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Télécharger le livre :  Blue Crab Comeback
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Many people depend on blue crabs from the Chesapeake Bay for their jobs. But overfishing and changes in the blue crabs' habitats have reduced their numbers. Learn how scientists have stepped in to study these blue beauties so that they can keep a healthy crab...

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Télécharger le livre :  Helping People See
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Over the years, people have looked for ways to improve our imperfect sight. This has led us to the world of optics, which is the study of light and how it travels. What are some of these innovations that have changed how we see the world, and how do they work? Find the...

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Parution : 2018-07-02
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Télécharger le livre :  Taking Photos from Space
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Landsat satellites orbit the earth to get images. Learn how these images are made using heat. Then, find out how these cutting-edge satellites are helping save the planet! Created in collaboration with the Smithsonian Institution, this Smithsonian Informational Text...

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Télécharger le livre :  Raising Clouded Leopards
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You've probably heard of lions and tigers. Perhaps you've seen them at the zoo. But have you heard of the clouded leopard? This shy member of the cat family is an endangered species. Their shyness makes studying them a challenge for zookeepers and scientists. Find out...

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Parution : 2018-07-02
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Télécharger le livre :  Amphibian Rescue
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Amphibians can be found all over the world. There are more than 7,500 kinds of amphibians living in streams, rainforests, deserts, and everywhere in between. Many of them are in danger due to a deadly fungus, but help is on the way! Created in collaboration with the...

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Parution : 2018-07-02
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Télécharger le livre :  Underwater Training
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Did you know that swimming pools are used to train astronauts? Athletes use swimming pools to train when they're injured, and doctors use them to help patients feel better. Learn how swimming pools and aquatic therapy help all kinds of people! Created in collaboration...

Editeur : Teacher Created Materials
Parution : 2018-06-01
Collection : Smithsonian: Informational Text
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