Levelled Books

  • Smithsonian Readers 5: Digging Up Dinosaurs

    Smithsonian Readers 5: Digging Up Dinosaurs

    Many people go to museums to see dinosaur fossils. But visitors would never get to see these displays without the work of paleontologists. They locate fossils, dig them up, and send them to a lab to be cleaned and preserved. Museum curators decide how to...

  • Smithsonian Readers 5: Guided by Stars

    Smithsonian Readers 5: Guided by Stars

    Ancient Polynesians were some of the best navigators in history. They sailed double-hulled outrigger canoes across great distances and settled in all the major islands in the Pacific Ocean hundreds of years before Europeans arrived. Learn how they did...

  • Smithsonian Readers 5: Inka Terraces

    Smithsonian Readers 5: Inka Terraces

    The Inka were master farmers, builders, and planners who lived in the Andes Mountains. This challenging environment required the Inka to develop innovative engineering solutions in order to farm, live, and thrive. Today, people still marvel at the...

  • Smithsonian Readers 5: Life in a Cube

    Smithsonian Readers 5: Life in a Cube

    How much life can fit in one cubic foot? Photographer David Liittschwager and zoologist Chris Meyer learned the answer is: quite a lot! Learn how studying life in just one cubic foot can teach us about life on the entire planet. Created in collaboration...

  • Smithsonian Readers 5: Living and Working in Space

    Smithsonian Readers 5: Living and Working in Space

    What is it like to eat, sleep, and work in space? Find out as you read about life in a space station orbiting above Earth! Discover how astronauts function in a challenging environment that includes weightlessness, cramped quarters, and zero privacy...

  • Smithsonian Readers 5: Making Music with Magnets

    Smithsonian Readers 5: Making Music with Magnets

    Magnets are the sparks that bring electric guitars to life! Learn how the guitar has changed over time and how it has impacted music. You'll also learn how electromagnets work and what they're made of. Follow the current to learn more about the world of...

  • Smithsonian Readers 5: Plant Invaders

    Smithsonian Readers 5: Plant Invaders

    Little green aliens have invaded the planet! No, not space invaders from Mars. These are plant invaders. Sure, they look harmless. But invasive species can wreak havoc on ecosystems. Learn how people are working to slow the invasion and restore...

  • Smithsonian Readers 5: Saving a Species

    Smithsonian Readers 5: Saving a Species

    People at Smithsonian's National Zoo and Conservation Biology Institute are working hard to save animal species from extinction. Meet five animals they have saved and learn about the people on a mission to save them. Created in collaboration with the...

  • Smithsonian Readers 5: Saving Migratory Birds

    Smithsonian Readers 5: Saving Migratory Birds

    Migration has huge benefits for birds, but the benefits of migration come at a cost. Learn how ornithologists are using modern technology to help these long-distance travelers. Created in collaboration with the Smithsonian Institution, this...

  • Smithsonian Readers 5: The Art and Science of Skateboarding

    Smithsonian Readers 5: The Art and Science of Skateboarding

    Leap back into history and see the first skateboards in action. Investigate the how and the why behind the modern skateboard's design. Then, watch science in action as we break down the ins and outs of popular skateboard tricks. The skateboarding world...

  • Smithsonian Readers 5: The Science of Glass

    Smithsonian Readers 5: The Science of Glass

    The unique properties of glass make it the perfect material for science. It has been used in laboratories for centuries. Glass containers like test tubes and Petri dishes help scientists do important research. Learn how something as simple as glass has...

  • Smithsonian Readers 5: Thomas Edison: Lighting a Revolution

    Smithsonian Readers 5: Thomas Edison: Lighting a Revolution

    Humans are dependent on electricity. Every day, we flip switches, tap screens, and reap the benefits of this technology. But how did it all start? Thomas Edison created an electric light bulb that changed how people lived. All it takes is one spark of...