Leveled Readers

Did you know that steam can be used to power engines? In fact, steam power drastically changed the manufacturing and transportation industries. Learn about the history of steam power and the engineers who made it...

Learn how scientists channel energy from the sun to power awesome innovations! Created in collaboration with the Smithsonian Institution, this e-book builds students' literacy skills while fostering curiosity,...

Seismologists have an important job. These scientists study earthquakes. Why is it so important to study earthquakes? By studying quakes, seismologists can help protect people from injury and death. Learn about the men...

Imagine a city of islands. There are no cars or streets and people ride boats to get around. This place is Venice, Italy. Built on a lagoon, Venice is in trouble. The city is sinking, and engineers are racing to save it...

Learn how taffy is made with this fun and informative STEAM reader! Created in collaboration with Smithsonian Institution, this STEAM reader builds foundational literacy skills through engaging STEAM content...

  The clouded leopard is a shy and reclusive cat. This relative of lions and tigers is an endangered species. Their shy nature makes studying them difficult for zookeepers and scientists. Discover what makes them so...

Silk is an expensive fabric that is valued for its texture and durability. Learn how silk is harvested from silkworm cocoons with this title that builds students' literacy skills while fostering curiosity,...

The first prosthetic devices consisted of wooden legs and hooks for hands. Today, many prostheses and bionics can do everything a natural limb can do--and more! Learn about inventions from the past that have been...

Streams are an important part of our world. They are the source of drinking water for countless plants and animals. But many streams are eroding. In Maryland, there is a huge effort to restore Muddy Creek. Find out what...

Riding bikes can be a lot of fun, but it is even more fun when it is safe. Read about how people have made cycling safe over the years. There is a lot to learn about this two-wheeled pastime! Created in...

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...

History is everywhere you look. But what happens when there is a disaster, such as a flood or an earthquake? People called conservators visit places hit by disasters. They work to save the items that represent the local...