Readers learn how this simple machine makes it easier to lift, lower, and open things. They learn the three types of levers: first-class, second-class, and third-class. By the end of the book, readers know the difference between complex and simple machines and how levers are used in everyday life to make work easier.
A basic introduction to the planet Jupiter, its size, composition, and place within our solar system.
Readers learn how this simple machine makes it easier to move things to different levels. They learn how flatter slopes use less effort than steeper slopes. By the end of the book, readers know the difference between complex and simple machines and how inclined planes are used in everyday life to make lifting and lowering objects easier.
Explains where milk comes from and other main ingredients in ice cream; discusses how those ingredients are processed and packaged as ice cream; and how ice cream becomes available to consumers.
Iguanodon was one of the first dinosaurs that had the ability to chew its food. Learn more facts about this unique and very social dinosaur in this interesting book.
Watch as Opal Owl and Stew Rabbit learn to use search engines to find information online, evaluate online resources, and discover the difference between fact and opinion.
Learn along with Opal Owl and Stew Rabbit how to find, check out, and return e-books from a library using an e-reader.
Explains how leather and other materials are used in football production; discusses how materials are put together to make footballs in a factory; and how footballs become available to consumers.
What makes a shadow? Why do some things make shadows and others don't? How do shadows change? This simple, colorful book inspires children to think in a new way about the shadows around them.
A basic introduction to planet Earth, its size, composition, and place within our solar system.
Scoop up some dirt. It's made of many things. What are dirt's ingredients? How is it made? What happens inside it? This simple, colorful book will make kids think differently about the dirt beneath their feet.
Explains how dall sheep live and grow; discusses their migration, its purpose, and its route; and lists threats dall sheep may face on their migration.
Compsognathus was a tiny dinosaur not much bigger than a chicken. Find out how this little animal survived in a world filled with much larger creatures.
Explains how wheat is farmed and processed into flour; discusses how ingredients are mixed and dough is baked into bread at a factory; and how bread becomes available to consumers.
Explains how cotton is grown and harvested to make fabric; discusses how blue jeans fabric is made at a mill and how the fabric is sewn together to make jeans at a factory; and how blue jeans become available to consumers.
Explains how bicycles are made from different materials; discusses how bicycles are assembled in a factory; and how bicycles become available to consumers.
This fun, colorful book describes basic rules for what to do and what not to do to be safe in inclement weather.
This fun, colorful book describes basic rules for what to do and what not to do to be safe on your cell phone and online.
Apatosaurus was one of the biggest animals to ever walk the planet! Find out more about the Apatosaurus's life, what it ate, and what scientists have learned from its fossils.
Allosaurus was one of the biggest meat-eating dinosaurs to ever live. Learn what this huge hunter looked like, ate, and did all day when it roamed the land.
A very simple introduction to the life and accomplishments of noted physicist Albert Einstein.
