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Some dinosaurs were big. How big? As long as four school buses in a row, as heavy as sixteen elephants.

Some dinosaurs were small. How small? Read and find out

A mountain might be thousands of feet high, but it can still grow taller or shorter each year. This classic picture book explores how mountains are made--including how Mount Everest grew from a flat plain under an ocean to become 29,028 feet tall

Now rebranded with a new cover look, this book features simple activities and fascinating cross-sections of the earth's moving crust that clearly explain plate tectonics. Both text and artwork were vetted for accuracy by an expert in the field.

This is a Level 2 Let's-Read-and-Find-Out Science title, which means the book explores more...

Are you like a cat?

You don't look like a cat. But you and a cat have something in common: You are both alive. People and plants and animals are all alive, but is a doll alive? Or your tricycle? How can you tell? Read and find out what makes something alive, and what all living things need to stay healthy.

The ocean covers almost three-quarters of the Earth, but how deep does it go? Put on your scuba gear and explore the ocean, from its shallowest waters to its deepest, most mysterious parts. As you dive deeper, you'll discover glowing animals, strange creatures that don't need sunlight to survive, and even the largest hunter in the world.

With beautiful illustrations and engaging text, How Deep Is the Ocean? will guide young readers into the deepest parts of the ocean. Featuring a find-out-more section with a water-pressure experiment, a lesson in making a sounding line to...