At the sight of danger, puffer fish blow up! Their bodies become like balloons. Their plump lips and oversize eyes, usually exaggerated, look more proportionate for a time. The goal is to use size to intimidate. Fascinating content in this title will suck young readers in.

Not all seals measure up to one another. The ringed seal, for example, is four times shorter and more than fifty times lighter than the elephant seal! This elementary title puts on display the common features that make seals of all sizes alike.

Energy makes our world move! Heat, motion, electricity, and food are just a few ways kinetic and potential energy impact our daily lives. In this fact-filled book, students will learn the basics of what energy is and how it works.

What keeps us from floating away? Earth's gravity! This invisible force keeps our feet on the ground and the moon in our sky. This title introduces young students to the awesome power of gravity, on our planet and in the black holes in galaxies far away.

Many big rigs can also be called 18-wheelers. These long transport machines need eighteen big wheels to support a tractor front and trailer back. This title revs young readers up as it unloads information about the parts and purpose of big rigs.

"Simple text and full-color photography introduce beginning readers to crabs. Developed by literacy experts for students in kindergarten through third grade"--

"Simple text and full-color photography introduce beginning readers to stingrays. Developed by literacy experts for students in kindergarten through third grade"--

"Simple text and full-color photography introduce beginning readers to great white sharks. Developed by literacy experts for students in kindergarten through third grade"--

In Zoo, emergent readers join a group of students as they enjoy a trip to the zoo. Vibrant, full-color photos and carefully leveled text engage young readers as they learn about the exotic wildlife the zoo contains. A labeled diagram introduces some of the zoo's most popular residents, while a picture glossary reinforces new vocabulary. Children can learn more about the zoo and its animals using our safe search engine that provides relevant, age-appropriate...

"In Different Cultures, beginning readers will learn to celebrate diversity by appreciating the many culturally influenced behaviors and practices people bring to our society. Vibrant, full-color photos and carefully leveled text engage young readers as they draw inferences about how diversity makes our world stronger and more interesting"--The publisher's web site.