Sara Howell

The rock cycle is a story millions of years in the making. From metamorphic rock to magma and igneous rock to sedimentary rock and back again, rock is constantly forming, wearing down, and forming again. With news about the environment in the forefront, an understanding of how the natural world works is more important than ever, and this book is an ideal companion to any earth science curriculum. This journey to the center of Earth and back will have...

Explains what it means to be an undocumented immigrant, and discusses the reasons for immigrating illegally, the often dangerous journey, immigrants' rights, their role in the economy, immigration law, deportation, and the route to citizenship.

Introduce young readers to the myriad ways in which the assorted members of the animal kingdom communicate. The means of animal communication turn out to be as intriguing and varied as the content that is being communicated, from mating signals and announcements regarding location and food availability to warning alarms and simple tokens of affection and protectiveness. Echolocation, pheromones, bioluminescence, scent marking, tail wagging, nuzzling,...

Todays students have access to many sources of information. The mere number of sources can be daunting when doing research for a school project. This handy guide explains the advantages of print and digital sources and impresses upon readers the importance of using credible sources. Suggestions for taking and organizing notes are featured, too.