Rainforests cover approximately 6% of the earth's surface, yet are thought to contain over half of the world's animals and ants! This amazing ecosystem sets the

The activities in this book reinforce basic concepts in the study of the planet Earth, including the composition of Earth, Earth's surface, minerals, rocks, wea

Author David Aguilar uses brilliant photo-realistic illustration and fascinating up-to-date facts straight from the latest astronomy news to bring you a compreh

Space and planets are topics of endless fascination to kids and part of every grade-school curriculum. Yet because of the history-making reassignment of Pluto f