GET READY TO DISCOVER SOME AMAZING THINGS ABOUT PLANET EARTH, FROM HOW MANY MILLION YEARS OLD IT IS TO WHAT HAPPENS IN THE CHURNING DEPTHS BENEATH ITS SURFACE.

"Tender and illuminating. A beautiful debut." --Rebecca Stead, Newbery Medal-winning author of When You Reach Me A heartrending and hopeful story about a nonver

" ... Concise explanations and descriptions - easily read and readily understood - of what we know of the chain of events and processes that connect the Sun to

Get ready for hours of fun as you search for giant scorpions in prehistoric swamps, spot spiny stegosaurs on a Jurassic plain and find woolly mammoths stampedin

Earth science is the perfect study for budding young scientists. This curriculum is packed with fun activities and adventures to help your student learn about G