Böcker av Kathleen Weidner Zoehfeld

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!

The perfect book for dinosaur lovers-travel back hundreds of millions of years, stopping in frozen ice ages, lush prehistoric rainforests, and ancient oceans along the way.

National Geographic Primary Readers is a high-interest series of beginning reading books that have been developed in consultation with education experts. The books pair magnificent National Geographic photographs with lively text by skilled children's book authors across four reading levels.

National Geographic Primary Readers is a high-interest series of beginning reading books that have been developed in consultation with education experts. The books pair magnificent National Geographic photographs with lively text by skilled children's book authors across four reading levels.

Can you make an ice cube disappear? Put it on a hot sidewalk. It melts into water and then vanishes! The ice cube changes from solid to liquid to gas. This Level 2 Let's-Read-and-Find-Out picture book is a fascinating exploration of the three states of matter.Now rebranded with a new cover look, this classic picture book features rich vocabulary and uses simple, fun diagrams to explain the difference between solids, liquids and gases. This book also includes a find out more section with experiments designed to encourage further exploration and introduce record keeping. Both text and artwork were vetted for accuracy by Dr. Leonard Fine, formerly of Columbia University, and Dr. Karin Block of the Department of Earth and Atmospheric Sciences at the City College of New York.This is a Level 2 Let's-Read-and-Find-Out, which means the book explores more challenging concepts perfect for children in the primary grades and supports the Common Core Learning Standards and Next Generation Science Standards. Let's-Read-and-Find-Out is the winner of the American Association for the Advancement of Science/Subaru Science Books & Films Prize for Outstanding Science Series.

When the pharoahs of Egypt died, they were mummified and buried in pyramids and tombs with all their riches. But as centuries passed, the tombs were looted and the pharoahs' gold stolen. Then Howard Carter found the greatest Egyptian treasure trove of all—the tomb of King Tut's mummy! But did the amazing treasure come with a deadly curse?