El Pacto Del Mayflower /

Defines pulleys, explains their functions, and suggests simple experiments to demonstrate how they work.

Explains The Early History Of How The Bill Of Rights Came To Be And How It Is Used To Protect Citizens.

Una guía al mundo prehistórico de los dinosaurios con mapas, ilustraciones, texto, y extensiones gráficas.

Intermediate Readers Explore Concepts Of Evaporation, Condensation, And Water As A Solid, Liquid, Or Gas.

You re growing up and your body is changing. If you re a girl, you re likely experiencing the start of menstruation, your breasts are making themselves known, and you re noticing new hair that you might want to be rid of. If you re a boy, you may be experiencing something strange as you sleep, or sweating a lot and not wanting to shower. This book is a complete guide to the terrible and marvelous world of puberty."

A young girl explains how she and her diverse group of friends are all different from each other. In this first-person nonfiction narrative, vibrant photographs reinforce the idea of a community of students who respect each other and live in harmony. A picture-word glossary is included.