Los fósiles y las rocas

Three Quarters Of Our Earth Is Blanketed By Water. How This Water Is Used, From Bathing To Irrigating Crops Is Addressed. That Water Travels In A Never-Ending Pattern Called The Water Cycle. Tips On How To Conserve Our Most Important Natural Resource Are Included.

Provides the story of the black woman whose refusal to give up her seat on a bus in Alabama set in motion all the events of the civil rights movements that resulted in the end of the segregated South.

¿Qué es la luz? ¿Cómo se produce? ¿Qué son las ilusiones ópticas? Convertirse en un verdadero investigador es fácil y divertido. En este libro, los niños encontrarán muchas experiencias que lo ayudarán a descubrir espectaculares fenómenos con la luz como protagonista. Podrán inventar lupas, periscopios y ¡hasta una cámara fotográfica de verdad!

Learn the secrets to artful cupcakes, oven-fresh bread, and other delicious baked goods in this delightful nonfiction title. Readers will learn how mathematics helps bakers measure their ingredients to make tasteful treats. Featuring vibrant images and charts, informative text, and fun, intriguing facts, this Spanish-translated nonfiction book will leave children fascinated by all the details that go into baking their favorite treats--like doughnuts and cookies!

Una col·lecció de llibres amb trencaclosques i un joguet mecànic. La granja, el mar, el jardí i la jungla són escenaris que amaguen una pila d'animals; els protagonistes d'aquests llibres estan encuriosits per descobrir-los. Per fer el camí tantes vegades com calgui.