Experimentos para todas las edades

Introduces different kinds of light, the properties of light, and how light can create shadows of different shapes and sizes.

Explains, in simple terms, the reasons for skin color, how it is determined by heredity, and how various environmental factors affect it.

Basado en un enfonque metodológico que responde a los planteamientos PAU. Se centra, en plantear paso a paso numerosos análisis lingüísticos a partir de ejemplos, así como un trabajo exhaustivo sobre el comentario de texto. Incluye cuaderno del S. XIX.

Now in Spanish—Who makes sure my suitcase gets on the right plane? This book is full of fascinating facts about everything from Halloween to braille to fire trucks.