Mitos Y Leyendas de Roma

Let’s Make a Volcano Spanish Edition. What do you know about a volcano? When a mountain erupts, it explodes! Hot melted rock, called lava, comes out of its top and flows down the side of the mountain! People need to keep away from real volcanoes, but you can have fun making your own volcano!

La vigilancia epidemiológica consiste en la recopilación de información relevante y necesaria sobre algunas condiciones de salud de la población. Su análisis e interpretación proporciona bases para la toma de decisiones. En este libro hablaremos de la vigilancia epidemiológica en salud bucodental, ya que es importante llevarla a cabo para detectar factores de riesgo y diseñar actividades de intervención sanitaria. Tema 1. Demografía y estadística aplicadas a la higiene bucodental Tema 2. Epidemiología básica general y aplicada a la higiene bucodental Tema 3. Economía sanitaria...

Whose Tail is This? Spanish Edition. Animals’ tails are all different shapes and sizes. Some animals have tails that are wide, or strong, or curly. Some are white, and some have stripes. One tail is very beautiful – which one is it?

Ever wonder how a balloon is made? Follow the journey of a balloon from its beginnings as gooey sap in a tree to its completion at a rubber factory. You'll be surprised to discover what a balloon started out as and how it becomes the bright, air-filled decoration that you enjoy today.