¿Foca o león marino? (Seal or Sea Lion?)

If a person were ever face-to-face with a huge, hungry animal with sharp teeth, they probably wouldn’t care exactly what that animal was! But from a safe location, can we tell whether it was a crocodile or alligator that wanted to take a bite? By examining their jaw structure, teeth, and other physical features, we can easily tell these two animals apart! Graphic organizers and amazing images highlight each animal’s habitat and other small differences between the two fearsome creatures, showing readers just what creature is lurking below the waters.

Life on Earth depends on carbon. In fact, about 18.5 percent of a human body's mass is carbon. How carbon is taking in and given off through animals' breathing, the burning of fossil fuels, and more can be shown in the model known as the carbon cycle. Though this concept can be confusing, all readers have a chance to understand this concept through the text and simple diagrams in this book. Both struggling readers and those looking for review can find the most important components and vocabulary of the carbon cycle in low-level, accessible text.

Dropboy es una serie de libros donde el personaje del título que se convierte en líquido, se involucra en muchas aventuras. Defiende a sus amigos Andy, Takao, Anny y Roa del malvado villano Doc Folly, su secuaz Roig y los murciélagos azules Frit y Frat. Son muchas aventuras llenas de acción con un mensaje único: la amistad por encima de todo. En este libro Dropboy debe salvar a la pandilla ya sí mismo de los ataques de los murciélagos azules Frit y Frat en aventuras llenas de acción.

Más de 150 fotos y textos sencillos para descubrir de dónde salen los alimentos que compramos en las tiendas.

Simple text and photographs introduce the animals of the Arctic, grouped to provide practice in solving easy addition problems.