¿Por qué hibernan los animales? (Why Animals Hibernate)

Although Earth is mostly made up of igneous and metamorphic rock, sedimentary rock covers about 75 percent of Earth's land surface. This means it's the most visible kind of rock on Earth. Sedimentary rocks form when sediment accumulates and compacts. Your readers will learn how sedimentary rocks form, the different types of sedimentary rocks, and how people use sedimentary rocks. Fun fact boxes provide readers with additional information. A helpful diagram illustrates how sedimentary rocks form.

The rock cycle has been taking place for millions of years. However, geologists have only known about this phenomenon for about 300 years. Young terrestrial explorers are introduced to different types of rocks, where in the cycle these rocks fit, and where in Earth's layers each step takes place. Fact boxes provide readers with fun additional information. A diagram helps readers make sense of the new information they're learning.

A New York Times best-seller and winner of the ABBY Award features lavish illustrations of Native American settings and shares Chief Seattle's environmental message for "helping preserve what is being lost."

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!

Se trata de un manual con el que los lectores aprenderán los principio básicos para dibujar dinosaurios. El libro describe detalladamente cómo dibujar la cabeza, los ojos, los dientes, las garras, las zarpas y el cuerpo de estas criaturas. Asimismo, el lector encontrará ejemplos de reptiles voladores, depredadores marinos, y dinosaurios carnívoros, herbívoros, gigantes y acorazados. El manual también incluye información curiosa sobre los paisajes y los escenarios más típicos de las distintas especies de estos seres del pasado.

Beginning readers will enjoy learning how to compose numbers 11-19 with this Spanish book. With vibrant images and easy-to-read text, this full-color text uses a real-world example of building and decorating a gingerbread house to teach math concepts. Students will develop their math and reading skills and be introduced to early STEM themes as they count the candy used to decorate a gingerbread house. The Math Talk section includes questions that will increase understanding of basic math and reading concepts and develop students' speaking and listening skills. Learning math is fun and easy...