¿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.

Learn About What Makes A Nation, Including Political Boundaries, Government Systems, Money, And Shared Traditions. Social Studies Based Leveled Readers For Use In Guided Reading And Social Studies Instruction.

No town or city could be built if the builders didn't understand the concepts of perimeter and area. Students will use perimeter and area to build towns and cities and design homes and parks in the book, Pueblos y ciudades (Towns and Cities). At home or in the classroom, this nonfiction book will engage students in learning measurement and geometry, and how to grid patterns, through fun practice problems and diagrams.

Luna deberá prepararse para la Competencia Intercontinental de Patinaje junto con sus amigos del Jam & Roller. Pero, para cumplir sus sueños, tendrá que resolver problemas escolares, sentimientos complicados y algunos malos entendidos... Luna está más confundida que nunca, dividida entre la escuela y la pista, entre Simón y Matteo. ¿Logrará escuchar a su corazón, pasar el año y triunfar en la competencia?

Ideal for young children. Sturdy books that will stand up to wear and tear with full-color illustrations and clear, simple text. Each one has a convenient carry-along handle.