Estaciones de policia

Discover That There Are Over 8000 Kinds Of Ants Of Different Sizes, How They Live, Where They Live, And How They Reproduce.

Discover how the butterflies colors are made up of, how they eat, and how they become the beautiful insect you see today

¿Por qué se nos tapan los oídos en un elevador? ¿Qué hace que los globos de aire caliente suban al cielo? Descubre todo lo que hace el aire en este maravilloso libro.

Imagine traveling at half the speed of a jet plane without ever leaving the ground! Students will discover the technology that makes such speeds possible, from special tracks and safety precautions to aerodynamically designed trains. What are the limits to the speed of trains? What imposes those limits? Students also will read about the future of passenger train travel, from flying trains to trains that use huge magnets to levitate inches or centimeters off the track. Some trains safely reach speeds of more than 200 mph!

Kids love to play games. Let's explore kids' favorite games from around the world. The Días de Descubrimiento (Discovery Days) series is perfect for young learners in prekindergarten through grade 2. These 16-page books give readers an accessible introduction to nonfiction reading. Color photographs and fun, factual examples will grab the attention of young readers and help strengthen reading comprehension skills.

Narwhals are often called the "unicorns of the sea." But these fascinating creatures are members of the whale family. Read all about narwhals as you practice addition. This Spanish math book combines math and reading skills and uses real-life examples of problem solving to teach subject-area content. The dynamic images, detailed sidebars, practice problems, and math diagrams make learning addition easy and fun. Text features include a table of contents, a glossary, an index, and captions to build vocabulary and increase understanding of math and reading concepts. An in-depth problem-solving...