Aves

Explains the basic science of flight, the problems of getting vehicles into the air, different types of engines, and aircraft design, and includes instructions for making aircraft models.

Students will develop their geometry skills as they study the geometric shapes of modern art and read about the innovative artists who turned the art world upside down. This Spanish book seamlessly integrates the teaching of math and reading, and uses real-world examples to teach geometry concepts. Text features include a glossary, an index, captions, and a table of contents to increase students' vocabulary and reading comprehension skills as they interact with the text. The rigorous practice problems, math charts and diagrams, and sidebars provide many opportunities for students to practice...

Simple illustrations and text introduce young readers to various types of seeds; and includes instructions for a related activity. Presented in Spanish.

An introduction to ostriches, including their size, diet, and everyday behavior and highlighting differences between those in the wild and those living in zoos.