Los estados de la materia — Los gases

Did you know that baby butterflies look like worms with legs? Caterpillars turn into butterflies inside a shell. Discover more about these flying insects in Butterflies, part of the Life Cycles series of EYEDISCOVER books.

Did you know that liquids take the shape of their containers? If liquids get hot, they can become gases. Discover more interesting facts in Liquids, part of the States of Matter series of EYEDISCOVER books.

How do you truly engage students in learning history? When students make personal connections to the subject, they're much more motivated to learn. This Spanish book provides firsthand accounts of history that give personal insights into historical events. Introduce students to California's early settlers including John Bidwell, Jim Beckwourth, Jedediah Smith, Sarah Royce, Charley Parkhurst, Kit Carson, the Donner party, and more. With a visually appealing layout, this book features captivating text, fun facts, sidebars, and time lines that help students grasp the essential concepts they need ...

Rafael Alberti fue uno de los poetas españoles más grandes del siglo xx. Y también un extraordinario poeta para niños, a los que atraía por su personalidad y su amable aspecto de abuelo y mago. Sus poesías, muchas de ellas recogidas en esta espléndida ant

Looks at the life of Betsy Ross from her Quaker childhood to her days as an independent businesswoman. Also examines the legend of the Betsy Ross flag. Written in graphic-novel format.

Invierno, primavera, verano y otoño—las estaciones son uno de los ciclos más familiares de la naturaleza. Pero, ¿por qué cambia el clima? Aprenda por qué los patrones climáticos cambian a lo largo de las estaciones. Winter, spring, summer, and fall—the seasons are one of nature's most familiar cycles. But why does the weather change? Learn why weather patterns change over the seasons.