Viaje al Sol (A Trip to the Sun)

The sun is responsible for all life on Earth, but what exactly is it? Our star is an amazing force that can be as dangerous as it is important. From solar flares to the threat of blowing up altogether, the sun is one of the most interesting things in our solar system. Readers take a trip to the sun to see how it works and exactly what it is made of. They’ll learn about the life cycle of a star and see just how long we have until we have to find a new planet to call home. Don’t worry, they’ll be happy to learn that (hopefully) we have millions of years left!

Rudy can't find his favorite sweater. He's looked everywhere: inside the house, outside, and in the apartments upstairs and downstairs. In the kitchen, in the bathroom, here, there . . . where could it be? This enchanting story has flaps, pages with cutouts, and numbers to count.

La mejor forma de introducir a los lectores jóvenes a la fascinante vida del genio del Renacimiento, Leonardo Da Vinci famoso en su tiempo como pintor, inventor, y filósofo, era también un músico, escultor, e ingeniero para los duques, los papas, y los reyes. Este espléndido libro no solo despertará el interés de los amantes de la ciencia, la historia y la enseñanza con su elocuente tributo a una mente dotada de una energía incontenible, sino que despertará también el potencial que yace en la imaginación de todo el que posee una mente inquieta. Roberto Byrd celebra este genio...

The same fascinating content as Seymour Simon's AMAZING AIRCRAFT, thoughtfully translated into Spanish for use in the classroom or at home. Newly Updated 2012.

Bacteria have a slimy reputation. They're too small to see with the human eye, so it's easy to let them slip past unnoticed. But, bacteria are part of our daily lives. In fact, they affect everything from milk to our moods. Get ready to zoom in on the hidden world of bacteria and explore the many ways that bacteria are being used in the modern world. This nonfiction reader seamlessly integrates the teaching of math and reading, and uses real-world examples to teach multiplication of mixed numbers. Text features include images, a glossary, an index, captions, and a table of contents to build...