Ondas sonoras y la comunicación (Sound Waves and Communication)

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...

Nature is not always kind. Natural disasters like earthquakes and storms can wipe out cities. Entire cultures and their histories are at risk of being lost. When disaster strikes, some people work to save cultural items. They preserve culture for the future! Created in collaboration with the Smithsonian Institution, this Smithsonian Informational Text builds students' reading skills while engaging their curiosity about STEAM topics through real-world examples. It features a hands-on STEAM challenge that guides students through every step of the engineering design process and is perfect for...

Describes different kinds of artists, the type of work they produce, the tools they use, and the skills and training they need to have.

Like the other Sasek classics, these are facsimile editions of his original books. The brilliant, vibrant illustrations have been meticulously preserved, remaining true to his vision more than forty years later and, where applicable, facts have been updated for the twenty-first century, appearing on a "This is . . . Today" page at the back of each book. The stylish, charming illustrations, coupled with Sasek’s witty, playful narrative, make these books a perfect souvenir that will delight both children and their parents, many of whom will remember them from their own childhood. In This is...