¿Caimán o cocodrilo? (Alligator or Crocodile?)

What’s the difference between a seal and a sea lion? These “second cousins” of the sea look similar, but there are many ways to tell these creatures apart. From ear shape to the noises they make to communicate, seals and sea lions are amazing creatures with both shared features and many truly unique attributes. They both share an ocean habitat, but when readers take a closer look, it’s easy to discover how they each fight off predators, mate, and raise their young in different ways. Captivating full-color photographs help to bring these marvelous mammals to vivid life.

La realidad está llena de números. Mucho más de lo que crees. Hay un Sol y una Luna. Pero tú tienes dos ojos y dos pies. Un triángulo tiene tres lados y un triciclo tres ruedas. ¿Quieres saber más?

Some people are afraid of mice, but these tiny critters are full of interesting facts. Through both English and standard Latin-American Spanish, learn how little mice are taken care of and how some of these itty bitty animals are even kept as pets or used to run tests. From tiny pink pups to wild mice invading your home, these animals will help readers learn definitions and early concepts with the use of full-color pictures and a great picture glossary. Strong picture-text correlation aids in comprehension Reading level supports beginning readers Picture glossary helps develop vocabulary...

Discusses the physical characteristics of great white sharks that combine to make them such able predators.

When rocks change because of environmental conditions, the new rocks are called metamorphic rocks. A rock's chemical or physical makeup may change because of conditions such as temperature, stress, or pressure. Your readers will learn fascinating facts including where metamorphic rocks are most commonly found, the different types of metamorphism, and how metamorphic rocks are identified. Full-color photographs depict these rocks in nature. A helpful graphic organizer shows how these fascinating rocks form.