Obrero de Construcción

An introduction to what cowboys do, what their day is like, what they wear, what tools they use, and how people can become a cowboy.

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

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.

Estás a punto de embarcarte en una fantástica travesía por la historia de los robots. Los robots han formado parte de nuestras vidas desde hace más tiempo del que quizás imaginas. Su origen es fruto del eterno impulso del ser humano de crear vida artificial para trabajar, medir el tiempo, observar el universo o crear música, entre muchas cosas, y su evolución es continua y cada vez más rápida. A lo largo de este extraordinario viaje conocerás a todos los robots residentes de Robotland, tanto a los habitantes más modernos como a sus antepasados más primitivos o, incluso, a los que...

A 2014 report by the US Department of Education found that 22 percent of students ages twelve to eighteen had experienced bullying. This cogent narrative provides readers with supportive methods to help a friend who is being bullied and to promote a bully-free learning environment at school. Physical, social, psychological, and verbal bullying are examined, as well as cyberbulling. Readers discover the consequences of bullying both as a target and as a bystander. They also consider ways to intervene in a bullying situation, how to seek adult help, and how to be empowered and recover from...

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