La ciencia nos ayuda a entender el mundo que nos rodea, descubre el mundo físico en este libro con el tema del ciclo del agua.
En este libro se explica lo que es el sonido, cómo funciona y las características del mismo desde el punto de vista del hombre y de los animales.
En el libro se explica por qué los hombres debemos cuidar la tierra.
Learn how structures are being built to withstand nature's destructive forces.
Have you ever been faced with a bullying situation? Bullying happens to all kinds of people in all kinds of places. If you are ever the victim or a bystander, get help so that you can act in a responsible way. Learn how to deal with tough situations and act accordingly when faced with a bully. This title will allow students to explain events in a text, including what happened and why, based on specific information in the text.
Have you ever faced a challenging situation? Have you or your team lost a game? It can be really disappointing to lose, but stay in control of your emotions and be calm. Recognize what went wrong and refocus your energy. Learn from loss and move on. This title will allow students to ask and answer questions to demonstrate understanding of a text, referring explicitly to the text as the basis for the answers.
En este libro aprenderás la importancia de llevar especies extranjeras a lugares distintos a su ecosistema original y todos los efectos negativos que pueden causar al ambiente.
En el libro se explica cómo cambian física y químicamente los materiales.
La ciencia nos ayuda a entender el mundo que nos rodea, descubre el mundo natural con el tema de cómo viven y crecen las plantas.
En el libro puedes aprender cómo experimentar con la electricidad.
En el libro se explica qué es el método científico y para qué sirve.
Historia de la NASA, sus antecedentes y distintas etapas que han repercutido en el desarrollo de la ciencia y la tecnología, además de traer influencia positiva para la civilización.
Examples are used to illustrate how many laws began as grass-roots initiatives, and how much a law can change from the time it is first suggested to the time it is approved.
Emphasis is placed on how all levels must work together to succeed and examples are presented demonstrating how all levels of government contribute to the lives of every citizen.
The legislative branch of the United States government represents the people and makes the laws which they live by. This book introduces readers to the House of Representatives and Senate, and the main players in both. Whips, committees, and filibusters are also discussed. A comparison to other legislative bodies in state and local governments, as well as in other countries, is also included.
The judicial branch of government consists of the nations courts. This title explores the role of the United States Supreme Court and its role in interpreting the U.S. Constitution, as well as the role of Federal Courts. Justices and judges, and how they are selected for their jobs is also provided. A comparison to other judicial bodies in state governments, as well as in other countries, is also included.
This entertaining and insightful book will show young readers about the chemical compounds that make up the world around them. Colorful illustrations encourage interest in this vital basic science, giving readers knowledge of the periodic table and the importance of chemical compounds in their lives.
This book provides essential information on all aspects of the election process. How is a government elected? is packed with plenty of full-color images to help deliver a fundamental message: that the right to vote is one of the cornerstones of a free and democratic society.
Almost everything around us is a combination of different things. These are mixtures and solutions. Seawater, for example, is a solution of salt and water. The engaging text and vivid illustrations in this book will help readers understand how mixtures and solutions form, and how they apply to everyday life.
This book gives young readers a better understanding of the different states of matter. Through colorful photographs and lively discussions of familiar materials, readers will be drawn in to learn about matters many forms.
Through exciting, familiar examples and engaging illustrations, readers will discover how chemicals react and change. Topics include how chemicals react with one another, chemical changes such as precipitation and oxidation, how catalysts affect chemical reactions, and what everyday events are actually chemical reactions
Young readers will be amazed to learn about the tiny particles that make up everything in the world around them. Colorful illustrations and fun fact boxes will help readers understand how atoms come together to form molecules, the building blocks of everything in the universe.
Did you know that cola is an acid? And your saliva is a base? Young readers will learn about common acids and bases from lemon juice to ammonia. Through vivid examples and exciting illustrations, this book will eagerly explore these important chemical compounds.
