En esta serie se explican las formas más importantes de energía alternativa que se usan actualmente, en este volumen conocerás todo acerca de la energía del Sol.
La ciencia nos ayuda a entender el mundo que nos rodea, descubre el mundo natural con el tema de la energía.
En el libro se explica qué es la biodiversidad y cómo puede ayudar a conservar las especies de plantas y animales de los diferentes ecosistemas.
En el libro se explica cómo podemos usar los inventos para resolver problemas o divertirnos.
This book provides the history of biofuels along with their different uses, their positive and negative characteristics, and how they may impact the future.
En el libro se explica cómo se protege a la población de las inundaciones.
Learn how structures are being built to withstand nature's destructive forces.
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 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.
With the founding of his own newspaper, Garrison used the paper and his association with other abolitionists to advocate for the immediate and complete freeing of all slaves. Through his editorials, he became a symbol of the abolitionist movement by pointing out the hypocrisy of the countrys actions versus the ideals set out by the Declaration of Independence and the Constitution.
Harriet Tubman served as an abolitionist, emancipator of slaves, military spy, and advocate for womens rights. Tubman helped lead more than seventy slaves out of captivity and guide them to freedom along the Underground Railroad. When Civil War broke out, Tubman guided an expedition of Union soldiers on a raid in South Carolina that freed over seven hundred slaves.
John Brown joined the side of free-staters in the conflict in the Kansas Territory, fighting to have Kansas enter the Union as an anti-slavery state. History has shown that his actions and the reactions to them were among the most potent precursors of the outbreak of the Civil War in 1861.
Sojourner Truth lived a truly remarkable life. She had the ear of President Abraham Lincoln and fellow abolitionists Frederick Douglass, Harriet Beecher Stowe, and William Lloyd Garrison. One of the most persuasive and influential activists of her day, Truth was also an effective recruiter of African Americans into the Union army during the Civil War.
Born into slavery, Douglass became an eloquent spokesperson for both blacks and womens rights. During and after the Civil War, Douglass became a confidant of presidents Abraham Lincoln and Andrew Johnson. Douglass also argued for African Americans to be allowed to join the Union army in the fight for their own freedom.
Following the passage of a law that made it a crime to aid in the escape of slaves, Stowe lent her actions and her words to the effort to help slaves and put an end to slavery. She actively aided fugitive slaves and, with the publication of the anti-slavery novel Uncle Toms Cabin, focused the nations consciousness on the inhumanity of slavery.
What are Forests? brings to life the wondrously complex and diverse ecosystems found in forests around the world. Intricate relationships and concepts are explained in a simple way with the help of beautiful color photographs. Children will be fascinated by the earth's many types of forests, the elements that make up a forest ecosystem, the wide range of plant and animal species that live in different forests, and the importance of forests to the rest of the Earth.
The constantly changing ecosystems of salt and freshwater wetlands support an amazing variety of wildlife species. Children will be intrigued by the fascinating animals that depend on wetlands, such as alligators and hippopotamuses, and the plants that grow there. This engaging book investigates swamps, salt marshes, and flood plains, the many plants and animals that live in wetlands, and the threats to these ecosystems and their wildlife.
Biomes are the major communities of plants and animals in our world. Children will love learning about life in everything from the chilly arctic tundra biome to dry, grassy savannahs.
Starting with the sun, food chains link together plants and animals in various ecosystems to help them survive. Kids will be fascinated by these chains and their own links to the natural world.
From whales and deer to butterflies and eels, animals migrate to breed, feed, stay warm, find water, and even sleep! Animals follow paths passed on for generations ensuring the survival of their species. Discover the amazing treks of the Arctic tern, the salmon, and the Canada goose.
