La fuerza y el movimiento (Forces and Motion)

Understanding light and color might seem impossible, but if readers already know the colors of the rainbow, they're part of the way there. Including the light spectrum, wavelengths, and other key concepts, this book tackles light and color for those falling behind in class because of their reading skills. The main text is written with these struggling readers in mind, accompanied by full-color photographs and diagrams to aid understanding. An extended glossary introduces and explains all the vocabulary readers need to continue learning about light and color.

"Lady Isabel Pelham y Gerard Faulkner, marqués de Grayson, son la pareja más escandalosa de todo Londres. Tienen en común una lujuria desmedida, un gran ingenio, una provocativa reputación en entredicho y, lo más importante, ninguna intención de enamorarse el uno del otro, algo con lo que tirarían por la borda su matrimonio de conveniencia. Por nada del mundo romperían esa farsa ... hasta que el destino aparta a Gerard del lado de Isabel. Cuatro años más tarde, el marqués de Grayson regresa a casa. Isabel se encuentra con que el pícaro joven se ha convertido en un hombre poderoso...

Winning the American Revolution was just the first step. After defeating Great Britain, the American colonies were united in name only. How would this independent nation be governed? During the summer of 1787, representatives went to Philadelphia to solve the problem. The result, the U.S. Constitution, created a new government, establishing the foundations of a free nation and setting a new course for history.

Using helpful charts, graphs, informational text in conjunction with vivid images and intriguing facts, this engaging, Spanish-translated title allows early elementary readers to explore the ecosystem, plants, and animals of the deserts around the world.

Expanding on our popular Let’s Explore Science series, this book focuses on the scientific method. The scientific method is a step-by-step process for solving science problems. Scientists use it every day. Explaining each of the five parts; observing and asking questions, researching your topic, forming a hypothesis and testing it, designing and conducting an experiment, and analyzing and drawing conclusions from your result are all mapped out in detail. Learn how this straightforward topic can sometimes be a little trickier than it seems! This book will allow students to generate and...