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Kids often play with magnets, yet they don't learn how these playthings work for many years. Practical knowledge from their play can help them learn more about magnetism, and so can this book. Specially written for those with reading challenges or readers looking for a review, the main text covers important vocabulary, magnetic fields, and a discussion of why metals and magnets come together. Diagrams and succinct fact boxes offer additional ways to learn each concept and explain some ideas in greater detail.

There are many kinds of friends including invisible ones, family members, pets, pen pals you have never met, and best friends. This book celebrates the special bond in all its diversity.

The sun is responsible for all life on Earth, but what exactly is it? Our star is an amazing force that can be as dangerous as it is important. From solar flares to the threat of blowing up altogether, the sun is one of the most interesting things in our solar system. Readers take a trip to the sun to see how it works and exactly what it is made of. Theyll learn about the life cycle of a star and see just how long we have until we have to find a new planet to call home. Dont worry, theyll be happy to learn that (hopefully) we have millions of years left!

María Sklodovska, conocida años más tarde como Marie Curie, nació en Varsovia en el seno de una familia de escasos medios. Mientras su infancia transcurrió en la Polonia ocupada por los rusos, de joven logró viajar a París para estudiar física y matemáticas, y allí conoció al físico Pierre Curie. Comienza entonces, en un pequeño cobertizo, una de las grandes aventuras científicas de todos los tiempos. Gracias al esfuerzo, la perseverancia y el compromiso con la ciencia, descubrirá el radio, que posee propiedades terribles, pero que, sabiamente dirigido, puede ayudar a curar el...