Describes how magnets work and includes instructions for making a magnet and a compass.

Cómo los grandes científicos recurrieron a la figura del Demonio para avanzar en sus teorías y revolucionar el mundo. Desde los comienzos de la ciencia, la palabra «demonio» empezó a usarse para designar algo que rompía con nuestra comprensión de la naturaleza. A estos enigmas se les distinguió con el apellido del científico que se topó con ellos y que emprendió un viaje hacia lo desconocido, intentando comprenderlos mejor. El llamado...

"When Lydia has the chance to see a future in which the Montauk Project never existed, she knows that she will sacrifice everything to make that vision of the world a reality"-- Provided by publisher.

Les plus grandes découvertes scientifiques qui n'auraient jamais dû voir le jour ! Saviez-vous qu'une observation astronomique d'un très sérieux père jésuite est à l'origine de la croyance en l'existence d'extraterrestres ? Saviez-vous que, déjà au XVIIe siècle, des médecins ont tenté de réaliser des transfusions sanguines pour soigner des maladies mentales, et cela, en utilisant du sang de chien ou de mouton ? La « mémoire de l'eau...

From the bestselling author of Oh, Yuck! and Oh, Yikes!, with over 1.25 million copies in print, here is an A-Z compendium of hands-on grossness. Featuring 114 interactive experiments and ick-tivities, Oh, Ick! delves into the science behind everything disgusting. Stage an Ooze Olympics to demonstrate viscosity and the nature of slime. Observe how fungi grow by making a Mold Zoo. Embark on an Insect Safari to get to know the creepy crawlies...

This is the engaging true story of kids competing in the high-stakes, high-drama world of international science fairs. Every year the Intel International Science & Engineering Fair brings together 1,500 high schoolers from more than 50 countries to compete for over $4 million dollars in prizes and scholarships. These amazing kids are doing everything from creating bionic prosthetics to conducting groundbreaking stem cell research, from training drug-sniffing...

An "illuminating and important" look at the scientists, engineers, and entrepreneurs who are working to save us from catastrophic climate change (New York Journal of Books). Nikola Tesla was considered a mad scientist by the society of his time for predicting global warming more than a hundred years ago. Today, we need visionaries like him to find sources of alternative energy and solutions to this looming threat. Mad Like Tesla takes an in-depth...

Why does a knuckleball flutter? Why do belly flops hurt so much? Why would a quarterback prefer a deflated football? Here are 54 all-star experiments that demonstrate the scientific principles powering a wide variety of sports and activities-and offer insights that can help you improve your own athletic skills. How does a black belt karate chop her way through a stack of bricks? Use Popsicle sticks to understand why it's possible and learn the role...

Get charged up about energy! With more than 20 fun activities and experiments that will have children ages 8 to 12 enthusiastically engaged with making and using renewable energy, Michael J. Caduto takes a hands-on approach to fighting climate change. Step-by-step instructions for projects range from using the sun to make fires to charging electronic devices by peddling your bicycle. Additional energy case studies encourage kids to think about the...