Discovery education: how it works

Explores forces and their role in simple and complex machines, at work, and in conjunction with energy, gravity, friction, and magnetism. Includes biographical sketches, color photographs, a glossary, and further resources.

From logs to rubber tires, hot air balloons to space probes, humans have made great strides in developing modes of transportation. Time lines, photographs, and eye-catching digital illustrations make this an engaging, visuals-centric look at history s planes, trains, and automobiles (and boats and bicycles, too).

The human body is a complex machine comprised of many different elements. It can be difficult to grasp how these components work separately yet together. The mystery of the body is unraveled in manageable, but thorough, sections with riveting illustrations..

As the control center of the body, the brain is constantly functioning--even during sleep. Readers will begin to understand the intricacies of this essential organ and a multitude of its functions. Covering a wide scope of topics, this book is sure to capture the interest of young scientists..

From coal to sunlight to trash, it seems as if almost everything can be used to create energy. But which option is the most productive? The least harmful to the environment? The most practical? Readers will be well on their way to developing their own informed opinions about one of today's most complex and debated topics, energy.

From using a can opener to riding a bicycle, all daily activities involve force and motion to some degree. Friction, magnetism, gravity, and more are all addressed in this look into physical science. Infographics and illustrations help to clarify the abstract concepts..

It may be gross and literally make you sick, but the world of bacteria and how it affects human life is fascinating. Looking through the microscope at bacteria themselves and then beyond, this book discusses how the body naturally defends itself against germs as well as the manmade medicines we use to combat them..