What is gravity and how does it work? Could Earth ever stop spinning, and what would happen if it did? How do astronauts prepare for a life with zero gravity? This book introduces readers to scintilla
Nuclear weapons have played an important role in times of war and peace since they were first used in 1945. The use of these weapons has been a topic of strong debate for over 7 years. Readers explore
Biological weapons are extremely dangerous, but militaries around the world are developing various methods to counteract these weapons, including vaccines and ways to clean areas affected by biologica
What’s the difference is between a planet and a moon? What exactly is a planet? How did the moon form and how does it affect Earth? This book explores one of our most familiar nighttime sights, the mo
From the earliest human settlements near present-day Peru to the more recent Inca civilization, readers will be fascinated by the important archaeological finds that have occurred in this region. This
What do humans need to survive? Are these things available on any other planet? Readers explore our solar system and help search for new planets we could inhabit in this high-interest, informative boo
People used to think that Earth was flat, but now we know it isn’t. How did we find out Earth is actually a sphere? How did science help us understand the shape of our planet? Readers will delight in
Are there other galaxies out there? How do we know that they exist? Can we expect an alien invasion? In this fascinating book, readers will learn about black holes, gigantic telescopes, and space expl
From coast to coast, tragedy can strike at any moment. Readers will learn about the locations of disasters from earthquakes to tsunamis and everything in between, all the while discovering how to unde
