Day Sky examines how the time of day and placement of the sun, moon, and clouds impact the look of the sky. Photographs help readers see that the sun changes the colors of the sky and can create shadows.
Science fiction stories are about things that seem impossible, but might be possible one day. Explore aliens, time travel, and more before reading "The City" and seeing how the future might not be a great place to live.
What are UFOs? Are they real? What do they look like? Have aliens visited Earth? Explore these questions and read "The Valley of the Zombies," a thrilling story about aliens invading Earth.
Millions of years ago, a giant meteorite killed all of the dinosaurs. Find out how! Will humans all be killed the same way? Find out what we can do. Is there life on the planet Mars? Scientists think maybe the answer is yes. Find out why. Then read a scary story about what might happen, Doom From Space.
Is our planet Earth the only place in the universe where there is life? Or could there be life on other planets? If so, where will we find it? On other planets? Mars? What do you need for life? How did life start? Did life on Earth start in space? Find out how weird life on Earth can be.Then read a great story about searching for life on alien planets: The Search for Life. Sometimes things just aren't as simple as they seem!
Buzz and his friend Miranda are thrilled to meet the stars of their favorite television program "Star Searchers," but soon learn that their heroes are just ordinary people as they join forces with the actors to battle aliens from the planet Xycon.
This book takes a scientific look at telescopes and the exploration that uses this technology. Reading Essentials in Science.
Scientists have discovered that stars are not equal. They vary in size and color. Variable stars change in brightness over the course of hours, days, weeks, or years. Reading Essentials in Science.
This book is an overview of the solar system, which consists of the Sun, the nine planets and their moons, comets, asteroids, and meteoroids. Reading Essentials in Science.
This book explains how the Sun is very important to life on Earth, as it provides energy for most food chains, plays a role in the air and water cycles, and is at the heart of several sources of electricity. Reading Essentials in Science.
This book explains what scientists have discovered about the Moon. Reading Essentials in Science.
With every question that is answered about the universe, a dozen more are raised. Scientists are creating better telescopes and information-gathering equipment to continue to unlock ever-deeper mysteries of space. Reading Essentials in Science.
Scientists have discovered that stars are not equal. They vary in size and color. Variable stars change in brightness over the course of hours, days, weeks, or years. Reading Essentials in Science.
This book explores humankind's journey into space, from the first telescopes to the International Space Station. Reading Essentials in Science.
This book explains how the earth looks from space, how it travels through space, and why we have seasons. Reading Essentials in Science.
This book takes a scientific look at extraterrestrial and if they exist here on Earth. Reading Essentials in Science.