A simple introduction to up and down movement.

How much do you really know about astronauts? Which animals beat humans into space? Are there any people living in space? Can tourists visit space? Each page in this series presents a large full-color illustration and simple paragraph containing fun facts about gear, historical figures, and day-to-day life that encourage kids to explore this high-interest topic in more detail. Readers can dip in at random or read from cover to cover. New vocabulary...

"Gravity is all around us. Learn how it is used in art, technology, and engineering. Five easy-to-read chapters explain the science behind gravity, as well as its real-world applications." -- Publisher's website.