A biography of the Portuguese sea captain who commanded the first expedition that sailed around the world, thus providing the first positive proof that the earth is round.

Describes and illustrates the astronomical aspects of the sky, including constellations, planets, moons, and the astronomer's role in observing these.

Text and illustrations present information on the parts of the body and how they work. Be an eyewitness to the amazing world of your body -- from the incredible framework of the skeleton to the millions of tiny cells that make your body work. Discover how muscles help us move. See the network of nerves inside your head. Find out how X-rays work.

"Our planet is changing, and we need to understand why...Record temperatures, shrinking glaciers, dying coral reefs, and weather extremes are just a few of the ways in which global warming is affecting our precious blue planet. Learn what causes global warming and what needs to be done to correct it. Astonishing photos and detailed facts will help you understand the science of climate change and how it affects every part of Earth's fragile ecosystem."--Back...

The life of the British navigator and explorer whose three famous voyages resulted in the accurate mapping of much of the South Pacific.

Learn about some of the most dangerous animals and see them in action with see-through acetate pages, wheels, tabs, flaps, and windows.

Illustrates how the cottontail rabbit explores its environment, eats, washes, senses danger, rests, and cares for its young. Also describes wild and domestic rabbits around the world.