An introduction to Saturn that describes the planet's moons, orbit, rotation, atmosphere, rings, surface, and weather and discusses how scientists study it.
Photographs and text follow the life cycle of the earthworm from hatching to adulthood, and provide information about how the worms mate, burrow, eat, and make soil.
"From a tiny seed to a sure sign of spring, there are many steps in the life cycle of a tulip. Close-up photos and straightforward text help readers discover the process"--Provided by publisher.