Seymour Simon

Named after the Roman god of war, Mars has fascinated people for thousands of years. Did you know that... A Martian year is 687 Earth days, almost twice as long as a year on Earth. Mars's biggest valley, Valles Marineris, is four times as deep as the Grand Canyon! Scientists think that Mars, now rocky and barren, once had an ocean, rivers, and a thicker atmosphere. Explore the wonders of Mars, the Red Planet, with science writer Seymour Simon in this...

Takes readers on an interplanetary tour from the sun to the ever-mysterious Mars, and then, thanks to the Voyager missions, to the planets beyond.

Presents simple activities and experiments that demonstrate buoyancy by observing why some things sink and others float in water.

Discusses the formation, movement, and different types of glaciers and icebergs and describes their effect on the world around them.

Celebrates the fiftieth anniversary of the Apollo 11 mission with the story of the space race between the United States and the Soviet Union, including insights about what makes the Moon so fascinating to humankind.

From their ancient relatives--woolly mammoths and mastodons--to their versatile trunks and strong ivory tusks, elephants are some of the most fascinating animals on Earth. Join science writer Seymour Simon as he investigates the many characteristics and behaviors of the largest land animals in the world.

Readers will learn all about insects life stages, senses, bodies, and the many different kinds, including beetles, ladybugs, bees, butterflies, and more.

Discusses the science of water, including its chemical makeup, its importance to life, its role in climate, and how the cycle works.

Friendly and fascinating, dolphins are one of nature's most intelligent animals. Award-winning science writer Seymour Simon has teamed up with the Smithsonian Institution to give you an expert view of these clever, curious, and mischievous mammals in a full-color photographic introduction.