George, Michael

Discusses the Sun's physical characteristics and its effect on Earth.

Describes what man has discovered about the intriguing red planet, from the days when the early Romans tracked its motion across the sky.

Describes the size, features, orbit, and possible future uses of Earth's natural satellite, the moon.

Describes the parts of a cell, their functions, and the different kinds of cells.

Discusses the origin of life, covering the definition of the term, the Big Bang theory for the origin of the universe, and the process through which the molecules necessary for life came to exist.

Describes the location, climate, and plant and animal life of the tundras in the Arctic regions.

Changes to the environment and destruction associated with catastrophic earthquakes and tsunamis are reviewed as well as possible means of averting such disasters.

Describes the location, climate, and animal life of the continent at the bottom of the world and some people who have explored this region.