surface

A trivia book of natural wonders that provides information about the world's biggest deserts, tallest mountains, and deepest canyons.

All caves are underground, but there is more to these landforms than meets the eye! Water forms some caves, while volcanic lava forms others. Some have waterfalls, while others have huge stalactites and stalagmites. Includes all the need-to-know information about canyons, including their characteristics, how they form, and where they can be found around the world.

Describes the astronomical properties of the Earth and its Moon, including the geological structure of Earth, it's different atmospheres, and the physical characteristics of the Moon.