Roza, Greg

Illustrations and simple text explore rocks and minerals, covering kinds of rocks, finding fossils, minerals, and more.

A brief introduction to Uranus, the seventh planet in the solar system, describing its orbit, unique characteristics, icy clouds, and related topics.

A brief introduction to Pluto, the dwarf planet in the solar system, describing its orbit, unique characteristics, moons, and related topics.

A brief introduction to Neptune, the eighth planet in the solar system, describing its orbit, unique characteristics, moons, and related topics.

Text and illustrations describe wedges, a simple machine.

Describes the ancient folklore, history, and mythological beliefs of various Andean peoples including the Incan civilization.

Provides an understanding of the mathematical concepts of probability through a series of easy-to-comprehend games.

Covering the period in U.S. history from 1783 to 1869, this book tells of the building of the Erie Canal, the U.S.-Mexican War, the Mormon migration, gold discoveries in the West, and more.

Text and photographs provide an introduction to black widow spiders, discussing what they look like, where they live, what they eat, how they defend themselves, and their toxin.