Steve Tomecek

Describes 45 inventions and discoveries in terms of the problem that needed solving, who the innovator was, how the solution was developed, and the impact of the invention.

A survey of the earth's rocks and minerals explores some of the ways they have been transformed into usable materials from talcum powder to silver jewelry, in a reference complemented by a bonus activity suggestion.

This book describes how rocks and minerals are formed by geological processes, and how they are used in our lives.

"Fun exploration of all the different rocks on our planet and in the universe"--

The Dirtmeister and his sidekick Digger introduce the world of geology, discussing minerals, the origins of the Earth, plate tectonics, rocks, and the dynamics of dirt.