Earthquakes

by Paul P Sipiera

Published 1 September 1998
Introduces the origins, causes, and destructive effects of earthquakes.

The Seasons

by Paul P Sipiera

Published 1 September 1998
Explains how and why the four seasons occur and examines the weather they bring.

Floods

by Paul P Sipiera

Published 1 September 1998
Explains the importance of water to life on Earth, how flooding occurs, and some of its most devastating consequences.

Thunderstorms

by Paul P Sipiera

Published 1 March 1999

Volcanoes

by Paul P Sipiera

Published 1 September 1998
Introduces the origins, causes, and destructive effects of volcanoes.