The Help-for-Hire gang's toughest challenge yet begins when a new teacher assigns too much homework...

This book explains why earthquakes occur and describes the technology used to study them, the damage...

Ancient Egyptians believed that dead people should be preserved because they went to another world...

The business leaders profiled here, who started with very little, became successful by taking risks...

A mysterious rowboat transports five adventurous kids back in time to the eve of the Battle at...