"Simple text and color photographs describe the units and tools used to measure time--Provided by publisher.

"Simple text and color photographs describe the units and tools used to measure liquids"--

"This fascinating series takes a very simple look at animal classifications, with each book focussing on a different group of animal. This book is about mammals: what they do, how they behave, and how these characteristics are different from other groups of animals. Beautifully illustrated with colorful photographs, the book shows many examples of different types of mammals in their natural environment."--

"Describes the four branches of the U.S. Military, breaking them down by the numbers"--

Discusses what rivers are, their importance to humans and to the ecosystem, how humans are harming them, and what can be done to protect them.

Text and illustrations describe Tasmanian tigers, including how they lived and how they became extinct.

"Provides information about many species of sharks and shares a shark diver's experiences searching for and photographing them"--

"This fascinating series takes a very simple look at animal classifications, with each book focussing on a different group of animal. This book is about invertebrates: what they do, how they behave, and how these characteristics are different from other groups of animals. Beautifully illustrated with colorful photographs, the book shows many examples of different types of invertebrates in their natural environment."--

"Soon after American colonists had won independence from Great Britain, Ona Judge was fighting for her own freedom from one of America's most famous founding fathers, George Washington. George and Martha Washington valued Ona as one of their most skilled and trustworthy slaves, but she would risk everything to achieve complete freedom. Born into slavery at Mount Vernon, Ona seized the opportunity to escape when she was brought to live in the President's...