Houghton Mifflin Online Leveled Books

Whales are large mammals that live in the ocean. There are two groups of whales called baleen and toothed. Dolphins are toothed whales. All whales have special features that help them survive in the water.

The conflicting needs of man and animal have resulted in the near-extinction of the once plentiful Mexican gray wolf. Despite the efforts of conservationists, the delicate balance between human and animal rights continues to be elusive.

George Washington was known as a creative and effective problem solver. As a leader, he expressed courage and determination during difficult times. During the American Revolution, he found a way to overcome smallpox, one of the most deadly diseases ever known.

The Marquis de Lafayette, a French military officer, became a general in the American Revolution. He served under George Washington, and he helped negotiate French aid for American independence.

Hostess, mother, wife. This is Abigail Adams. Yet, she is so much more, as she runs the family farm, tends four children,grows the family?s food, and manages their finances in her husband John?s prolonged absences. Devoted to the Patriot cause, Abigail puts aside personal comfort to advise and reassure her husband and serve the new nation.

The women of Gee?s Bend have made quilts for generations, but their lives change after the quilts are discovered by an art collector. Now their quilts hang in museums.

Every day, scientists learn more and more about meteors, comets,and asteroids. Unlike the movies that Hollywood makes, scientists know that only a fraction of space rocks pose a threat to Earth. They continue to look for ways to disarm asteroids before they get too close to Earth.

India is defined by its geography, which features some of the world?s most diverse landforms. Because it?s located at the crossroads between East and West, India has long been a key trading partner. Its people have a long and proud history. The various cultures within India have also been shaped by the country?s geography.

From fireworks to wheelbarrows?ancient China is responsible for these and many of the innovations that we use today. This book takes readers through the history of ancient China and how their innovative inventors helped shaped the world we live in.

Sailors, traders, resource experts, artisans: These were the Phoenicians, whose Mediterranean crossroads location made their ports the envy of nearby civilizations. Emerging around 1220 B.C.E., Phoenicia?s city-states flourished until raids by Persians, Greeks, and others devastated the countryside, leaving scarce artifacts for today?s scientists to ponder the mysteries of this once-great culture.