Looking at science : how things change

Explores aspects of human growth in question-and-answer format, covering such topics as teeth, learning to walk, and the importance of healthy food, exercise, and sleep.

"Provides a look at Earth, its relationship to the sun, earthquakes, volcanoes, and how people can help the planet"--Provided by publisher.

"An introductory look at what causes Earth's weather and seasons"--Provided by publisher.

"An explanation of life cycles of different types of plants and animals, as well as people"--Provided by publisher.