A hands-on introduction to the science of meteorology, explaining how to make equipment to measure rainfall, wind direction, and humidity, record measurements and observations in a weather log, make weather predictions, and perform other related activities.

Describes different kinds of bridges, their history, design, construction, and effects on populations, environmental dilemmas, safety, and more.

Discusses the history, language, religion, customs, and daily life of Mexico, using a variety of activities to reinforce the information.

Suggests a variety of activities for summertime, including nature study, cooking, crafts, games, creative activities, and more.

Third-grader Sam loves to doodle--especially during class--but his drawings will not help when he tells everyone that their favorite wrestler, Demo Dan, will be at Sam's birthday party.

Gives instructions for a variety of experiments that examine the characteristics of some of the common elements around us.

Describes the expedition led by Lewis and Clark to explore the unknown western regions of America at the beginning of the nineteenth century. Includes related activities.

Explores the facts and questions of human evolution through hands-on activities, crafts, and experiences.