Text and pictures introduce the lever, a simple machine used to change force and motion. Includes audio, videos, activities, weblinks, slideshows, transparencies, maps, quizzes, and supplementary resources.
"Explore this ... timeline history of physical science! What are matter, motion, gravity, electricity, magnetism, and substances? Who first studied these concepts? And who later built on and expanded the work of those early thinkers?"--Provided by publisher.
Describes what to expect when visiting the dentist, including the importance of regular check-ups, the tools the dentist uses, and how to keep the mouth healthy between visits.
"Provides comprehensive information on alcohol abuse, including first-person interviews, signs and symptoms, physical dangers, recovery, and solutions"--Provided by publisher.
Offers factual information about HIV and AIDS, providing an overview of the pandemic, discussing how they effect families, addressing connections to poverty, and exploring prevention, treatment, and related discrimination.
